RhumbLine Advisers’s Korro Bio KRRO Stock Holding History

RhumbLine Advisers’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 Q1	$111K	Sell	9,850 -400	-4%	-$4.4K	﹤0.01%	3364
2025 Q4	$82.1K	Buy	10,250 +907	+10%	+$21.2K	﹤0.01%	3536
2025 Q3	$447K	Sell	9,343 -168	-2%	-$3.73K	﹤0.01%	2768
2025 Q2	$119K	Buy	9,511 +442	+5%	+$6.37K	﹤0.01%	3473
2025 Q1	$158K	Sell	9,069 -533	-6%	-$15.8K	﹤0.01%	3221
2024 Q4	$366K	Buy	9,602 +691	+8%	+$35.5K	﹤0.01%	2867
2024 Q3	$298K	Buy	8,911 +684	+8%	+$28.8K	﹤0.01%	3029
2024 Q2	$279K	Buy	+8,227	New	+$455K	﹤0.01%	3043
2023 Q3	–	Sell	-21	Closed	-$366	–	4337
2023 Q2	$366	Buy	+21	New	+$407	﹤0.01%	4331
2022 Q2	–	Sell	-815	Closed	-$86K	–	3173
2022 Q1	$86K	Sell	815 -59	-7%	-$11.3K	﹤0.01%	2913
2021 Q4	$224K	Sell	874 -23	-3%	-$6.99K	﹤0.01%	2804
2021 Q3	$317K	Buy	897 +22	+3%	+$8.66K	﹤0.01%	2745
2021 Q2	$436K	Buy	875 +261	+43%	+$127K	﹤0.01%	2626
2021 Q1	$292K	Sell	614 -36	-6%	-$69.9K	﹤0.01%	2704
2020 Q4	$1.15M	Buy	650 +34	+6%	+$44.9K	﹤0.01%	2077
2020 Q3	$592K	Sell	616 -116	-16%	-$125K	﹤0.01%	2210
2020 Q2	$851K	Buy	+732	New	+$661K	﹤0.01%	2109

Other funds holding KRRO

LCM

Lynx1 Capital Management San Juan, Puerto Rico $633M AUM 173.22% 1-Year Est. Return

NMC

NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return

AVLSA

Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return

Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return

VR Adviser New York $2.68B AUM 422.73% 1-Year Est. Return

AAA

Affinity Asset Advisors New York $1.94B AUM 374.45% 1-Year Est. Return

NCM

Nantahala Capital Management New Canaan, Connecticut $2.72B AUM 121.58% 1-Year Est. Return

ACM

ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

DCM

Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return

RhumbLine Advisers's KRRO Position: Q1 2026 in Review

RhumbLine Advisers reduced its Korro Bio (KRRO) stake by 3.9% in Q1 2026, selling an estimated $4.4K and leaving 9,850 shares worth $111K. The position accounts for ﹤0.01% of the portfolio, ranked #3364.

RhumbLine Advisers first reported a position in KRRO in Q2 2020 and has held it in 17 quarters since. The position peaked at $1.15M in Q4 2020. 99 funds tracked by Wall St. Rank hold KRRO as of Q1 2026.

RhumbLine Advisers held 9,850 shares of Korro Bio worth $111K as of Q1 2026.
RhumbLine Advisers sold 400 Korro Bio shares in Q1 2026, an estimated $4.4K.
Korro Bio made up ﹤0.01% of RhumbLine Advisers's portfolio in Q1 2026, its #3364 holding.
RhumbLine Advisers first reported a position in Korro Bio in Q2 2020 and has held it in 17 quarters since.
RhumbLine Advisers's Korro Bio position peaked at $1.15M in Q4 2020.
99 funds tracked by Wall St. Rank held Korro Bio as of Q1 2026.

Based on RhumbLine Advisers's 13F filing for Q1 2026, filed 12 May 2026.