Citadel Advisors
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Citadel Advisors’s Korro Bio KRRO Stock Holding History

Citadel Advisors’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 		$350K Sell
30,914
-27,415
-47% -$302K ﹤0.01% 10123
2025
Q4 		$467K Sell
58,329
-95,599
-62% -$2.23M ﹤0.01% 9189
2025
Q3 		$7.37M Sell
153,928
-196,718
-56% -$4.37M ﹤0.01% 3717
2025
Q2 		$4.38M Buy
350,646
+97,396
+38% +$1.4M ﹤0.01% 4350
2025
Q1 		$4.41M Sell
253,250
-116,483
-32% -$3.45M ﹤0.01% 4086
2024
Q4 		$14.1M Sell
369,733
-159,440
-30% -$8.19M ﹤0.01% 2561
2024
Q3 		$17.7M Hold
529,173
– – ﹤0.01% 2175
2024
Q2 		$17.9M Sell
529,173
-7
-0% -$387 ﹤0.01% 2108
2024
Q1 		$46.4M Buy
529,180
+7
+0% +$382 0.01% 1270
2023
Q4 		$24.7M Buy
529,173
+507,563
+2,349% +$16.7M ﹤0.01% 1806
2023
Q3 		$396K Buy
21,610
+21,585
+86,340% +$541K ﹤0.01% 8584
2023
Q2 		$430 Hold
25
– – ﹤0.01% 14122
2023
Q1 		$625 Sell
25
-792
-97% -$90.2K ﹤0.01% 14450
2022
Q4 		$157K Sell
817
-66
-7% -$6.79K ﹤0.01% 10543
2022
Q3 		$79K Sell
883
-1,570
-64% -$159K ﹤0.01% 11287
2022
Q2 		$183K Buy
+2,453
New +$166K ﹤0.01% 10800
2022
Q1 		– Sell
-413
Closed -$78.9K – 14135
2021
Q4 		$106K Sell
413
-992
-71% -$302K ﹤0.01% 12662
2021
Q3 		$496K Sell
1,405
-750
-35% -$295K ﹤0.01% 9889
2021
Q2 		$1.07M Sell
2,155
-295
-12% -$144K ﹤0.01% 8194
2021
Q1 		$1.16M Buy
2,450
+2,320
+1,785% +$4.51M ﹤0.01% 7728
2020
Q4 		$229K Buy
+130
New +$172K ﹤0.01% 9534
2020
Q1 		– Sell
-222
Closed -$195K – 9916
2019
Q4 		$195K Buy
+222
New +$173K ﹤0.01% 8211

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

Citadel Advisors's KRRO Position: Q1 2026 in Review

Citadel Advisors reduced its Korro Bio (KRRO) stake by 47% in Q1 2026, selling an estimated $302K and leaving 30,914 shares worth $350K. The position accounts for ﹤0.01% of the portfolio, ranked #10123.

Citadel Advisors first reported a position in KRRO in Q4 2019 and has held it in 22 quarters since. The position peaked at $46.4M in Q1 2024. 99 funds tracked by Wall St. Rank hold KRRO as of Q1 2026.

  • Citadel Advisors held 30,914 shares of Korro Bio worth $350K as of Q1 2026.
  • Citadel Advisors sold 27,415 Korro Bio shares in Q1 2026, an estimated $302K.
  • Korro Bio made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #10123 holding.
  • Citadel Advisors first reported a position in Korro Bio in Q4 2019 and has held it in 22 quarters since.
  • Citadel Advisors's Korro Bio position peaked at $46.4M in Q1 2024.
  • 99 funds tracked by Wall St. Rank held Korro Bio as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.