OmniAb, Inc.
Total Trades
58
Buys
20
Sells
19
Largest Trade
N/A
Insiders
8
Institutional Funds
102
Inst. Value
$1M+
Activist Filings
23
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Berkman Charles S | Chief Legal Officer | SELL | $15K–$50K | 10K | $1.71 | Feb 18, 2026 |
| Berkman Charles S | Chief Legal Officer | EXERCISE | N/A | 19K | — | Feb 18, 2026 |
| GUSTAFSON KURT A | Executive VP | EXERCISE | N/A | 19K | — | Feb 18, 2026 |
| GUSTAFSON KURT A | Executive VP | SELL | $15K–$50K | 9K | $1.71 | Feb 18, 2026 |
| FOEHR MATTHEW W | President and CEO | SELL | $50K–$100K | 31K | $1.71 | Feb 18, 2026 |
| FOEHR MATTHEW W | President and CEO | EXERCISE | N/A | 58K | — | Feb 18, 2026 |
| Berkman Charles S | Chief Legal Officer | SELL | $15K–$50K | 8K | $1.96 | Dec 9, 2025 |
| Berkman Charles S | Chief Legal Officer | EXERCISE | N/A | 16K | — | Dec 9, 2025 |
| GUSTAFSON KURT A | Executive VP | SELL | $15K–$50K | 24K | $1.96 | Dec 9, 2025 |
| GUSTAFSON KURT A | Executive VP | EXERCISE | N/A | 47K | — | Dec 9, 2025 |
| FOEHR MATTHEW W | President and CEO | SELL | $15K–$50K | 14K | $1.96 | Dec 9, 2025 |
| FOEHR MATTHEW W | President and CEO | EXERCISE | N/A | 27K | — | Dec 9, 2025 |
| HIGGINS JOHN L | Director | BUY | $100K–$500K | 77K | $1.39 | Nov 10, 2025 |
| Cochran Jennifer R. | Director | BUY | $15K–$50K | 30K | $1.52 | May 15, 2025 |
| Love Steven | Director | BUY | $15K–$50K | 25K | $1.46 | May 14, 2025 |
| HIGGINS JOHN L | Director | BUY | $50K–$100K | 65K | $1.44 | May 13, 2025 |
| FOEHR MATTHEW W | President and CEO | EXERCISE | N/A | 36K | — | Apr 8, 2025 |
| FOEHR MATTHEW W | President and CEO | SELL | $15K–$50K | 19K | $2.00 | Apr 8, 2025 |
| Berkman Charles S | Chief Legal Officer | SELL | $1K–$15K | 7K | $2.00 | Apr 8, 2025 |
| Berkman Charles S | Chief Legal Officer | EXERCISE | N/A | 14K | — | Apr 8, 2025 |
| GUSTAFSON KURT A | Executive VP | SELL | $1K–$15K | 7K | $2.00 | Apr 8, 2025 |
| GUSTAFSON KURT A | Executive VP | EXERCISE | N/A | 14K | — | Apr 8, 2025 |
| GUSTAFSON KURT A | Executive VP | EXERCISE | N/A | 23K | — | Apr 2, 2025 |
| GUSTAFSON KURT A | Executive VP | SELL | $15K–$50K | 12K | $2.37 | Apr 2, 2025 |
| HIGGINS JOHN L | Director | BUY | $1K–$15K | 4K | $2.28 | Mar 21, 2025 |
| HIGGINS JOHN L | Director | BUY | $100K–$500K | 126K | $2.35 | Mar 21, 2025 |
| Berkman Charles S | Chief Legal Officer | SELL | $50K–$100K | 25K | $3.24 | Jan 22, 2025 |
| Berkman Charles S | Chief Legal Officer | GRANT | N/A | 45K | — | Jan 22, 2025 |
| GUSTAFSON KURT A | Executive VP | SELL | $50K–$100K | 16K | $3.24 | Jan 22, 2025 |
| GUSTAFSON KURT A | Executive VP | GRANT | N/A | 28K | — | Jan 22, 2025 |
| FOEHR MATTHEW W | President and CEO | SELL | $100K–$500K | 42K | $3.24 | Jan 22, 2025 |
| FOEHR MATTHEW W | President and CEO | GRANT | N/A | 77K | — | Jan 22, 2025 |
| FOEHR MATTHEW W | President and CEO | BUY | $1M+ | 240K | $4.42 | May 28, 2024 |
| GUSTAFSON KURT A | Executive VP | EXERCISE | N/A | 14K | — | Apr 9, 2024 |
| GUSTAFSON KURT A | Executive VP | SELL | $15K–$50K | 7K | $5.27 | Apr 9, 2024 |
| Berkman Charles S | Chief Legal Officer | SELL | $15K–$50K | 7K | $5.27 | Apr 9, 2024 |
| Berkman Charles S | Chief Legal Officer | EXERCISE | N/A | 14K | — | Apr 9, 2024 |
| GUSTAFSON KURT A | Executive VP | EXERCISE | N/A | 23K | — | Apr 2, 2024 |
| GUSTAFSON KURT A | Executive VP | SELL | $50K–$100K | 12K | $5.46 | Apr 2, 2024 |
