← United States · Coverage record
US · SEC FORM 4
LIGAND PHARMACEUTICALS INC
LGND · Nasdaq; OTC · CIK 0000886163 · Healthcare · Biotechnology
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
92 Form 4 transaction lines observed in the same window
62 sales · 30 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 4 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-05-09 · Davis Todd C.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 2,677,998
- Previous report
- 2,632,434
- Avg daily volume
- 306,650
- Days to cover
- 8.7
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-05-09 | Espinoza Octavio | Purchase (P) | Common Stock | 1,500 | USD 104.06 | USD 156,090 | SEC filing ↗ |
| 2025-05-09 | Davis Todd C | Purchase (P) | Common Stock | 9,510 | USD 105.20 | USD 1,000,444 | SEC filing ↗ |
| 2024-08-08 | Davis Todd C | Purchase (P) | Common Stock | 2,500 | USD 97.39 | USD 243,475 | SEC filing ↗ |
| 2023-09-22 | Davis Todd C | Purchase (P) | Common Stock | 4,000 | USD 59.38 | USD 237,520 | SEC filing ↗ |
| 2022-05-13 | FOEHR MATTHEW W | Purchase (P) | Common Stock | 2,500 | USD 82.76 | USD 206,900 | SEC filing ↗ |
| 2020-11-02 | Patel Sunil | Purchase (P) | Common Stock | 1,000 | USD 82.52 | USD 82,520 | SEC filing ↗ |
Form 4 evidence
205 transaction lines in the latest 365-day window; 573 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-02 | Reardon Andrew | Sale (S) | Common Stock | 5,000 | USD 304.07 | USD 1,520,346 | SEC filing ↗ |
| 2026-10-02 | Reardon Andrew | Option exercise / conversion (M) | Common Stock | 340 | USD 52.27 | USD 17,772 | SEC filing ↗ |
| 2026-09-22 | Zimmermann Martine | Tax withholding (F) | Common Stock | 115 | USD 298.50 | USD 34,328 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-02 | Reardon Andrew | Sale (S) | Common Stock | 5,000 | USD 304.07 | USD 1,520,346 | SEC filing ↗ |
| 2026-10-02 | Reardon Andrew | Option exercise / conversion (M) | Common Stock | 340 | USD 52.27 | USD 17,772 | SEC filing ↗ |
| 2026-09-22 | Zimmermann Martine | Tax withholding (F) | Common Stock | 115 | USD 298.50 | USD 34,328 | SEC filing ↗ |
| 2026-09-10 | Zimmermann Martine | Sale (S) | Common Stock | 1,200 | USD 285.00 | USD 342,000 | SEC filing ↗ |
| 2026-09-03 | Reardon Andrew | Sale (S) | Common Stock | 5,000 | USD 286.09 | USD 1,430,445 | SEC filing ↗ |
| 2026-08-12 | Haas Jason | Sale (S) | Common Stock | 7,138 | USD 292.81 | USD 2,090,078 | SEC filing ↗ |
| 2026-08-12 | Haas Jason | Option exercise / conversion (M) | Common Stock | 6,138 | USD 51.56 | USD 316,475 | SEC filing ↗ |
| 2026-08-12 | Espinoza Octavio | Sale (S) | Common Stock | 31,641 | USD 292.07 | USD 9,241,387 | SEC filing ↗ |
| 2026-08-12 | Espinoza Octavio | Option exercise / conversion (M) | Common Stock | 31,641 | USD 56.91 | USD 1,800,574 | SEC filing ↗ |
| 2026-08-03 | Reardon Andrew | Sale (S) | Common Stock | 5,000 | USD 288.99 | USD 1,444,949 | SEC filing ↗ |
| 2026-08-03 | Reardon Andrew | Option exercise / conversion (M) | Common Stock | 5,000 | USD 52.27 | USD 261,350 | SEC filing ↗ |
| 2026-07-01 | Reardon Andrew | Sale (S) | Common Stock | 5,000 | USD 313.28 | USD 1,566,382 | SEC filing ↗ |
| 2026-07-01 | Reardon Andrew | Option exercise / conversion (M) | Common Stock | 5,000 | USD 52.27 | USD 261,350 | SEC filing ↗ |
| 2026-06-30 | Reardon Andrew | J (J) | Common Stock | 132 | USD 160.71 | USD 21,214 | SEC filing ↗ |
| 2026-06-30 | Espinoza Octavio | J (J) | Common Stock | 17 | USD 160.71 | USD 2,732 | SEC filing ↗ |
| 2026-06-30 | Davis Todd C | J (J) | Common Stock | 132 | USD 160.71 | USD 21,214 | SEC filing ↗ |
| 2026-06-16 | Sabba Stephen L | Sale (S) | Common Stock | 2,145 | USD 254.00 | USD 544,830 | SEC filing ↗ |
| 2026-06-16 | Sabba Stephen L | Option exercise / conversion (M) | Common Stock | 2,145 | USD 66.13 | USD 141,849 | SEC filing ↗ |
| 2026-06-12 | Haas Jason | Sale (S) | Common Stock | 6,461 | USD 255.58 | USD 1,651,323 | SEC filing ↗ |
| 2026-06-12 | Haas Jason | Option exercise / conversion (M) | Common Stock | 4,000 | USD 51.56 | USD 206,240 | SEC filing ↗ |
| 2026-06-11 | Aryeh Jason | Sale (S) | Common Stock | 4,500 | USD 250.00 | USD 1,125,000 | SEC filing ↗ |
| 2026-06-10 | LAMATTINA JOHN L | Sale (S) | Common Stock | 4,591 | USD 250.88 | USD 1,151,786 | SEC filing ↗ |
| 2026-06-10 | Aryeh Jason | Sale (S) | Common Stock | 500 | USD 250.00 | USD 125,000 | SEC filing ↗ |
| 2026-06-05 | Aryeh Jason | Award / grant (A) | Common Stock | 836 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-05 | Zimmermann Martine | Tax withholding (F) | Common Stock | 182 | USD 237.00 | USD 43,134 | SEC filing ↗ |
| 2026-06-05 | Zimmermann Martine | Award / grant (A) | Common Stock | 836 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-05 | Sabba Stephen L | Award / grant (A) | Common Stock | 836 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-05 | LAMATTINA JOHN L | Award / grant (A) | Common Stock | 836 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-05 | KOZARICH JOHN W | Award / grant (A) | Common Stock | 836 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-05 | Haas Jason | Award / grant (A) | Common Stock | 836 | USD 0.00 | USD 0 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | LGND |
| CIK | 0000886163 |
| Sector | Healthcare |
| Industry | Biotechnology Yahoo Finance |
| SEC SIC | 2834 Pharmaceutical Preparations |
| Exchange | Nasdaq; OTC |
Data coverage
| Local Form 4 history | 573 transaction lines from 2020-02-13 to 2026-10-02 9 P purchase lines · 204 S sale lines · 360 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.