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
2024
Q4 		– Sell
-100,000
Closed -$472K – 5981
2024
Q3 		$472K Buy
+100,000
New +$579K ﹤0.01% 4875
2024
Q2 		– Sell
-100,000
Closed -$1.71M – 5931
2024
Q1 		$1.71M Buy
+100,000
New +$2.15M ﹤0.01% 3871
2021
Q2 		– Sell
-55,000
Closed -$611K – 6551
2021
Q1 		$611K Buy
+55,000
New +$672K ﹤0.01% 4656

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
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 $4.04T 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

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.