Fidelity Investments
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Fidelity Investments’s Korro Bio KRRO Stock Holding History

Fidelity Investments’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 		$514K Buy
38,975
+75
+0.2% +$932 ﹤0.01% 3277
2026
Q1 		$440K Buy
38,900
+1,043
+3% +$11.5K ﹤0.01% 3177
2025
Q4 		$303K Sell
37,857
-525,824
-93% -$12.3M ﹤0.01% 3270
2025
Q3 		$27M Sell
563,681
-75,541
-12% -$1.68M ﹤0.01% 1653
2025
Q2 		$7.98M Sell
639,222
-4,047
-0.6% -$58.3K ﹤0.01% 2020
2025
Q1 		$11.2M Buy
643,269
+1,530
+0.2% +$45.4K ﹤0.01% 1869
2024
Q4 		$24.4M Buy
641,739
+62,176
+11% +$3.2M ﹤0.01% 1652
2024
Q3 		$19.4M Sell
579,563
-59,562
-9% -$2.51M ﹤0.01% 1717
2024
Q2 		$21.6M Sell
639,125
-88,080
-12% -$4.87M ﹤0.01% 1620
2024
Q1 		$63.4M Hold
727,205
– – ﹤0.01% 1231
2023
Q4 		$32.6M Buy
+727,205
New +$24M ﹤0.01% 1454
2023
Q1 		– Sell
-11
Closed -$2.13K – 5420
2022
Q4 		$2.13K Hold
11
– – ﹤0.01% 4499
2022
Q3 		$1K Hold
11
– – ﹤0.01% 4693
2022
Q2 		$1K Sell
11
-20
-65% -$1.35K ﹤0.01% 4747
2022
Q1 		$3K Buy
+31
New +$5.92K ﹤0.01% 4569
2021
Q4 		– Hold
0
– – – 4687
2021
Q2 		– Sell
-367
Closed -$174K – 4593
2021
Q1 		$174K Hold
367
– – ﹤0.01% 2845
2020
Q4 		$647K Sell
367
-94
-20% -$124K ﹤0.01% 2606
2020
Q3 		$443K Sell
461
-1,304
-74% -$1.4M ﹤0.01% 2552
2020
Q2 		$2.05M Hold
1,765
– – ﹤0.01% 2274
2020
Q1 		$1.57M Hold
1,765
– – ﹤0.01% 2242
2019
Q4 		$1.55M Buy
+1,765
New +$1.37M ﹤0.01% 2315

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

Fidelity Investments's KRRO Position: Q2 2026 in Review

Fidelity Investments increased its Korro Bio (KRRO) stake by 0.19% in Q2 2026, buying an estimated $932 and bringing the position to 38,975 shares worth $514K. The position accounts for ﹤0.01% of the portfolio, ranked #3277.

Fidelity Investments first reported a position in KRRO in Q4 2019 and has held it in 21 quarters since. The position peaked at $63.4M in Q1 2024. 106 funds tracked by Wall St. Rank hold KRRO as of Q2 2026.

  • Fidelity Investments held 38,975 shares of Korro Bio worth $514K as of Q2 2026.
  • Fidelity Investments bought 75 Korro Bio shares in Q2 2026, an estimated $932.
  • Korro Bio made up ﹤0.01% of Fidelity Investments's portfolio in Q2 2026, its #3277 holding.
  • Fidelity Investments first reported a position in Korro Bio in Q4 2019 and has held it in 21 quarters since.
  • Fidelity Investments's Korro Bio position peaked at $63.4M in Q1 2024.
  • 106 funds tracked by Wall St. Rank held Korro Bio as of Q2 2026.

Based on Fidelity Investments's 13F filing for Q2 2026, filed 13 Aug 2026.