RENAISSANCE TECHNOLOGIES LLC

Position in CRBU — Caribou Biosciences, Inc.

CIK 1037389 NEW YORK, NY

Position in CRBU

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$4,921,944

+$2,314,572 QoQ

Shares Held

2,590,497

+58.0% QoQ

Ownership

2.61%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

of 137 holders

Holding Since

Dec 2021

11 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

RENAISSANCE TECHNOLOGIES LLC holds $3,447,997,584 across 326 Biotechnology names. CRBU ranks #84 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EXEL	Exelixis, Inc.	13,726,993	$588,750,729
2	INCY	Incyte Corp	3,651,532	$343,682,191
3	CORT	Corcept Therapeutics Inc	5,682,783	$229,072,982
4	VRTX	Vertex Pharmaceuticals Inc / Ma	421,688	$188,300,559
5	JAZZ	Jazz Pharmaceuticals plc	819,374	$154,902,654
6	GMAB	Genmab A/S	4,414,550	$118,442,376
7	INVA	Innoviva, Inc.	4,055,632	$94,496,225
8	ARWR	Arrowhead Pharmaceuticals, Inc.	1,036,495	$64,988,236

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$4,921,944	2,590,497	+58.0%	Shares	Sole	2026-05-14
2025-12-31	$2,607,372	1,639,857	+110.1%	Shares	Sole	2026-02-12
2025-09-30	$1,818,380	780,421	+46.7%	Shares	Sole	2025-11-13
2025-06-30	$670,472	532,121	-10.4%	Shares	Sole	2025-08-13
2024-09-30	$1,164,632	594,200	-59.9%	Shares	Sole	2024-11-13
2024-06-30	$2,431,956	1,482,900	+4476.9%	Shares	Sole	2024-08-09
2023-12-31	$185,652	32,400	-58.3%	Shares	Sole	2024-02-13
2023-03-31	$412,587	77,700	-67.5%	Shares	Sole	2023-05-12
2022-06-30	$1,297,770	239,000	+64.7%	Shares	Sole	2022-08-12
2022-03-31	$1,332,018	145,100	+51.2%	Shares	Sole	2022-05-13
2021-12-31	$1,447,870	95,949	—	Shares	Sole	2022-02-11
No filing history on record for this holder in this stock.