# CARIBOU BIOSCIENCES INC COM

CARIBOU BIOSCIENCES INC COM is a security (CUSIP 142038108) tracked across SEC portfolio filings. 138 institutional managers reported $65.1M on Form 13F as of 2026-06-30; 9 registered fund positions totaling $5.4M via N-PORT as of 2026-05-31.

## Summary

- Issuer: CARIBOU BIOSCIENCES INC
- Class: COM
- CUSIP: 142038108
- Asset category: EC
- 13F holders: 138
- 13F value: $65.1M
- 13F period: 2026-06-30
- N-PORT fund positions: 9
- N-PORT value: $5.4M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 138 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| Pfizer Inc | New York, NY | $8.3M | 4,690,431 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $6.8M | 4,304,198 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $4.9M | 2,590,497 |
| [Kynam Capital Management, LP](https://search.stillhousedata.com/firm/314368) | PRINCETON, NJ | $4.8M | 2,503,302 |
| BlackRock, Inc. | New York, NY | $4.1M | 2,143,085 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $3.3M | 1,759,934 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $2.5M | 1,297,167 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $2.3M | 1,205,668 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $2.0M | 1,074,421 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $2.0M | 836,903 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $1.9M | 1,017,959 |
| PFM Health Sciences, LP | San Francisco, CA | $1.8M | 957,787 |
| [MACKENZIE FINANCIAL CORP](https://search.stillhousedata.com/firm/110338) | TORONTO ONTARIO, A6 | $1.8M | 942,786 |
| FMR LLC | BOSTON, MA | $1.4M | 723,959 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $1.3M | 673,200 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| abrdn Life Sciences Investors | abrdn Life Sciences Investors | $2.3M | 41.08% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $1.8M | 0.22% |
| [BRUCE FUND](https://search.stillhousedata.com/fund/S000011411) | Bruce Fund, Inc. | $950K | 26.24% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $118K | 0.04% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $101K | 0.14% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $96K | 0.02% |
| [Invesco NASDAQ Future Gen 200 ETF](https://search.stillhousedata.com/fund/S000077288) | Invesco Exchange-Traded Fund Trust II | $95K | 50.48% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $34K | 0.09% |
| Weiss Strategic Interval Fund | Weiss Strategic Interval Fund | $-91K | -1.76% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/142038108.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.