AllianceBernstein’s Korro Bio KRRO Stock Holding History

AllianceBernstein’s Portfolio KRRO Stock Details KRRO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$138K	Buy	+12,180	New	+$151K	﹤0.01%	3224
2025 Q4	–	Sell	-7,700	Closed	-$369K	–	3266
2025 Q3	$369K	Buy	+7,700	New	+$171K	﹤0.01%	2845
2025 Q2	–	Sell	-680,517	Closed	-$11.8M	–	3279
2025 Q1	$11.8M	Sell	680,517 -25,277	-4%	-$749K	﹤0.01%	1083
2024 Q4	$26.9M	Buy	+705,794	New	+$36.3M	0.01%	816
2022 Q2	–	Sell	-676	Closed	-$72K	–	3326
2022 Q1	$72K	Sell	676 -66	-9%	-$12.6K	﹤0.01%	3141
2021 Q4	$190K	Sell	742 -50	-6%	-$15.2K	﹤0.01%	3083
2021 Q3	$280K	Hold	792	–	–	﹤0.01%	2977
2021 Q2	$394K	Buy	792 +96	+14%	+$46.9K	﹤0.01%	2911
2021 Q1	$331K	Buy	696 +76	+12%	+$148K	﹤0.01%	2855
2020 Q4	$1.09M	Sell	620 -44	-7%	-$58.1K	﹤0.01%	2254
2020 Q3	$638K	Sell	664 -26	-4%	-$27.9K	﹤0.01%	2403
2020 Q2	$802K	Buy	+690	New	+$623K	﹤0.01%	2314

Other funds holding KRRO

LCM

Lynx1 Capital Management San Juan, Puerto Rico $866M AUM 231.68% 1-Year Est. Return

NMC

NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return

VR Adviser New York $3.3B AUM 525.74% 1-Year Est. Return

AVLSA

Atlas Venture Life Science Advisors Cambridge, Massachusetts $881M AUM 160.77% 1-Year Est. Return

Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

AAA

Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return

NCM

Nantahala Capital Management New Canaan, Connecticut $3.01B AUM 119.46% 1-Year Est. Return

Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

ACM

ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return

AllianceBernstein's KRRO Position: Q2 2026 in Review

AllianceBernstein opened a new position in Korro Bio (KRRO) in Q2 2026: 12,180 shares worth $138K. The stake represents ﹤0.01% of the portfolio and ranks #3224 among its holdings. This is a return to the name: AllianceBernstein previously reported a position in KRRO as recently as Q3 2025.

AllianceBernstein first reported a position in KRRO in Q2 2020 and has held it in 12 quarters since. The position peaked at $26.9M in Q4 2024. 106 funds tracked by Wall St. Rank hold KRRO as of Q2 2026.

AllianceBernstein held 12,180 shares of Korro Bio worth $138K as of Q2 2026.
Korro Bio was a new AllianceBernstein position in Q2 2026.
Korro Bio made up ﹤0.01% of AllianceBernstein's portfolio in Q2 2026, its #3224 holding.
AllianceBernstein first reported a position in Korro Bio in Q2 2020 and has held it in 12 quarters since.
AllianceBernstein's Korro Bio position peaked at $26.9M in Q4 2024.
106 funds tracked by Wall St. Rank held Korro Bio as of Q2 2026.

Based on AllianceBernstein's 13F filing for Q2 2026, filed 14 Aug 2026.