XTX Topco Ltd

Position in CRBU — Caribou Biosciences, Inc.

CIK 1828301 LONDON, X0

Position in CRBU

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$473,716

-$140,875 QoQ

Shares Held

269,157

-16.8% QoQ

Ownership

0.251%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#31

of 137 holders

Holding Since

Dec 2022

10 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

XTX Topco Ltd holds $413,140,824 across 381 Biotechnology names. CRBU ranks #182 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	REGN	Regeneron Pharmaceuticals, Inc.	30,522	$19,031,687
2	ASND	Ascendis Pharma A/S	43,289	$11,546,042
3	BBIO	BridgeBio Pharma, Inc.	116,611	$8,685,187
4	MRNA	Moderna, Inc.	123,281	$8,633,368
5	JAZZ	Jazz Pharmaceuticals plc	30,496	$7,348,621
6	KYMR	Kymera Therapeutics, Inc.	61,501	$7,052,319
7	CYTK	Cytokinetics Inc	80,743	$6,878,496
8	PTCT	Ptc Therapeutics, Inc.	81,923	$6,682,459

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$473,716	269,157	-16.8%	Shares	Defined	2026-08-14
2026-03-31	$614,591	323,469	-21.8%	Shares	Defined	2026-05-15
2025-12-31	$657,274	413,380	-6.4%	Shares	Defined	2026-02-17
2025-09-30	$1,028,790	441,541	+319.6%	Shares	Defined	2025-11-14
2025-06-30	$132,593	105,233	+3.6%	Shares	Defined	2025-08-12
2024-09-30	$199,008	101,535	-51.2%	Shares	Defined	2024-11-14
2024-06-30	$341,385	208,162	+1238.4%	Shares	Defined	2024-08-12
2023-06-30	$66,100	15,553	+1.4%	Shares	Defined	2023-08-14
2023-03-31	$81,476	15,344	-41.9%	Shares	Defined	2023-05-12
2022-12-31	$165,930	26,422	—	Shares	Defined	2023-02-14
No filing history on record for this holder in this stock.