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CITADEL ADVISORS LLC

Position in CABA — Cabaletta Bio, Inc.

CIK 1423053 MIAMI, FL

Position in CABA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$10,953,768
+$10,953,768 QoQ
Shares Held
3,522,112
Ownership
2.08%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#13
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 Jun 30, 2026
CallValue
$1,529,187
CallShares
491,700
PutValue
$370,090
PutShares
119,000

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

CITADEL ADVISORS LLC holds $6,088,839,618 across 436 Biotechnology names. CABA ranks #95 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CABA

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,529,187 491,700
2026-06-30 $370,090 119,000
2026-06-30 $10,953,768 3,522,112
2026-03-31 $221,118 82,200
2026-03-31 $1,287,434 478,600
2025-12-31 $73,369 33,502
2025-12-31 $487,494 222,600
2025-09-30 $572,832 244,800
2025-09-30 $1,650,788 705,465
2025-09-30 $7,371,643 3,150,275
2025-06-30 $2,565,729 1,687,980
2025-06-30 $43,776 28,800
2025-06-30 $116,280 76,500
2025-06-12 $8,673,408 4,818,560
2025-03-31 $56,092 40,500
2025-03-31 $484 350
2025-03-31 $186,005 134,300
2024-12-31 $154,360 68,000
2024-12-31 $309,628 136,400
2024-09-30 $68,440 14,500
2024-09-30 $178,888 37,900
2024-09-30 $21,291 4,511
2024-06-30 $2,390,204 319,546
2024-06-30 $166,056 22,200
2024-06-30 $141,372 18,900
2024-03-31 $290,020 17,000
2024-03-31 $38,231 2,241
2024-03-31 $1,262,440 74,000
2023-12-31 $769,076 33,880
2023-12-31 $1,243,960 54,800
2023-12-31 $161,170 7,100
2023-09-30 $140,024 9,200
2023-09-30 $141,546 9,300
2023-09-30 $37,486 2,463
2023-06-30 $99,407 7,700
2023-06-30 $158,793 12,300
2023-03-31 $175,298 21,197
2023-03-31 $99,240 12,000
2023-03-31 $177,805 21,500
2022-12-31 $676,896 73,178
2022-12-31 $223,850 24,200
2022-12-31 $162,800 17,600
2022-09-30 $11,635 17,900
2022-09-30 $54,080 83,200
2022-06-30 $1,329,747 1,254,479
2022-03-31 $2,994,453 1,475,100
2021-12-31 $167,139 44,100
2021-12-31 $75,042 19,800
2021-12-31 $5,683,570 1,499,623
2021-09-30 $6,803,117 559,467