Groowe Groowe BETA / Newsroom
⏱ News is delayed by 15 minutes. Sign in for real-time access. Sign in

Form 8-K

sec.gov

8-K — LIGAND PHARMACEUTICALS INC

Accession: 0001193125-26-302660

Filed: 2026-07-14

Period: 2026-07-14

CIK: 0000886163

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Entry into a Material Definitive Agreement

Item: Completion of Acquisition or Disposition of Assets

Item: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — d108457d8k.htm (Primary)

EX-99.1 (d108457dex991.htm)

GRAPHIC (g108457g0714063151537.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: d108457d8k.htm · Sequence: 1

8-K

LIGAND PHARMACEUTICALS INC false 0000886163 0000886163 2026-07-14 2026-07-14

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 14, 2026

LIGAND PHARMACEUTICALS INCORPORATED

(Exact Name of Registrant as Specified in Its Charter)

Delaware

001-33093

77-0160744

(State or other jurisdiction of

incorporation or organization)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

555 Heritage Drive, Suite 200

Jupiter, FL 33458

(Address of principal executive offices, including zip code)

(858) 550-7500

(Registrant’s Telephone Number, Including Area Code)

N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange

on which registered

Common Stock, par value $0.001 per share

LGND

The Nasdaq Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933(§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 1.01

Entry into a Material Definitive Agreement.

On July 14, 2026, Ligand Pharmaceuticals Incorporated, a Delaware corporation (the “Company”), completed its previously announced merger pursuant to the terms of that certain Agreement and Plan of Merger, dated April 27, 2026, as amended by Amendment No. 1 to the Agreement and Plan of Merger, dated May 16, 2026 (as amended, the “Merger Agreement”), by and among the Company, XOMA Royalty Corporation, a Nevada corporation (“XOMA Royalty”), Flex Merger Sub, Inc., a Nevada corporation and wholly owned subsidiary of the Company (“Merger Sub”), and XOMA Royalty Holdings Corporation, a Nevada corporation (“HoldCo”). Pursuant to the Merger Agreement, XOMA Royalty effected the Holding Company Reorganization (as defined below), and Merger Sub merged with and into HoldCo (the “Merger”), with HoldCo surviving the Merger as a wholly owned subsidiary of the Company (the “Closing”).

In connection with the Closing, the Company, as borrower, entered into that certain Amended and Restated Credit Agreement, dated July 14, 2026 (the “Amended Credit Agreement”), by and among the Company, certain of its subsidiaries, as Guarantors (as defined therein), the Lenders (as defined therein) party thereto, and Citibank, N.A., as Administrative Agent, Swingline Lender and L/C Issuer (each as defined therein), which amends and restates in its entirety that certain Credit Agreement, dated as of October 12, 2023, by and among the Company, as borrower, certain of its subsidiaries, as Guarantors (as defined therein), the Lenders (as defined therein) party thereto, and Citibank, N.A., as Administrative Agent, Swingline Lender and L/C Issuer (each as defined therein), as amended to date.

The Amended Credit Agreement provides for a $125.0 million revolving credit facility with a maturity date of September 12, 2028.

Borrowings under the Amended Credit Agreement are secured by certain collateral of the Company and the Guarantors and are guaranteed by all of the Company’s material domestic subsidiaries, each of whom will derive substantial benefit from the revolving credit facility. In specified circumstances, additional guarantors are required to be added. The Amended Credit Agreement contains various restrictive covenants subject to certain exceptions, including limitations on the Company’s ability to incur indebtedness and certain liens, make certain investments, become liable under contingent obligations in certain circumstances, make certain restricted payments, make certain dispositions within guidelines and limits, engage in certain affiliate transactions, alter its fundamental business or make certain fundamental changes, and requirements to maintain financial covenants, including maintaining a consolidated senior secured net leverage ratio of no greater than 2.50 to 1.00 (increasing to, at the election of the Company, 3.00 to 1.00 with respect to the fiscal quarter in which a material permitted acquisition is consummated (other than the Merger) and the immediately subsequent three fiscal quarters thereafter) and maintaining minimum consolidated EBITDA (as defined in the Amended Credit Agreement) for any trailing four-quarter period of not less than (i) from the fiscal quarter ended June 30, 2026 to (and including) the fiscal quarter ending March 31, 2027, $100 million, and (ii) from and after the fiscal quarter ending June 30, 2027, $150 million.

