OmniAb Ownership | Who Owns OmniAb?
OmniAb Ownership Summary
OmniAb is owned by 51.81% institutional investors, 11.40% insiders, and 36.79% retail investors. Whitefort capital management, lp is the largest institutional shareholder, holding 9.65% of OABI shares. Janus Henderson US SMID Cap Growth MA is the top mutual fund, with 3.97% of its assets in OmniAb shares.
OABI Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | OmniAb | 51.81% | 11.40% | 36.79% |
| Sector | Healthcare Stocks | 486.50% | 11.08% | -397.59% |
| Industry | Biotech Stocks | 304.14% | 11.08% | -215.23% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Whitefort capital management, lp | 10.24M | 9.65% | $17.82M |
| Blackrock funding, inc. /de | 7.00M | 6.60% | $12.18M |
| Rice hall james & associates | 2.63M | 2.48% | $4.57M |
| Royce & associates lp | 867.08K | 0.82% | $1.51M |
| Woodstock | 621.68K | 0.59% | $1.08M |
| Isthmus partners | 568.04K | 0.54% | $988.39K |
| Murchinson | 502.81K | 0.47% | $874.89K |
| Marshall wace, llp | 359.67K | 0.34% | $625.82K |
| Adar1 capital management | 326.11K | 0.31% | $567.43K |
| Tang capital management | 300.00K | 0.28% | $522.00K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Whitefort capital management, lp | 10.24M | 5.23% | $17.82M |
| Tls advisors | 250.19K | 1.36% | $435.00K |
| Murchinson | 502.81K | 0.31% | $874.89K |
| Rice hall james & associates | 2.63M | 0.25% | $4.57M |
| Isthmus partners | 568.04K | 0.12% | $988.39K |
| Woodstock | 621.68K | 0.10% | $1.08M |
| Adar1 capital management | 326.11K | 0.09% | $567.43K |
| Tang capital management | 300.00K | 0.03% | $522.00K |
| Mirabella financial services llp | 100.38K | 0.02% | $174.66K |
| Royce & associates lp | 867.08K | 0.02% | $1.51M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Whitefort capital management, lp | 10.24M | 5.23% | 6.33M |
| Marshall wace, llp | 359.67K | 0.00% | 359.67K |
| Adar1 capital management | 326.11K | 0.09% | 200.00K |
| Isthmus partners | 568.04K | 0.12% | 99.34K |
| Xtx topco | 137.17K | 0.01% | 83.69K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Janus henderson group | - | - | -8.06M |
| Macquarie group | - | - | -4.42M |
| Rubric capital management lp | - | - | -2.85M |
| Chicago capital | - | - | -2.62M |
| Villere st denis j | - | - | -1.44M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Marshall wace, llp | 359.67K | 0.00% | 359.67K | $625.82K |
| Brevan howard capital management lp | 53.78K | 0.00% | 53.78K | $93.58K |
| Point72 asia (singapore) pte. | 41.64K | 0.01% | 41.64K | $72.45K |
| Dynamic technology lab private | 12.56K | 0.00% | 12.56K | $22.00K |
| Colony group | 12.34K | - | 12.34K | $21.48K |
Sold Out
| Holder | Change |
|---|---|
| Assetmark | -4.00 |
| Mather group, llc. | -21.00 |
| Jones financial companies lllp | -24.00 |
| Rothschild investment | -40.00 |
| True wealth design | -42.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 141 | -7.24% | 54,994,766 | -13.22% | 51 | 1.44% | 79 | 29.51% | 30 | -41.18% |
| Mar 31, 2025 | 152 | -5.59% | 63,371,495 | 3.18% | 59 | 1.67% | 61 | -10.29% | 51 | 18.60% |
| Dec 31, 2024 | 165 | - | 63,556,417 | -20.24% | 62 | 1.02% | 70 | 7.69% | 44 | -2.22% |
| Sep 30, 2024 | 165 | 0.61% | 79,686,167 | 0.70% | 77 | 1.28% | 65 | -8.45% | 45 | -11.76% |
| Jun 30, 2024 | 164 | 3.14% | 79,130,831 | -5.42% | 77 | 1.13% | 71 | 20.34% | 51 | -1.92% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Janus Henderson US SMID Cap Growth MA | 4.82M | 3.97% | 4.82M |
| Janus Henderson US SMID Cap Growth | 4.75M | 3.88% | -75.59K |
| Delaware Small Cap Core I | 3.64M | 3.08% | 757.47K |
| Janus Henderson Triton D | 2.76M | 2.26% | -398.93K |
| Vanguard US Total Market Shares ETF | 2.59M | 2.12% | - |
| Vanguard Total Stock Mkt Idx Inv | 2.59M | 2.11% | -57.02K |
| iShares Russell 2000 ETF | 2.29M | 1.87% | -43.58K |
| Janus Henderson US Small Cap Growth MA | 2.16M | 1.77% | 2.16M |
| Janus Henderson US Small Cap Growth | 2.16M | 1.76% | 1.06K |
| Janus Henderson Venture D | 1.26M | 1.03% | -181.18K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 15, 2025 | Cochran Jennifer R. | - | Buy | $45.60K |
| May 14, 2025 | Love Steven | - | Buy | $36.50K |
| May 12, 2025 | HIGGINS JOHN L | - | Buy | $93.60K |
| Apr 07, 2025 | FOEHR MATTHEW W | President and CEO | Sell | $38.76K |
| Apr 07, 2025 | Berkman Charles S | Chief Legal Officer | Sell | $14.41K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q2 | 3 | 4 |
| 2025 Q1 | 2 | 8 |
| 2024 Q4 | - | 3 |
| 2024 Q3 | - | - |
| 2024 Q2 | 1 | 3 |
OABI Ownership FAQ
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