CRBU — CARIBOU BIOSCIENCES INC

Ownership history in PFIZER INC  ·  5 quarters on record

This page tracks every 13F SEC filing in which PFIZER INC reported a position in CARIBOU BIOSCIENCES INC (CRBU). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
3.15% (2025 Q4)
Avg. % of fund
1.56%
First filed
2024 Q4
Last filed
2025 Q4
Quarters held
5
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 UNCHANGED 4,690,431 — 0% 3.15% $7.5M $1.59
2025 Q3 UNCHANGED 4,690,431 — 0% 2.50% $10.9M $2.33
2025 Q2 UNCHANGED 4,690,431 — 0% 1.03% $5.9M $1.26
2025 Q1 UNCHANGED 4,690,431 — 0% 0.86% $4.28B $0.91
1 older quarter hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    CRBU price (monthly, adj. close)

Other funds also holding CRBU

As of 2025 Q4 — sorted by position size

72 Investment Holdings, LLC 3Y 1.49% Green Alpha Advisors, LLC 3Y 0.55% Kynam Capital Management, LP 3Y 0.25% NANO CAP NEW MILLENNIUM GROWTH FUND L P 0.15% PFM Health Sciences, LP 3Y 7Y 0.15% Bruce & Co., Inc. 3Y 7Y 0.12% MILESTONE ASSET MANAGEMENT, LLC 3Y 0.07% GSA CAPITAL PARTNERS LLP 3Y 7Y 0.05% XTX Topco Ltd 3Y 0.02% MAVERICK CAPITAL LTD 3Y 7Y 0.01%
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