STATE STREET CORP

Position in KRRO — Korro Bio, Inc.

CIK 93751 BOSTON, MA

Position in KRRO

as of Jun 30, 2026 · filed Aug 7, 2026 Compact

Position Value

$3,065,496

+$1,476,836 QoQ

Shares Held

232,587

+65.7% QoQ

Ownership

1.58%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#19

of 106 holders

Holding Since

Dec 2023

11 quarters on record

Voting authority Sole 30% Shared 0% None 70%

Healthcare · as of Jun 30, 2026

STATE STREET CORP holds $36,552,510,511 across 411 Biotechnology names. KRRO ranks #248 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	11,871,459	$5,896,909,829
2	REGN	Regeneron Pharmaceuticals, Inc.	4,834,688	$3,014,621,355
3	INCY	Incyte Corp	9,722,336	$1,102,124,008
4	MRNA	Moderna, Inc.	15,726,193	$1,101,305,295
5	ALNY	Alnylam Pharmaceuticals, Inc.	3,555,689	$1,070,369,059
6	RVMD	Revolution Medicines, Inc.	4,897,051	$917,119,711
7	RPRX	Royalty Pharma plc	12,338,229	$691,804,500
8	INSM	INSMED Inc	6,052,174	$645,282,791

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$3,065,496	232,587	+65.7%	Shares	Defined	2026-08-07
2026-03-31	$1,588,660	140,341	-4.0%	Shares	Defined	2026-05-15
2025-12-31	$1,171,230	146,221	+17.4%	Shares	Defined	2026-02-13
2025-09-30	$5,965,609	124,569	+2.2%	Shares	Defined	2025-11-14
2025-06-30	$1,523,030	121,940	-0.4%	Shares	Defined	2025-08-14
2025-03-31	$2,131,645	122,438	-1.3%	Shares	Defined	2025-05-15
2024-12-31	$4,723,687	124,079	+4.5%	Shares	Defined	2025-02-14
2024-09-30	$3,969,126	118,765	+18.9%	Shares	Defined	2024-11-14
2024-06-30	$3,383,206	99,888	+451.9%	Shares	Defined	2024-08-14
2024-03-31	$1,629,000	18,100	+223.2%	Shares	Defined	2024-05-15
2023-12-31	$268,408	5,600	—	Shares	Defined	2024-02-14
No filing history on record for this holder in this stock.