The Company’s consolidated total net leverage ratio determines pricing under the Amended Credit Agreement. At the Company’s option, borrowings under the revolving credit facility accrue interest at a rate equal to either Term SOFR Rate or a specified base rate plus an applicable margin. The margins range from 1.75% to 2.50% per annum for Term SOFR Rate loans and 0.75% to 1.50% per annum for base rate loans. The revolving credit facility is subject to a commitment fee payable on the unused revolving credit facility commitments ranging from 0.300% to 0.450%, depending on the Company’s consolidated total net leverage ratio. The Company is also required to pay certain fees to the Administrative Agent and L/C Issuer under the revolving credit facility. During the term of the revolving credit facility, the Company may borrow, repay and re-borrow amounts available under the revolving credit facility, subject to voluntary reductions of the swing line, letter of credit and revolving credit commitments.

In addition, the Amended Credit Agreement includes events (including, without limitation, a non-payment under the loan, a breach of warranties and representations in any material respect, non-compliance with covenants by a loan party, cross-default for payment defaults and cross-acceleration for other defaults under material debt or a change of control) which, if not cured within the time period, if any, specified would constitute an event of default. Upon the occurrence of such events of default, the Company could not request borrowings and the lenders may elect to accelerate the outstanding principal and accrued and unpaid interest under the revolving credit facility. Further, outstanding principal and accrued and unpaid interest thereon automatically accelerate upon the entry of an order for relief with respect to any loan party under any bankruptcy, insolvency or other similar law.

The foregoing description of the Amended Credit Agreement does not purport to be complete and is qualified by the full text of the Amended Credit Agreement, which the Company expects to file with the Securities and Exchange Commission as an exhibit to the Company’s quarterly report on Form 10-Q for the quarter ended June 30, 2026.

Item 2.01

Completion of Acquisition or Disposition of Assets.

The information contained in the first paragraph of item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.01.

Unless the context otherwise requires, all references in this Current Report on Form 8-K to “XOMA Royalty” refers to HoldCo. Following the Holding Company Reorganization, HoldCo assumed all obligations of XOMA Royalty under the Merger Agreement.

On July 14, 2026, the Company consummated the previously announced Merger with HoldCo in accordance with the terms of the Merger Agreement. Pursuant to the Merger Agreement, XOMA Royalty effected the Holding Company Reorganization (as defined below) prior to giving effect to the Merger.

The Merger

Pursuant to the Merger Agreement, at the time the Merger became effective (the “Effective Time”), each share of common stock, par value $0.0075 per share, of XOMA Royalty (the “Shares”) issued and outstanding immediately prior to the Effective Time (other than certain Shares canceled pursuant to the Merger Agreement and Dissenting Shares (as defined in the Merger Agreement)) was automatically converted into the right to receive (i) $39.00 per Share in cash, without interest, and subject to deduction for any required withholding tax, plus (ii) an amount of contingent value rights (each, a “CVR”) representing a right to receive contingent payments derived from the CVR Trust’s interest in XOMA Royalty LLC (as defined below) in accordance with the CVR Agreement (as defined in the Merger Agreement) (as further described below under the heading “CVR Spin”) (clauses (i) and (ii) collectively, the “Merger Consideration”).

In addition, pursuant to the Merger Agreement, on July 14, 2026, prior to the Effective Time, each share of XOMA Royalty’s 8.625% Series A Cumulative Perpetual Preferred Stock, par value $0.05 per share (the “Series A Preferred Stock”), and 8.375% Series B Cumulative Perpetual Preferred Stock, par value $0.05 per share (the “Series B Preferred Stock”, together with the Series A Preferred Stock, the “Perpetual Preferred Stock”), was redeemed in accordance with the terms of the applicable certificate of designation governing such Perpetual Preferred Stock, including payment of all accrued and unpaid dividends thereon through the date of such redemption.

The Merger Agreement also specified the treatment of XOMA Royalty’s outstanding equity awards and warrants in connection with the Merger.

The foregoing description of the Merger Agreement and the transactions contemplated thereby does not purport to be complete and is qualified in its entirety by reference to the Merger Agreement, which was previously filed as Exhibit 2.1 to the Current Report on Form 8-K filed by the Company with the SEC on April 27, 2026 and which is incorporated herein by reference.

The information set forth under the heading “Support Agreement” in Item 1.01 of the Current Report on Form 8-K filed by the Company with the SEC on April 27, 2026 is incorporated herein by reference.

