Millennium Management
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Millennium Management’s Cabaletta Bio CABA Stock Holding History

Millennium Management’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 		$15.9M Buy
5,903,281
+3,166,369
+116% +$8.79M 0.01% 1736
2025
Q4 		$5.99M Buy
2,736,912
+2,050,099
+298% +$5.08M ﹤0.01% 2813
2025
Q3 		$1.61M Sell
686,813
-168,517
-20% -$289K ﹤0.01% 4242
2025
Q2 		$1.3M Buy
855,330
+686,431
+406% +$1.07M ﹤0.01% 4225
2025
Q1 		$234K Sell
168,899
-342,714
-67% -$730K ﹤0.01% 5222
2024
Q4 		$1.16M Sell
511,613
-1,117,300
-69% -$3.92M ﹤0.01% 4081
2024
Q3 		$7.69M Buy
1,628,913
+930,596
+133% +$5.38M ﹤0.01% 2439
2024
Q2 		$5.22M Buy
698,317
+238,950
+52% +$2.93M ﹤0.01% 2680
2024
Q1 		$7.84M Buy
+459,367
New +$9.86M ﹤0.01% 2423
2023
Q3 		– Sell
-371,070
Closed -$4.79M – 6152
2023
Q2 		$4.79M Sell
371,070
-201,049
-35% -$2.18M ﹤0.01% 2714
2023
Q1 		$4.73M Buy
572,119
+220,994
+63% +$2.07M ﹤0.01% 2650
2022
Q4 		$3.25M Buy
351,125
+120,572
+52% +$439K ﹤0.01% 3152
2022
Q3 		$150K Sell
230,553
-7,683
-3% -$9.25K ﹤0.01% 5804
2022
Q2 		$253K Sell
238,236
-122,765
-34% -$174K ﹤0.01% 5501
2022
Q1 		$733K Buy
361,001
+218,864
+154% +$572K ﹤0.01% 4814
2021
Q4 		$539K Buy
142,137
+20,513
+17% +$219K ﹤0.01% 4982
2021
Q3 		$1.48M Sell
121,624
-868,706
-88% -$8.01M ﹤0.01% 4253
2021
Q2 		$8.52M Buy
990,330
+114,417
+13% +$1.12M 0.01% 2113
2021
Q1 		$9.72M Buy
875,913
+270,668
+45% +$3.31M 0.01% 1804
2020
Q4 		$7.55M Buy
605,245
+3,415
+0.6% +$44.3K 0.01% 2057
2020
Q3 		$6.52K Sell
601,830
-30,074
-5% -$346K 0.01% 1603
2020
Q2 		$7.04M Buy
631,904
+239,089
+61% +$1.83M 0.01% 1476
2020
Q1 		$2.87M Buy
392,815
+152,865
+64% +$2.1M 0.01% 1762
2019
Q4 		$3.35M Buy
+239,950
New +$2.84M ﹤0.01% 2239

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
CAM
Cormorant Asset Management Boston, Massachusetts $1.99B AUM 737.95% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T 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 $127B AUM 46.06% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Millennium Management's CABA Position: Q1 2026 in Review

Millennium Management increased its Cabaletta Bio (CABA) stake by 116% in Q1 2026, buying an estimated $8.79M and bringing the position to 5,903,281 shares worth $15.9M. The position accounts for 0.01% of the portfolio, ranked #1736.

Millennium Management first reported a position in CABA in Q4 2019 and has held it in 24 quarters since. 108 funds tracked by Wall St. Rank hold CABA as of Q1 2026.

  • Millennium Management held 5,903,281 shares of Cabaletta Bio worth $15.9M as of Q1 2026.
  • Millennium Management bought 3,166,369 Cabaletta Bio shares in Q1 2026, an estimated $8.79M.
  • Cabaletta Bio made up 0.01% of Millennium Management's portfolio in Q1 2026, its #1736 holding.
  • Millennium Management first reported a position in Cabaletta Bio in Q4 2019 and has held it in 24 quarters since.
  • 108 funds tracked by Wall St. Rank held Cabaletta Bio as of Q1 2026.

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