| FOEHR MATTHEW W | President and CEO | BUY | $1M+ | 225K | $5.19 | Mar 25, 2024 |
| FOEHR MATTHEW W | President and CEO | BUY | $100K–$500K | 95K | $4.27 | Nov 13, 2023 |
| FOEHR MATTHEW W | President and CEO | BUY | $100K–$500K | 45K | $5.48 | Aug 15, 2023 |
| FOEHR MATTHEW W | CEO | BUY | $500K+ | 115K | $4.52 | Jun 12, 2023 |
| HIGGINS JOHN L | Director | SELL | $15K–$50K | 9K | $4.05 | May 25, 2023 |
| HIGGINS JOHN L | Director | EXERCISE | $15K–$50K | 9K | $3.68 | May 25, 2023 |
| HIGGINS JOHN L | Director | SELL | $1K–$15K | 1K | $4.05 | May 23, 2023 |
| HIGGINS JOHN L | Director | EXERCISE | $1K–$15K | 1K | $3.68 | May 23, 2023 |
| HIGGINS JOHN L | Director | SELL | $100K–$500K | 50K | $3.89 | May 19, 2023 |
| HIGGINS JOHN L | Director | EXERCISE | $100K–$500K | 50K | $3.68 | May 19, 2023 |
| FOEHR MATTHEW W | CEO | BUY | $1M+ | 440K | $3.40 | May 15, 2023 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 102 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Whitefort Capital Management, LP | 14.2M | $1M+ | SH |
| CADIAN CAPITAL MANAGEMENT, LP | 4.4M | $1M+ | SH |
| PRIVATE MANAGEMENT GROUP INC | 2.4M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 2.3M | $1M+ | SH |
| STATE STREET CORP | 2.0M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 2.0M | $1M+ | SH |
| TOWERVIEW LLC | 1.0M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 966K | $1M+ | SH |
| VANGUARD GROUP INC | 724K | $1M+ | SH |
| ISTHMUS PARTNERS, LLC | 721K | $1M+ | SH |
| ADAR1 Capital Management, LLC | 702K | $1M+ | SH |
| ADAR1 Capital Management, LLC | 702K | $1M+ | SH |
| Stonepine Capital Management, LLC | 701K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 243K | $100K–$500K | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 238K | $100K–$500K | SH |
| GOLDMAN SACHS GROUP INC | 235K | $100K–$500K | SH |
| Arbiter Partners Capital Management LLC | 193K | $100K–$500K | SH |
| BARCLAYS PLC | 166K | $100K–$500K | SH |
| RHUMBLINE ADVISERS | 163K | $100K–$500K | SH |
| NOMURA HOLDINGS INC | 155K | $100K–$500K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 10, 2026
5.3%
7.6M shares
Whitefort Capital Management, LP
SC 13G/A · Nov 14, 2025
9.9%
14.2M shares
SC 13G/A · Aug 27, 2025
5.8%
8.3M shares
Whitefort Capital Management, LP
SC 13G/A · Aug 14, 2025
8.4%
10.2M shares
SC 13G/A · Aug 14, 2025
0.8%
948K shares
SC 13G · Jul 1, 2025
4.4%
5.4M shares
Whitefort Capital Management, LP
SC 13G · Jun 6, 2025
6.0%
7.3M shares
SC 13G/A · May 14, 2025
6.6%
8.1M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G/A · Nov 14, 2024
7.4%
8.8M shares
Avista Capital Partners V, L.P.
SC 13D/A · Jul 2, 2024
10.2%
12.5M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G/A · Feb 13, 2024
6.7%
7.8M shares
SC 13G · Jan 29, 2024
6.3%
7.3M shares
SC 13G/A · Mar 8, 2023
4.9%
5.6M shares
SC 13G · Mar 7, 2023
5.8%
5.8M shares
SC 13G/A · Feb 14, 2023
1.8%
6 shares
Integrated Core Strategies (US) LLC
SC 13G/A · Feb 13, 2023
2.0%
2.3M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G · Feb 13, 2023
5.7%
6.6M shares
SC 13G/A · Feb 13, 2023
0.0%
0 shares
SC 13D/A · Dec 13, 2022
0.0%
0 shares
SC 13D · Nov 14, 2022
21.5%
27.2M shares
SC 13G/A · Feb 14, 2022
6.2%
6 shares
SC 13G/A · Feb 11, 2022
7.5%
1.7M shares
OR LR.S. IDENTIFICATION NO. OF ABOVE PERSON Avista Acquisition LP II
SC 13G · Feb 11, 2022
19.7%
5.6M shares