AnaptysBio Ownership | Who Owns AnaptysBio?
AnaptysBio Ownership Summary
AnaptysBio is owned by 22.77% institutional investors, 5.74% insiders, and 71.48% retail investors. Ecor1 capital is the largest institutional shareholder, holding 28.36% of ANAB shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.39% of its assets in AnaptysBio shares.
ANAB Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | AnaptysBio | 22.77% | 5.74% | 71.48% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Biotech Stocks | 35.75% | 11.83% | 52.41% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Ecor1 capital | 7.88M | 28.36% | $437.03M |
| Blackrock | 1.77M | 6.47% | $44.35M |
| Blackrock funding, inc. /de | 1.68M | 6.05% | $93.25M |
| Vanguard group | 1.54M | 5.31% | $74.85M |
| Tang capital management | 1.33M | 4.79% | $73.81M |
| Boxer capital | 1.30M | 4.75% | $32.58M |
| Morgan stanley | 993.90K | 3.58% | $55.12M |
| State street | 992.45K | 3.57% | $55.04M |
| Affinity asset advisors | 940.00K | 3.38% | $52.13M |
| Sanofi | 821.92K | 2.96% | $30.38M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Ecor1 capital | 7.88M | 18.55% | $437.03M |
| Sanofi | 821.92K | 9.04% | $30.38M |
| Palo alto investors lp | 638.16K | 5.41% | $35.39M |
| Tang capital management | 1.33M | 3.75% | $73.81M |
| First light asset management | 565.43K | 2.81% | $31.36M |
| Affinity asset advisors | 940.00K | 2.69% | $52.13M |
| Highmark wealth management | 94.05K | 2.12% | $5.22M |
| Apis capital advisors | 238.00K | 2.04% | $13.20M |
| Synergy asset management | 317.11K | 1.87% | $17.59M |
| 683 capital management | 625.00K | 1.81% | $34.66M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Affinity asset advisors | 940.00K | 2.69% | 495.31K |
| Fmr | 472.70K | 0.00% | 445.60K |
| Synergy asset management | 317.11K | 1.87% | 317.11K |
| Apis capital advisors | 238.00K | 2.04% | 238.00K |
| Two sigma investments, lp | 465.08K | 0.02% | 208.45K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Point72 asset management | 55.30K | 0.00% | -1.88M |
| Fairmount funds management | - | - | -1.82M |
| Frazier life sciences management | - | - | -1.57M |
| Assenagon asset management | - | - | -839.93K |
| Camber capital management lp | 125.00K | 0.26% | -625.00K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Synergy asset management | 317.11K | 1.87% | 317.11K | $17.59M |
| Apis capital advisors | 238.00K | 2.04% | 238.00K | $13.20M |
| Lmr partners llp | 140.72K | 0.02% | 140.72K | $1.86M |
| Vanguard fiduciary trust | 135.08K | 0.00% | 135.08K | $7.49M |
| Hsbc | 125.72K | 0.00% | 125.72K | $7.14M |
Sold Out
| Holder | Change |
|---|---|
| Nelson, van denburg & campbell wealth management group | -4.00 |
| Northwestern mutual wealth management | -7.00 |
| Srs capital advisors | -8.00 |
| Montag a & associates | -9.00 |
| Riverview trust | -13.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 82 | -55.19% | 4,219,141 | -85.63% | 22 | 0.22% | 42 | -52.81% | 22 | -65.08% |
| Dec 31, 2025 | 36 | -79.55% | 1,861,311 | -94.12% | 6 | 0.05% | 17 | -77.63% | 10 | -83.61% |
| Sep 30, 2025 | 56 | -63.16% | 4,268,326 | -88.39% | 14 | 0.09% | 20 | -72.60% | 23 | -56.60% |
| Jun 30, 2025 | 151 | -3.82% | 36,769,517 | -7.97% | 127 | 0.75% | 73 | -13.10% | 52 | 13.04% |
| Mar 31, 2025 | 12 | -92.26% | 7,471,731 | -78.90% | 24 | 0.16% | 7 | -91.36% | 4 | -88.57% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 733.95K | 2.39% | 129.10K |
| Vanguard Total Stock Mkt Idx Inv | 640.05K | 2.20% | 25.50K |
| Fidelity Small Cap Growth | 625.15K | 2.13% | - |
| State Street® SPDR® S&P® Biotech ETF | 564.45K | 1.94% | -5.65K |
| FIAM Small Cap Core Composite | 460.10K | 1.57% | -11.00K |
| iShares Russell 2000 ETF | 437.11K | 1.50% | 3.67K |
| US Small-Cap Growth II Equity Comp | 440.07K | 1.50% | -105.21K |
| T. Rowe Price New Horizons | 371.08K | 1.33% | -68.99K |
| SPDR® S&P Biotech ETF | 326.85K | 1.17% | 730.00 |
| FIAM Small Cap Core CIT Cl B | 341.50K | 1.16% | -118.60K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 30, 2026 | Schmid John P. | - | Sell | $29.96K |
| Mar 30, 2026 | Schmid John P. | - | Sell | $426.78K |
| Mar 30, 2026 | Schmid John P. | - | Sell | $701.71K |
| Mar 27, 2026 | Faga Daniel | President, CEO | Sell | $28.87K |
| Mar 27, 2026 | Faga Daniel | President, CEO | Sell | $148.82K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | - |
| 2026 Q1 | - | 31 |
| 2025 Q4 | - | 10 |
| 2025 Q3 | - | 5 |
| 2025 Q2 | - | 2 |
ANAB Ownership FAQ
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