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 $152.2M across reported positions.

"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.

Disclosed Exposure

$152.23M

Companies

5

Total Filings

10

Lifetime Open-Market Net

-$7.57M

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	—	$28.66	—	$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	$31.74	$151.75M	$0	1	2015-06-01
LGND	Director	1,667	$287.54	$479.3K	$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.