Holding Company Reorganization

Prior to the Effective Time, XOMA Royalty effected a holding company reorganization (the “Holding Company Reorganization”) pursuant to NRS Chapter 92A, whereby (i) XRH Merger Sub, Corp., a Nevada corporation and a direct, wholly owned subsidiary of HoldCo, merged with and into XOMA Royalty, with XOMA Royalty surviving as a direct, wholly owned subsidiary of HoldCo and HoldCo becoming a holding company of XOMA Royalty, (ii) each Share issued and outstanding immediately prior to the effectiveness of the Holding Company Reorganization was automatically converted into one share of common stock of HoldCo, having the same rights, powers and preferences as such Share, and (iii) each of XOMA Royalty’s equity-based awards outstanding immediately prior to the effectiveness of the Holding Company Reorganization was automatically converted into a corresponding award with respect to shares of HoldCo common stock on the same terms and conditions.

CVR Spin

Following the completion of the Holding Company Reorganization, the following transactions were effected in the order set forth below (collectively, the “CVR Spin”):

(i)

following the effective time of the Holding Company Reorganization, immediately prior to the Effective Time, HoldCo caused XOMA Royalty to convert from a Nevada corporation into a Delaware limited liability company named XOMA Royalty LLC (the “RemainCo Conversion” and the as converted entity, “XOMA Royalty LLC”);

(ii)

following the RemainCo Conversion, HoldCo caused XOMA Royalty LLC to transfer to HoldCo (or one or more designees of HoldCo) the HoldCo Business Assets and Business Liabilities (as each such term is defined in the Merger Agreement) (such transactions, collectively, the “Asset/Liability Transfer”);

(iii)

following the Asset/Liability Transfer, HoldCo contributed 75% of the issued and outstanding limited liability company units of XOMA Royalty LLC to the trust (the “CVR Trust”) established pursuant to the trust agreement entered into prior to the Effective Time by and among HoldCo, the trustee thereunder (the “Trustee”), and XOMA Royalty LLC (the “CVR Trust Agreement”) (the “Trust Contribution”), to be held and administered by the Trustee in accordance with the CVR Trust Agreement for the benefit of the holders of CVRs; and

(iv)

following the Trust Contribution, HoldCo paid, on a pro rata basis, to each holder of record of HoldCo common stock and HoldCo preferred stock (on an as-converted-to-common basis) as of immediately prior to the Effective Time as additional Merger Consideration, CVRs representing the right to receive contingent payments derived from the CVR Trust’s interest in XOMA Royalty LLC in accordance with the CVR Trust Agreement.

Item 2.03

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information set forth under Item 1.01 of this Current Report on Form 8-K is incorporated herein by reference.

Item 7.01

Regulation FD Disclosure.

On July 14, 2026, the Company issued a press release announcing the completion of the Merger. A copy of the press release is furnished hereto as Exhibit 99.1.

In accordance with General Instruction B.2. of Form 8-K, the information in this Item 7.01 of this report, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01

Financial Statements and Exhibits.

(a) Financial statements of business acquired.

The Company will provide the financial statements required to be filed by Item 9.01(a) of Form 8-K by amendment to this Current Report on Form 8-K no later than the 71st day after the required filing date for this Current Report on Form 8-K.

(b) Pro forma financial information

The Company will provide the pro forma financial statements required to be filed by Item 9.01(b) of Form 8-K by amendment to this Current Report on Form 8-K no later than the 71st day after the required filing date for this Current Report on Form 8-K.

(d) Exhibits.

Exhibit

Description

2.1*

Agreement and Plan of Merger, dated as of April 27, 2026, by and among XOMA Royalty Corporation, Ligand Pharmaceuticals Incorporated and Flex Merger Sub, Inc. (incorporated by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed with the SEC on April 27, 2026).

2.2

Amendment No. 1 to the Agreement and Plan of Merger, dated as of May 16, 2026, by and among XOMA Royalty Corporation, XOMA Royalty Holdings Corporation, Ligand Pharmaceuticals Incorporated and Flex Merger Sub, Inc. (incorporated by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed with the SEC on May 18, 2026).

10.1*

Form of Support Agreement, dated as of April 27, 2026, entered into by Ligand Pharmaceuticals Incorporated, Flex Merger Sub, Inc. and the Supporting Stockholders (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on April 27, 2026).

99.1

Press Release of Ligand Pharmaceuticals Incorporated, dated July 14, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

*

Certain exhibits and schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The Company agrees to furnish supplementally a copy of any omitted exhibit or schedule to the SEC upon request; provided, however, that the Company may request confidential treatment pursuant to Rule 24b-2 of the Exchange Act for any schedule so furnished.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

LIGAND PHARMACEUTICALS INCORPORATED

Date: July 14, 2026

By:

/s/ Andrew Reardon

Name:

Andrew Reardon

Title:

