# PRIME MEDICINE INC COM

PRIME MEDICINE INC COM is a security (CUSIP 74168J101) tracked across SEC portfolio filings. 188 institutional managers reported $338.3M on Form 13F as of 2026-06-30; 14 registered fund positions totaling $28.4M via N-PORT as of 2026-05-31.

## Summary

- Issuer: PRIME MEDICINE INC
- Class: COM
- CUSIP: 74168J101
- Asset category: EC
- 13F holders: 188
- 13F value: $338.3M
- 13F period: 2026-06-30
- N-PORT fund positions: 14
- N-PORT value: $28.4M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 188 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| Alphabet Inc. | Mountain View, CA | $57.6M | 16,562,498 |
| BlackRock, Inc. | New York, NY | $29.6M | 8,501,708 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $22.4M | 6,467,872 |
| STATE STREET CORP | BOSTON, MA | $22.1M | 6,345,125 |
| ARK Investment Management LLC | St. Petersburg, FL | $21.7M | 6,246,827 |
| [Balyasny Asset Management L.P.](https://search.stillhousedata.com/firm/138111) | Chicago, IL | $14.3M | 4,123,365 |
| [Casdin Capital, LLC](https://search.stillhousedata.com/firm/169579) | New York, NY | $11.0M | 3,167,175 |
| [Woodline Partners LP](https://search.stillhousedata.com/firm/301480) | San Francisco, CA | $10.5M | 3,003,313 |
| Nikko Asset Management Americas, Inc. | New York, NY | $10.2M | 2,940,793 |
| UBS Group AG | Zurich, V8 | $10.1M | 2,888,418 |
| MWG Management Ltd. | Washington, DC | $9.9M | 1,792,210 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $9.6M | 2,743,700 |
| Sumitomo Mitsui Trust Group, Inc. | CHIYODA-KU, TOKYO, M0 | $8.9M | 2,412,984 |
| [ADAR1 Capital Management, LLC](https://search.stillhousedata.com/firm/299694) | AUSTIN, TX | $6.9M | 1,973,282 |
| MWG Caph Ltd | WASHINGTON, DC | $6.2M | 1,792,210 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| ARK Venture Fund | ARK Venture Fund | $8.8M | 101.95% |
| [T. Rowe Price Small-Cap Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002121) | T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | $5.3M | 5.73% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $4.4M | 0.53% |
| [T. Rowe Price Small-Cap Stock Fund, Inc.](https://search.stillhousedata.com/fund/S000002120) | T. ROWE PRICE SMALL-CAP STOCK FUND, INC. | $4.2M | 5.27% |
| [T. Rowe Price Institutional Small-Cap Stock Fund](https://search.stillhousedata.com/fund/S000002094) | T. Rowe Price Equity Funds, Inc. | $2.7M | 6.29% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $1.9M | 1.07% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $586K | 1.22% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $196K | 0.03% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $160K | 0.05% |
| [T. Rowe Price Spectrum Moderate Growth Allocation Fund](https://search.stillhousedata.com/fund/S000002138) | T. ROWE PRICE SPECTRUM FUNDS II, INC. | $146K | 0.34% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $52K | 1.23% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $16K | 0.05% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $4K | 0.03% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $1K | 0.00% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/74168J101.md)
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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.