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LIGAND PHARMACEUTICALS INC

CIK 886163 · last filed 2025-12-19

LIGAND PHARMACEUTICALS INC is a corporate insider who has filed 10 SEC Form 4 insider transactions across 5 companies since 2008. The most recent filing, for PTHS, was dated Dec 19, 2025. Across all open-market trades the lifetime net is −$7.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $143.7M across reported positions. The firm reports its address in San Diego, CA. 96 SEC filings were submitted jointly with JOHN W KOZARICH.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$143.65M

Companies

5

Total Filings

10

Lifetime Open-Market Net

-$7.57M

Filer Profile

Reported Address
3911 SORRENTO VALLEY BLVD
SUITE 110
SAN DIEGO, CA 92121
Phone
(858) 550-7500
State of Incorporation
DE
Formerly Known As
LIGAND PHARMACEUTICALS (1994–1994)
Related Filers
JOHN W KOZARICH — 96 joint filings, latest 2026-06-09
JOHN L HIGGINS — 91 joint filings, latest 2022-12-30
Jason Aryeh — 77 joint filings, latest 2026-06-12
DAVID M KNOTT — 65 joint filings, latest 2018-02-13
Charles S Berkman — 62 joint filings, latest 2022-11-03
MATTHEW W FOEHR — 59 joint filings, latest 2022-11-03
Matthew E Korenberg — 59 joint filings, latest 2024-11-12
Todd C Davis — 52 joint filings, latest 2026-07-06
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
PTHS Director — $20.32 — $0 2 2025-12-19
Viking Therapeutics, Inc. (VKTXW) Delisted 10%+ Owner 5,819,383 $4.60 $26.77M -$7.57M 3 2020-08-28
Viking Therapeutics, Inc. (VKTX.W) Delisted 10%+ Owner 6,300,964 — — $0 1 2016-04-15
VKTX 10%+ Owner 4,780,964 $29.95 $143.19M $0 1 2015-06-01
LGND Director 1,667 $276.98 $461.7K $0 1 2008-08-06

Recent Filings

10 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2025-12-19 PTHS Mixed — $0 EDGAR
2025-11-10 PTHS Grant (A) — $0 EDGAR
2025-07-03 — Mixed +1,500,000 $15.00M
2022-11-03 — Other (J) −16,859,308 $0
2020-08-28 Viking Therapeutics, Inc. (VKTXW) Delisted Sell (S) −148,700 -$1.21M EDGAR
2020-08-27 Viking Therapeutics, Inc. (VKTXW) Delisted Sell (S) −164,488 -$1.33M EDGAR
2018-09-27 Viking Therapeutics, Inc. (VKTXW) Delisted Mixed −262,881 -$5.03M EDGAR
2016-04-15 Viking Therapeutics, Inc. (VKTX.W) Delisted Mixed +1,520,000 $1.20M EDGAR
2015-06-01 VKTX Other (J) +228,105 $0 EDGAR
2008-08-06 LGND Grant (A) +10,000 $0 EDGAR
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.