Skip to main content

Bruce & Co., Inc.

Position in CRBU — Caribou Biosciences, Inc.

CIK 1358331 CHICAGO, IL

Position in CRBU

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$440,000
-$35,000 QoQ
Shares Held
250,000
0.0% QoQ
Ownership
0.233%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
#32
of 137 holders
Holding Since
Mar 2023
14 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CRBU Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Bruce & Co., Inc. holds $9,591,017 across 4 Biotechnology names. CRBU ranks #4 (4.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 CRBU
Caribou Biosciences, Inc.
This page
250,000 $440,000

All Filings in CRBU

Export CSV
14 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $440,000 250,000
2026-03-31 $475,000 250,000
2025-12-31 $397,500 250,000
2025-09-30 $582,500 250,000
2025-06-30 $315,000 250,000
2025-03-31 $228,250 250,000
2024-12-31 $397,500 250,000
2024-09-30 $588,000 300,000
2024-06-30 $492,000 300,000
2024-03-31 $1,028,000 200,000
2023-12-31 $1,146,000 200,000
2023-09-30 $956,000 200,000
2023-06-30 $850,000 200,000
2023-03-31 $531,000 100,000