Chief Legal Officer and Secretary

EX-99.1

EX-99.1

Filename: d108457dex991.htm · Sequence: 2

EX-99.1

Exhibit 99.1

FOR IMMEDIATE RELEASE

Ligand Completes Acquisition of XOMA Royalty, Creating a Portfolio of More than 200 Biopharmaceutical Royalty Assets

Acquisition adds seven commercial products including VABYSMO® (faricimab-svoa),

OJEMDA™ (tovorafenib), and MIPLYFFA® (arimoclomol), and more than 100 development and commercial-stage assets,

creating long-term opportunities to drive growth

Ligand to provide updated 5-year outlook

during Investor Day on December 8, 2026

JUPITER, Fla., July 14, 2026 – Ligand Pharmaceuticals Incorporated (Nasdaq: LGND) today

announced it has completed its acquisition of XOMA Royalty Corporation (“XOMA Royalty”), a biotechnology royalty aggregator, for $39.00 per share of common stock in cash, for a total equity value of approximately $739 million. XOMA

Royalty stockholders also received one non-transferable Contingent Value Right (“CVR”) per share entitling the holder to receive a portion of 75% of the net proceeds that may result from certain

pending litigation at XOMA Royalty.

“At Ligand, we are focused on building a diversified portfolio of high-value royalty assets tied to innovative

medicines that have the potential to improve patient outcomes around the world,” said Todd Davis, CEO of Ligand. “Over the past several years, we have executed a disciplined strategy to expand, diversify and strengthen our royalty

portfolio, and the acquisition of XOMA Royalty meaningfully advances that vision. This transaction adds exposure to high-quality commercial and development-stage assets and enhances our ability to generate durable, long-term shareholder value,

marking an important milestone in our evolution as a leading biopharmaceutical royalty aggregator.”

This acquisition strengthens Ligand’s

royalty portfolio by adding seven commercial products, including Roche’s VABYSMO® (faricimab-svoa), Servier’s OJEMDA™

(tovorafenib), and Zevra Therapeutics’ MIPLYFFA® (arimoclomol). Additionally, it includes 14 late-stage development programs, featuring Takeda’s mezagitamab and certain assets from

Takeda’s externalized asset portfolio, such as osavampator, volixibat, and OHB-607, along with more than 100 assets in various stages of development. As a result, Ligand’s portfolio has more than

doubled in size, now comprising over 200 commercial, clinical, and preclinical stage royalty assets.

The closing of the transaction met Ligand’s

original timeline expectations. The transaction is expected to be immediately accretive and to add approximately $0.50 and $1.50 per share to Ligand’s projected 2026 and 2027 adjusted earnings per share1, respectively. Ligand will provide an updated 5-year outlook during the Company’s Investor Day on December 8, 2026.

In connection with the completion of the transaction, XOMA Royalty common stock ceased trading on The Nasdaq Global Market.

Advisors

Stifel served as lead financial advisor, Citi

served as financial advisor, Paul Hastings LLP served as legal advisor, and Collected Strategies served as strategic communications advisor to Ligand. Leerink Partners served as lead financial advisor, H.C. Wainwright & Co. served as

financial advisor, and Gibson, Dunn & Crutcher LLP served as legal advisor to XOMA Royalty.

About Ligand

Ligand is a leading royalty aggregator, partnering with biopharmaceutical companies to finance and advance late-stage clinical development programs. Ligand

owns and manages one of the largest and most diversified portfolios of biopharmaceutical royalties in the industry, with economic interests in more than 200 development and commercial-stage assets. Ligand funds high-value programs in exchange for

long-term economic interests, aligning capital with clinical and commercial success. Ligand’s royalty portfolio is designed to deliver consistent and predictable revenue streams across a broad range of therapeutic assets. Ligand also licenses

its proprietary technologies, Captisol® and NITRICIL™, to support drug development and formulation across its global partner network.

For more information, visit www.ligand.com or follow Ligand on X and LinkedIn.

Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 that involve

substantial risks and uncertainties, including information about, among other topics, Ligand’s acquisition of XOMA Royalty, Ligand’s and XOMA Royalty’s products pipeline and the substantial risks and uncertainties that could cause

actual results to differ materially from those expressed or implied by such statements. Risks and uncertainties include, among other things, risks related to the ability to realize the anticipated benefits of the acquisition, including the

possibility that the expected benefits from the acquisition will not be realized or will not be realized within the expected time period; the risk that the businesses will not be integrated successfully; the risk that XOMA Royalty stockholders may

receive no payment with respect to the CVRs; disruption from the transaction making it more difficult to maintain business and operational relationships, including the ability to attract and retain highly qualified management and other clinical and

scientific personnel; negative effects of this announcement or the completion of the acquisition on the market price of Ligand’s common stock and/or operating results; significant transaction costs; unknown liabilities; the risk of litigation

