Jane Street
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Jane Street’s Korro Bio KRRO Stock Holding History

Jane Street’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 		– Sell
-42,800
Closed -$484K – 12428
2026
Q1 		$484K Sell
42,800
-273,100
-86% -$3.01M ﹤0.01% 8121
2025
Q4 		$2.53M Buy
+315,900
New +$7.38M ﹤0.01% 4376
2021
Q2 		– Sell
-3,540
Closed -$1.68M – 10125
2021
Q1 		$1.68M Buy
+3,540
New +$6.88M ﹤0.01% 4362

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

Jane Street's KRRO Position: Q2 2026 in Review

Jane Street sold out of Korro Bio (KRRO) in Q2 2026, closing a stake of 115,704 shares — an estimated $1.31M sold.

Jane Street first reported a position in KRRO in Q2 2020 and held it in 10 quarters. The position peaked at $2.32M in Q1 2024. 107 funds tracked by Wall St. Rank hold KRRO as of Q2 2026.

  • Jane Street reported no remaining Korro Bio position as of Q2 2026 after selling out during the quarter.
  • Jane Street sold 115,704 Korro Bio shares in Q2 2026, an estimated $1.31M.
  • Jane Street first reported a position in Korro Bio in Q2 2020 and held it in 10 quarters.
  • Jane Street's Korro Bio position peaked at $2.32M in Q1 2024.
  • 107 funds tracked by Wall St. Rank held Korro Bio as of Q2 2026.

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