Adage Capital Partners
CABA icon

Adage Capital Partners’s Cabaletta Bio CABA Stock Holding History

Adage Capital Partners’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 		$23.8M Hold
8,829,758
– – 0.04% 428
2025
Q4 		$19.3M Hold
8,829,758
– – 0.03% 492
2025
Q3 		$20.7M Hold
8,829,758
– – 0.03% 457
2025
Q2 		$13.4M Buy
8,829,758
+5,195,285
+143% +$8.1M 0.02% 551
2025
Q1 		$5.03M Hold
3,634,473
– – 0.01% 697
2024
Q4 		$8.25M Buy
3,634,473
+597,828
+20% +$2.1M 0.01% 650
2024
Q3 		$14.3M Hold
3,036,645
– – 0.03% 536
2024
Q2 		$22.7M Hold
3,036,645
– – 0.04% 398
2024
Q1 		$51.8M Sell
3,036,645
-230,000
-7% -$4.94M 0.1% 222
2023
Q4 		$74.2M Hold
3,266,645
– – 0.15% 145
2023
Q3 		$49.7M Hold
3,266,645
– – 0.11% 196
2023
Q2 		$42.2M Buy
3,266,645
+725,000
+29% +$7.87M 0.09% 224
2023
Q1 		$21M Hold
2,541,645
– – 0.05% 400
2022
Q4 		$23.5M Hold
2,541,645
– – 0.06% 381
2022
Q3 		$1.65M Hold
2,541,645
– – ﹤0.01% 866
2022
Q2 		$2.69M Hold
2,541,645
– – 0.01% 862
2022
Q1 		$5.16M Hold
2,541,645
– – 0.01% 830
2021
Q4 		$9.63M Sell
2,541,645
-500,000
-16% -$5.34M 0.02% 711
2021
Q3 		$37M Hold
3,041,645
– – 0.07% 274
2021
Q2 		$26.2M Hold
3,041,645
– – 0.05% 372
2021
Q1 		$33.8M Sell
3,041,645
-139,160
-4% -$1.7M 0.07% 304
2020
Q4 		$39.7M Sell
3,180,805
-223,955
-7% -$2.9M 0.09% 249
2020
Q3 		$36.9M Sell
3,404,760
-160,249
-4% -$1.84M 0.09% 231
2020
Q2 		$39.7M Sell
3,565,009
-39,751
-1% -$304K 0.1% 228
2020
Q1 		$26.3M Sell
3,604,760
-137,166
-4% -$1.88M 0.08% 266
2019
Q4 		$52.3M Buy
+3,741,926
New +$44.3M 0.13% 192

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 $145B AUM 34.61% 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 $5.72T AUM 30.48% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Adage Capital Partners's CABA Position: Q1 2026 in Review

Adage Capital Partners held its Cabaletta Bio (CABA) position steady in Q1 2026 at 8,829,758 shares worth $23.8M. The position accounts for 0.04% of the portfolio, ranked #428.

Adage Capital Partners first reported a position in CABA in Q4 2019 and has held it in 26 quarters since. The position peaked at $74.2M in Q4 2023. 108 funds tracked by Wall St. Rank hold CABA as of Q1 2026.

  • Adage Capital Partners held 8,829,758 shares of Cabaletta Bio worth $23.8M as of Q1 2026.
  • Adage Capital Partners left its Cabaletta Bio share count unchanged in Q1 2026.
  • Cabaletta Bio made up 0.04% of Adage Capital Partners's portfolio in Q1 2026, its #428 holding.
  • Adage Capital Partners first reported a position in Cabaletta Bio in Q4 2019 and has held it in 26 quarters since.
  • Adage Capital Partners's Cabaletta Bio position peaked at $74.2M in Q4 2023.
  • 108 funds tracked by Wall St. Rank held Cabaletta Bio as of Q1 2026.

Based on Adage Capital Partners's 13F filing for Q1 2026, filed 15 May 2026.