and/or regulatory actions related to the acquisition of XOMA Royalty’s business; other business effects and uncertainties, including the effects of industry, market, business, economic, political or regulatory conditions; future exchange and

interest rates; risks and uncertainties related to issued or future executive orders or other new, or changes in, laws, regulations or policy; changes in tax and other laws, regulations, rates and policies; the uncertainties inherent in business and

financial planning, including, without limitation, risks related to Ligand’s business and prospects, adverse developments in Ligand’s markets, or adverse developments in the U.S. or global capital markets, credit markets, regulatory

environment, tariffs and other trade policies or economies generally; future business combinations or disposals; uncertainties regarding the commercial success of commercialized and/or pipeline products; risks associated with drug development;

Ligand’s reliance on collaborative partners for milestone payments, royalties, materials revenue, contract payments and other revenue projections, which may not be received; the uncertainties inherent in research and development, including the

ability of Ligand’s partners to meet anticipated clinical endpoints, commencement and/or completion dates for clinical trials, regulatory submission dates, regulatory approval dates and/or launch dates, as well as the possibility of

unfavorable new clinical data and further analyses of existing clinical data; risks associated with initial, preliminary or interim data; the risk that clinical trial data are subject to differing interpretations and assessments by regulatory

authorities; whether regulatory authorities will be satisfied with the design of and results from the clinical trials conducted by Ligand’s partners; whether and when drug applications may be filed in any jurisdictions for pipeline products

for any potential indications by Ligand’s partners; whether and when any such

applications may be approved by regulatory authorities, which will depend on myriad factors, including making a determination as to whether the product’s benefits outweigh its known risks

and determination of the product’s efficacy and, if approved, whether any such products will be commercially successful; and decisions by regulatory authorities impacting labeling, manufacturing processes, safety and/or other matters that

could affect the availability or commercial potential of such products.

You should carefully consider the foregoing factors and the other risks and

uncertainties that affect the businesses of Ligand and XOMA Royalty described in the “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements” (in the case of Ligand) and “Forward Looking

Statements” (in the case of XOMA Royalty) sections of their respective Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other documents filed by

either of them from time to time with the U.S. Securities and Exchange Commission (the “SEC”), all of which are available at www.sec.gov. These filings identify and address other important risks and uncertainties that could

cause actual events and results to differ materially from those contained in the forward-looking statements. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking

statements, and Ligand assumes no obligation to, and does not intend to, update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise, unless required by law. Ligand gives no assurance that

it will achieve its expectations.

Contacts

Investors:

Melanie Herman

investors@ligand.com

(858)

550-7761

Media:

Nick Lamplough/Jude Gorman

Ligand-CS@collectedstrategies.com

(917) 885-1013

1

The financial outlook, expectations and other forward-looking statements provided by Ligand for 2026 and beyond

reflect Ligand’s judgment based on the information available at the time of this release. Please see the Forward-looking Statements section in this release for factors that may impact Ligand’s ability to meet expectations. In reliance

upon Item 10(e)(1)(i)(B) of Regulation S-K, reconciliations of forward-looking core adjusted earnings per diluted share for 2027 is not provided because of the unreasonable effort associated with providing

such reconciliations due to the variability in the occurrence and the amounts of certain components thereof. For the same reasons, we are unable to address the significance of the unavailable information, which could be material to future results.

GRAPHIC

GRAPHIC

Filename: g108457g0714063151537.jpg · Sequence: 6

Binary file (3322 bytes)

Download g108457g0714063151537.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 8

v3.26.1

Document and Entity Information

Jul. 14, 2026

Cover [Abstract]

Entity Registrant Name

LIGAND PHARMACEUTICALS INC

Amendment Flag

false

Entity Central Index Key

0000886163

Document Type

8-K

Document Period End Date

Jul. 14, 2026

Entity Incorporation State Country Code

DE

Entity File Number

001-33093

Entity Tax Identification Number

77-0160744

Entity Address, Address Line One

555 Heritage Drive

Entity Address, Address Line Two

Suite 200

Entity Address, City or Town

Jupiter

Entity Address, State or Province

FL

Entity Address, Postal Zip Code

33458

City Area Code

(858)

Local Phone Number

550-7500

Written Communications

false

Soliciting Material

false

Pre Commencement Tender Offer

false

Pre Commencement Issuer Tender Offer

false

Security 12b Title

Common Stock, par value $0.001 per share

Trading Symbol

LGND

Security Exchange Name

NASDAQ

Entity Emerging Growth Company

false

X

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 2 such as Street or Suite number

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine2

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration