Russell Investments Group
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Russell Investments Group’s Korro Bio KRRO Stock Holding History

Russell Investments Group’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 		$23.9K Buy
2,115
+185
+10% +$2.04K ﹤0.01% 3569
2025
Q4 		$15.5K Buy
1,930
+1,115
+137% +$26.1K ﹤0.01% 3695
2025
Q3 		$39K Buy
+815
New +$18.1K ﹤0.01% 3369
2021
Q3 		– Sell
-148
Closed -$73K – 3136
2021
Q2 		$73K Sell
148
-648
-81% -$316K ﹤0.01% 3093
2021
Q1 		$377K Sell
796
-27
-3% -$52.5K ﹤0.01% 2632
2020
Q4 		$1.45M Sell
823
-596
-42% -$787K ﹤0.01% 1925
2020
Q3 		$1.36M Hold
1,419
– – ﹤0.01% 1918
2020
Q2 		$1.65M Buy
1,419
+977
+221% +$883K ﹤0.01% 1757
2020
Q1 		$393K Buy
+442
New +$477K ﹤0.01% 2282

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

Russell Investments Group's KRRO Position: Q1 2026 in Review

Russell Investments Group increased its Korro Bio (KRRO) stake by 9.6% in Q1 2026, buying an estimated $2.04K and bringing the position to 2,115 shares worth $23.9K. The position accounts for ﹤0.01% of the portfolio, ranked #3569.

Russell Investments Group first reported a position in KRRO in Q1 2020 and has held it in 9 quarters since. The position peaked at $1.65M in Q2 2020. 99 funds tracked by Wall St. Rank hold KRRO as of Q1 2026.

  • Russell Investments Group held 2,115 shares of Korro Bio worth $23.9K as of Q1 2026.
  • Russell Investments Group bought 185 Korro Bio shares in Q1 2026, an estimated $2.04K.
  • Korro Bio made up ﹤0.01% of Russell Investments Group's portfolio in Q1 2026, its #3569 holding.
  • Russell Investments Group first reported a position in Korro Bio in Q1 2020 and has held it in 9 quarters since.
  • Russell Investments Group's Korro Bio position peaked at $1.65M in Q2 2020.
  • 99 funds tracked by Wall St. Rank held Korro Bio as of Q1 2026.

Based on Russell Investments Group's 13F filing for Q1 2026, filed 8 May 2026.