ANAPTYSBIO, INC ANAB
CIK 0001370053 · CUSIP 032724106
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | EcoR1 Capital, LLC CIK 1587114 · View history | $146.49M 7,880,094 shares | 8.70% | +6.65K(+0.10%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 02 | First Light Asset Management, LLC CIK 1600004 · View history | $86.14M 4,633,602 shares | 9.84% | +3.76M(+433.30%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 03 | Point72 Asset Management, L.P. CIK 1603466 · Amended · View history | $44.03M 2,368,370 shares | 0.12% | +2.37MNew | SEC filing ↗ Jul 21, 2025 | ▾ |
| 04 | BlackRock, Inc. CIK 2012383 · View history | $40.46M 2,176,598 shares | 0.00% | -371.87K(-14.60%)Reduced | SEC filing ↗ May 2, 2025 | ▾ |
| 05 | FMR LLC CIK 315066 · View history | $35.42M 1,905,154 shares | 0.00% | -1.13M(-37.10%)Reduced | SEC filing ↗ May 12, 2025 | ▾ |
| 06 | TANG CAPITAL MANAGEMENT LLC CIK 1232621 · View history | $28.72M 1,545,153 shares | 1.59% | +214.27K(+16.10%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 07 | VANGUARD GROUP INC CIK 102909 · View history | $28.21M 1,517,325 shares | 0.00% | -326.42K(-17.70%)Reduced | SEC filing ↗ May 9, 2025 | ▾ |
| 08 | Boxer Capital Management, LLC CIK 2018299 · Amended · View history | $24.17M 1,300,000 shares | 7.27% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2025 | ▾ |
| 09 | Sofinnova Investments, Inc. CIK 1631134 · View history | $21.57M 1,160,033 shares | 1.63% | +1.03M(+772.70%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 10 | BANK OF AMERICA CORP /DE/ CIK 70858 · View history | $21.27M 1,143,959 shares | 0.00% | +1.13M(+6,273.40%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 11 | CITIGROUP INC CIK 831001 · View history | $19.91M 1,071,247 shares | 0.02% | +1.02M(+1,892.00%)Added | SEC filing ↗ May 12, 2025 | ▾ |
| 12 | Palo Alto Investors LP CIK 1306923 · View history | $18.98M 1,020,713 shares | 3.61% | +176.74K(+20.90%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 13 | PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history | $17.01M 915,081 shares | 0.00% | -9.93K(-1.10%)Reduced | SEC filing ↗ May 14, 2025 | ▾ |
| 14 | STATE STREET CORP CIK 93751 · View history | $16.00M 860,723 shares | 0.00% | -425.03K(-33.10%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 15 | Sanofi CIK 1121404 · View history | $15.28M 821,917 shares | 9.21% | 0(0.00%)Unchanged | SEC filing ↗ May 6, 2025 | ▾ |
| 16 | Woodline Partners LP CIK 1784547 · View history | $14.71M 791,023 shares | 0.10% | +305.95K(+63.10%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 17 | Camber Capital Management LP CIK 1444043 · View history | $13.94M 750,000 shares | 0.87% | -500.00K(-40.00%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 18 | MORGAN STANLEY CIK 895421 · View history | $9.38M 504,636 shares | 0.00% | +288.72K(+133.70%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 19 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $9.13M 491,167 shares | 0.00% | +4.57K(+0.90%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 20 | UBS Group AG CIK 1610520 · View history | $9.11M 490,273 shares | 0.00% | +453.67K(+1,239.30%)Added | SEC filing ↗ May 13, 2025 | ▾ |
Showing 20 / 154 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 154 reporting institutions.
This page includes 20 of 154 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 154 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"032724106","quarter":"2025Q1","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.