# ANAPTYSBIO INC COM

ANAPTYSBIO INC COM is a security (CUSIP 032724106) tracked across SEC portfolio filings. 208 institutional managers reported $1.5B on Form 13F as of 2026-06-30; 20 registered fund positions totaling $40.9M via N-PORT as of 2026-05-31.

## Summary

- Issuer: ANAPTYSBIO INC
- Class: COM
- CUSIP: 032724106
- Asset category: EC
- 13F holders: 208
- 13F value: $1.5B
- 13F period: 2026-06-30
- N-PORT fund positions: 20
- N-PORT value: $40.9M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 208 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [EcoR1 Capital, LLC](https://search.stillhousedata.com/firm/167121) | San Francisco, CA | $437.0M | 7,880,094 |
| BlackRock, Inc. | New York, NY | $93.2M | 1,681,380 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $74.9M | 1,544,037 |
| TANG CAPITAL MANAGEMENT LLC | SAN DIEGO, CA | $73.8M | 1,330,879 |
| Sanofi | Paris, I0 | $55.5M | 821,917 |
| MORGAN STANLEY | NEW YORK, NY | $55.1M | 993,905 |
| STATE STREET CORP | BOSTON, MA | $55.0M | 992,445 |
| [Affinity Asset Advisors, LLC](https://search.stillhousedata.com/firm/312788) | New York, NY | $52.1M | 940,000 |
| [Palo Alto Investors LP](https://search.stillhousedata.com/firm/109171) | PALO ALTO, CA | $35.4M | 638,161 |
| [683 Capital Management, LLC](https://search.stillhousedata.com/firm/156181) | NEW YORK, NY | $34.7M | 625,000 |
| D. E. Shaw & Co., Inc. | New York, NY | $32.1M | 579,296 |
| [First Light Asset Management, LLC](https://search.stillhousedata.com/firm/168899) | Edina, MN | $31.4M | 565,431 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $28.9M | 520,241 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $27.8M | 501,086 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $27.3M | 492,120 |

## Top fund holders (N-PORT)

_Showing 15 of 20 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $12.1M | 1.49% |
| [VANGUARD STRATEGIC EQUITY FUND](https://search.stillhousedata.com/fund/S000002593) | VANGUARD HORIZON FUNDS | $9.5M | 9.36% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $6.5M | 2.97% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $5.2M | 2.98% |
| [VANGUARD U.S. MOMENTUM FACTOR ETF](https://search.stillhousedata.com/fund/S000061302) | VANGUARD WELLINGTON FUND | $2.3M | 12.36% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $1.6M | 3.37% |
| [VANGUARD GROWTH AND INCOME FUND](https://search.stillhousedata.com/fund/S000002913) | VANGUARD QUANTITATIVE FUNDS | $666K | 0.40% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $618K | 0.10% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $487K | 0.45% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $479K | 0.16% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $431K | 4.37% |
| [Victory RS Small Cap Growth Equity VIP Series](https://search.stillhousedata.com/fund/S000053585) | Victory Variable Insurance Funds | $400K | 74.53% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $277K | 0.77% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $142K | 3.38% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $86K | 0.62% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/032724106.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.