Ken Griffin
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Ken Griffin’s Cabaletta Bio CABA Stock Holding History

Ken Griffin’s Portfolio CABA Stock Details CABA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-33,502
Closed -$93K – 13060
2025
Q4 		$73.4K Sell
33,502
-671,963
-95% -$1.67M ﹤0.01% 11848
2025
Q3 		$1.65M Sell
705,465
-982,515
-58% -$1.69M ﹤0.01% 6463
2025
Q2 		$2.57M Buy
1,687,980
+1,687,630
+482,180% +$2.63M ﹤0.01% 5254
2025
Q1 		$485 Buy
+350
New +$746 ﹤0.01% 14255
2024
Q4 		– Sell
-4,511
Closed -$15.8K – 14560
2024
Q3 		$21.3K Sell
4,511
-315,035
-99% -$1.82M ﹤0.01% 12731
2024
Q2 		$2.39M Buy
319,546
+317,305
+14,159% +$3.89M ﹤0.01% 4985
2024
Q1 		$38.2K Sell
2,241
-31,639
-93% -$679K ﹤0.01% 12444
2023
Q4 		$769K Buy
33,880
+31,417
+1,276% +$528K ﹤0.01% 7209
2023
Q3 		$37.5K Buy
+2,463
New +$33.7K ﹤0.01% 12072
2023
Q2 		– Sell
-21,197
Closed -$230K – 14396
2023
Q1 		$175K Sell
21,197
-51,981
-71% -$487K ﹤0.01% 10395
2022
Q4 		$677K Buy
+73,178
New +$266K ﹤0.01% 7616
2022
Q3 		– Sell
-1,254,479
Closed -$1.51M – 12667
2022
Q2 		$1.33M Sell
1,254,479
-220,621
-15% -$312K ﹤0.01% 6387
2022
Q1 		$2.99M Sell
1,475,100
-24,523
-2% -$64.1K ﹤0.01% 5187
2021
Q4 		$5.68M Buy
1,499,623
+940,156
+168% +$10M ﹤0.01% 4072
2021
Q3 		$6.8M Buy
559,467
+522,135
+1,399% +$4.81M ﹤0.01% 3734
2021
Q2 		$321K Buy
37,332
+18,481
+98% +$182K ﹤0.01% 11103
2021
Q1 		$209K Buy
18,851
+8,042
+74% +$98.2K ﹤0.01% 11600
2020
Q4 		$135K Buy
+10,809
New +$140K ﹤0.01% 10012
2020
Q2 		– Sell
-16,312
Closed -$119K – 9805
2020
Q1 		$119K Buy
+16,312
New +$224K ﹤0.01% 8499

Other funds holding CABA

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
CAM
Cormorant Asset Management Boston, Massachusetts $1.99B AUM 737.95% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Ken Griffin's CABA Position: Q1 2026 in Review

Ken Griffin sold out of Cabaletta Bio (CABA) in Q1 2026, closing a stake of 33,502 shares — an estimated $93K sold.

Ken Griffin first reported a position in CABA in Q1 2020 and held it in 19 quarters. The position peaked at $6.8M in Q3 2021. 108 funds tracked by Wall St. Rank hold CABA as of Q1 2026.

  • Ken Griffin reported no remaining Cabaletta Bio position as of Q1 2026 after selling out during the quarter.
  • Ken Griffin sold 33,502 Cabaletta Bio shares in Q1 2026, an estimated $93K.
  • Ken Griffin first reported a position in Cabaletta Bio in Q1 2020 and held it in 19 quarters.
  • Ken Griffin's Cabaletta Bio position peaked at $6.8M in Q3 2021.
  • 108 funds tracked by Wall St. Rank held Cabaletta Bio as of Q1 2026.

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