Charles S Berkman insider trades: OmniAb (OABI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Charles reports to the SEC
Open-market buys and sales
29 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 7, 2026 | OABI | ↓ Sell | 7,157 | $1.49 | $11K | Direct | Apr 7, 2026 (0d) |
| Feb 18, 2026 | OABI | ↓ Sell | 9,673 | $1.71 | $17K | Direct | Feb 18, 2026 (0d) |
| Feb 17, 2026 | OABI | ↓ Sell | 6,990 | $1.70 | $12K | Direct | Feb 17, 2026 (0d) |
| Dec 8, 2025 | OABI | ↓ Sell | 8,044 | $1.96 | $16K | Direct | Dec 9, 2025 (1d) |
| Apr 7, 2025 | OABI | ↓ Sell | 7,206 | $2.00 | $14K | Direct | Apr 7, 2025 (0d) |
| Feb 19, 2025 | OABI | ↓ Sell | 15,470 | $3.68 | $57K | Direct | Feb 19, 2025 (0d) |
| Jan 21, 2025 | OABI | ↓ Sell | 25,489 | $3.24 | $83K | Direct | Jan 22, 2025 (1d) |
| Dec 9, 2024 | OABI | ↓ Sell | 8,022 | $4.13 | $33K | Direct | Dec 10, 2024 (1d) |
| Apr 8, 2024 | OABI | ↓ Sell | 6,954 | $5.27 | $37K | Direct | Apr 9, 2024 (1d) |
| Feb 4, 2021 | LGND | ↓ Sell | 18,097 | $178.50 | $3.2M | Direct | Feb 5, 2021 (1d) |
| Jun 4, 2020 | LGND | ↓ Sell | 11,146 | $118.59 | $1.3M | Direct | Jun 5, 2020 (1d) |
| Sep 17, 2018 | LGND | ↓ Sell10b5-1 | 2,813 | $250.69 | $705K | Direct | Sep 18, 2018 (1d) |
| Sep 4, 2018 | LGND | ↓ Sell10b5-1 | 19,417 | $254.99 | $5.0M | Direct | Sep 5, 2018 (1d) |
| Aug 9, 2017 | LGND | ↓ Sell | 18,625 | $126.96 | $2.4M | Direct | Aug 10, 2017 (1d) |
| Aug 5, 2016 | LGND | ↓ Sell | 22,067 | $123.16 | $2.7M | Direct | Aug 9, 2016 (4d) |
| Jul 10, 2015 | LGND | ↓ Sell10b5-1 | 14,067 | $99.14 | $1.4M | Direct | Jul 14, 2015 (4d) |
| Mar 16, 2015 | LGND | ↓ Sell | 11,264 | $74.54 | $840K | Direct | Mar 18, 2015 (2d) |
| Dec 31, 2014 | LGND | ↑ Buy | 126 | $45.23 | $6K | Direct | Jan 5, 2015 (5d) |
| Jun 30, 2014 | LGND | ↑ Buy | 329 | $43.79 | $14K | Direct | Jul 1, 2014 (1d) |
| May 27, 2014 | LGND | ↓ Sell | 7,166 | $66.90 | $479K | Direct | May 28, 2014 (1d) |
| Feb 12, 2014 | LGND | ↓ Sell | 14,881 | $74.50 | $1.1M | Direct | Feb 14, 2014 (2d) |
| Dec 31, 2013 | LGND | ↑ Buy | 209 | $33.91 | $7K | Direct | Jan 2, 2014 (2d) |
| Aug 30, 2013 | LGND | ↓ Sell | 28,323 | $47.54 | $1.3M | Direct | Sep 4, 2013 (5d) |
| Aug 16, 2013 | LGND | ↓ Sell | 14,583 | $42.63 | $622K | Direct | Aug 20, 2013 (4d) |
| Jun 28, 2013 | LGND | ↑ Buy | 815 | $17.36 | $14K | Direct | Jul 1, 2013 (3d) |
| May 10, 2013 | LGND | ↓ Sell | 4,000 | $26.66 | $107K | Direct | May 13, 2013 (3d) |
| Sep 7, 2012 | LGND | ↓ Sell | 4,249 | $18.77 | $80K | Direct | Sep 10, 2012 (3d) |
| Mar 8, 2012 | LGND | ↓ Sell | 3,606 | $15.76 | $57K | Direct | Mar 8, 2012 (0d) |
| Feb 16, 2011 | LGND | ↓ Sell | 5,000 | $9.75 | $49K | Direct | Feb 18, 2011 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other OABI insiders
Open-market trades in the last 12 months
About Charles S Berkman's insider trades
Charles S Berkman is Chief Legal Officer at OmniAb (OABI). Since Feb 16, 2011, Charles has reported 4 open-market purchases worth $41K and 25 sales worth $21.7M on SEC Form 4. In the last 12 months: 4 sales ($55K).
3 sales (33% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include grants and awards (34 filings), option exercises (25 filings), shares withheld for taxes (15 filings), other transactions (9 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every OABI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.