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MILLENNIUM MANAGEMENT LLC

Position in CABA — Cabaletta Bio, Inc.

CIK 1273087 NEW YORK, NY

Position in CABA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$6,433,007
-$9,446,818 QoQ
Shares Held
2,068,491
-65.0% QoQ
Ownership
1.22%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#17
of 139 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CABA Over Time

Shares Held

Position Value (USD)

Derivatives in CABA

reported options exposure · as of Sep 30, 2024
CallValue
$472,000
CallShares
100,000
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

MILLENNIUM MANAGEMENT LLC holds $4,596,705,485 across 322 Biotechnology names. CABA ranks #149 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CABA

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30 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $6,433,007 2,068,491
2026-06-30 $6,433,007 2,068,491
2026-03-31 $15,879,825 5,903,281
2026-02-11 $13,186,060 5,130,763
2025-12-31 $5,993,837 2,736,912
2025-09-30 $1,607,142 686,813
2025-06-30 $1,300,101 855,330
2025-03-31 $233,925 168,899
2024-12-31 $1,161,361 511,613
2024-09-30 $7,688,469 1,628,913
2024-09-30 $472,000 100,000
2024-06-30 $5,223,411 698,317
2024-03-31 $1,706,000 100,000
2024-03-31 $7,836,801 459,367
2023-06-30 $4,790,513 371,070
2023-03-31 $4,731,424 572,119
2022-12-31 $3,247,906 351,125
2022-09-30 $149,859 230,553
2022-06-30 $252,530 238,236
2022-03-31 $732,832 361,001
2021-12-31 $538,699 142,137
2021-09-30 $1,478,947 121,624
2021-06-30 $8,516,838 990,330
2021-03-31 $610,500 55,000
2021-03-31 $555,000 50,000
2021-03-31 $9,722,634 875,913
2020-12-31 $7,553,457 605,245
2020-09-30 $6,523,837 601,830
2020-06-30 $7,039,410 631,904
2020-03-31 $2,867,549 392,815