Skip to main content

GROUP ONE TRADING LLC

Position in CRBU — Caribou Biosciences, Inc.

CIK 932540 CHICAGO, IL

Position in CRBU

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$9,532
-$4,643 QoQ
Shares Held
5,416
-11.0% QoQ
Ownership
0.005%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#110
of 137 holders
Holding Since
Jun 2022
12 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

GROUP ONE TRADING LLC holds $113,693,049 across 200 Biotechnology names. CRBU ranks #128 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CRBU

Export CSV
12 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $9,532 5,416
2025-09-30 $14,175 6,084
2025-06-30 $32,652 25,915
2025-03-31 $21,286 23,315
2024-09-30 $13,182 6,726
2024-06-30 $5,197 3,169
2023-09-30 $3,561 745
2023-06-30 $3,825 900
2023-03-31 $4,779 900
2022-12-31 $14,444 2,300
2022-09-30 $30,595 2,900
2022-06-30 $14,661 2,700