Millennium Management
KRRO icon

Millennium Management’s Korro Bio KRRO Stock Holding History

Millennium Management’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 		$720K Sell
63,606
-97,486
-61% -$1.07M ﹤0.01% 4589
2025
Q4 		$1.29M Sell
161,092
-99,241
-38% -$2.32M ﹤0.01% 4300
2025
Q3 		$12.5M Buy
260,333
+4,650
+2% +$103K 0.01% 2153
2025
Q2 		$3.19M Buy
255,683
+146,814
+135% +$2.11M ﹤0.01% 3441
2025
Q1 		$1.9M Buy
108,869
+13,061
+14% +$387K ﹤0.01% 3828
2024
Q4 		$3.65M Buy
95,808
+23,547
+33% +$1.21M ﹤0.01% 3119
2024
Q3 		$2.41M Sell
72,261
-11,940
-14% -$502K ﹤0.01% 3540
2024
Q2 		$2.85M Buy
84,201
+23,307
+38% +$1.29M ﹤0.01% 3213
2024
Q1 		$5.48M Buy
+60,894
New +$3.32M ﹤0.01% 2772
2023
Q3 		– Sell
-1,666
Closed -$28.8K – 6355
2023
Q2 		$28.8K Buy
1,666
+681
+69% +$13.2K ﹤0.01% 5581
2023
Q1 		$25K Sell
985
-3,389
-77% -$386K ﹤0.01% 5811
2022
Q4 		$842K Sell
4,374
-775
-15% -$79.7K ﹤0.01% 4331
2022
Q3 		$461K Sell
5,149
-666
-11% -$67.6K ﹤0.01% 5033
2022
Q2 		$436K Buy
5,815
+4,085
+236% +$276K ﹤0.01% 5075
2022
Q1 		$183K Buy
1,730
+597
+53% +$114K ﹤0.01% 5860
2021
Q4 		$291K Buy
+1,133
New +$344K ﹤0.01% 5572
2021
Q3 		– Sell
-3,776
Closed -$1.88M – 7040
2021
Q2 		$1.88M Buy
3,776
+3,329
+745% +$1.63M ﹤0.01% 4038
2021
Q1 		$213K Sell
447
-990
-69% -$1.92M ﹤0.01% 5460
2020
Q4 		$2.53M Buy
+1,437
New +$1.9M ﹤0.01% 3045
2020
Q2 		– Sell
-306
Closed -$273K – 4400
2020
Q1 		$273K Sell
306
-2,289
-88% -$2.47M ﹤0.01% 3232
2019
Q4 		$2.27M Buy
+2,595
New +$2.02M ﹤0.01% 2534

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

Millennium Management's KRRO Position: Q1 2026 in Review

Millennium Management reduced its Korro Bio (KRRO) stake by 61% in Q1 2026, selling an estimated $1.07M and leaving 63,606 shares worth $720K. The position accounts for ﹤0.01% of the portfolio, ranked #4589.

Millennium Management first reported a position in KRRO in Q4 2019 and has held it in 21 quarters since. The position peaked at $12.5M in Q3 2025. 99 funds tracked by Wall St. Rank hold KRRO as of Q1 2026.

  • Millennium Management held 63,606 shares of Korro Bio worth $720K as of Q1 2026.
  • Millennium Management sold 97,486 Korro Bio shares in Q1 2026, an estimated $1.07M.
  • Korro Bio made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #4589 holding.
  • Millennium Management first reported a position in Korro Bio in Q4 2019 and has held it in 21 quarters since.
  • Millennium Management's Korro Bio position peaked at $12.5M in Q3 2025.
  • 99 funds tracked by Wall St. Rank held Korro Bio as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.