Wellington Management Group
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Wellington Management Group’s Cabaletta Bio CABA Stock Holding History

Wellington Management Group’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
Q2 		$890K Buy
286,212
+38,553
+16% +$127K ﹤0.01% 1773
2026
Q1 		$666K Buy
+247,659
New +$688K ﹤0.01% 1742
2025
Q1 		– Sell
-180,157
Closed -$409K – 1954
2024
Q4 		$409K Buy
180,157
+23,106
+15% +$81.1K ﹤0.01% 1850
2024
Q3 		$741K Sell
157,051
-1,758
-1% -$10.2K ﹤0.01% 1764
2024
Q2 		$1.19M Sell
158,809
-849,450
-84% -$10.4M ﹤0.01% 1633
2024
Q1 		$17.2M Buy
1,008,259
+468,383
+87% +$10.1M ﹤0.01% 984
2023
Q4 		$12.3M Buy
539,876
+293,306
+119% +$4.93M ﹤0.01% 1059
2023
Q3 		$3.75M Buy
+246,570
New +$3.37M ﹤0.01% 1351
2021
Q4 		– Sell
-534,700
Closed -$6.5M – 2185
2021
Q3 		$6.5M Hold
534,700
– – ﹤0.01% 1424
2021
Q2 		$4.6M Buy
534,700
+352,700
+194% +$3.47M ﹤0.01% 1524
2021
Q1 		$2.02M Buy
182,000
+72,300
+66% +$883K ﹤0.01% 1624
2020
Q4 		$1.37M Buy
+109,700
New +$1.42M ﹤0.01% 1564

Other funds holding CABA

Jennison Associates
Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
CAM
Cormorant Asset Management Boston, Massachusetts $1.95B AUM 773.9% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return

Wellington Management Group's CABA Position: Q2 2026 in Review

Wellington Management Group increased its Cabaletta Bio (CABA) stake by 16% in Q2 2026, buying an estimated $127K and bringing the position to 286,212 shares worth $890K. The position accounts for ﹤0.01% of the portfolio, ranked #1773.

Wellington Management Group first reported a position in CABA in Q4 2020 and has held it in 12 quarters since. The position peaked at $17.2M in Q1 2024. 140 funds tracked by Wall St. Rank hold CABA as of Q2 2026.

  • Wellington Management Group held 286,212 shares of Cabaletta Bio worth $890K as of Q2 2026.
  • Wellington Management Group bought 38,553 Cabaletta Bio shares in Q2 2026, an estimated $127K.
  • Cabaletta Bio made up ﹤0.01% of Wellington Management Group's portfolio in Q2 2026, its #1773 holding.
  • Wellington Management Group first reported a position in Cabaletta Bio in Q4 2020 and has held it in 12 quarters since.
  • Wellington Management Group's Cabaletta Bio position peaked at $17.2M in Q1 2024.
  • 140 funds tracked by Wall St. Rank held Cabaletta Bio as of Q2 2026.

Based on Wellington Management Group's 13F filing for Q2 2026, filed 14 Aug 2026.