John l. Lamattina

Board Director

Director

Insider activity · 24 months0 buys1 saleCumulative net flow

Nov 24 · 0 buys · 0 salesDec 24 · 0 buys · 0 salesJan 25 · 0 buys · 0 salesFeb 25 · 0 buys · 0 salesMar 25 · 0 buys · 0 salesApr 25 · 0 buys · 0 salesMay 25 · 0 buys · 0 salesJun 25 · 0 buys · 0 salesJul 25 · 0 buys · 0 salesAug 25 · 0 buys · 0 salesSept 25 · 0 buys · 0 salesOct 25 · 0 buys · 0 salesNov 25 · 0 buys · 0 salesDec 25 · 0 buys · 0 salesJan 26 · 0 buys · 0 salesFeb 26 · 0 buys · 0 salesMar 26 · 0 buys · 1 saleApr 26 · 0 buys · 0 salesMay 26 · 0 buys · 0 salesJun 26 · 0 buys · 0 salesJul 26 · 0 buys · 0 salesAug 26 · 0 buys · 0 salesSept 26 · 0 buys · 0 salesOct 26 · 0 buys · 0 sales

Total declarations

Companies

▲ Purchases (1 ops.)

€5,103

▼ Sales (1 ops.)

€374k

Latest filing published 31 Mar 2026 for Ligand Pharmaceuticals INC, €213k. Read the official filing

Filing timeline

BuySale

John l. Lamattina

Insider track record

Disclosed buys

Disclosed sells

T+90 hit rate

T+90 mean return

-31.4%

Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.

Signal history

John l. Lamattina: trading record in brief

John l. Lamattina, listed as board member, has filed trades across 2 companies (mainly through SEC (Form 4)), most often in Ligand Pharmaceuticals Inc and Immunome Inc. We count 12 filings; the first trade dates from 24 May 2021 and the latest from 6 March 2026.

On the open market, the record shows 1 purchase worth €5,103 and 1 sale worth €374k. Netting one side against the other leaves €369k of net selling. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 6 share grants and 4 option exercises. Since January 2026: no purchases and 1 sale on the market.

On 31 March 2026 came the latest disclosure, an option exercise for €213k in Ligand Pharmaceuticals Inc. The clock since the last published purchase (26 May 2021) now reads 1,971 days. The median gap between a trade and its publication by SEC (Form 4) is 4 days. US insiders must file a Form 4 within two business days of a trade. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.