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CITADEL ADVISORS LLC

Position in OABI — OmniAb, Inc.

CIK 1423053 MIAMI, FL

Position in OABI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$143,147
-$215,886 QoQ
Shares Held
58,190
-74.6% QoQ
Ownership
0.040%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#49
of 141 holders
Holding Since
Dec 2022
15 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in OABI Over Time

Shares Held

Position Value (USD)

Derivatives in OABI

reported options exposure · as of Jun 30, 2026
CallValue
$82,902
CallShares
33,700
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

CITADEL ADVISORS LLC holds $6,088,839,618 across 436 Biotechnology names. OABI ranks #334 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in OABI

Export CSV
39 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $82,902 33,700
2026-06-30 $143,147 58,190
2026-03-31 $19,782 12,600
2026-03-31 $359,033 228,684
2025-12-31 $527,497 285,134
2025-12-31 $48,100 26,000
2025-09-30 $41,920 26,200
2025-09-30 $1,338,878 836,799
2025-06-30 $3,710,710 2,132,592
2025-03-31 $6,960 2,900
2025-03-31 $2,400 1,000
2025-03-31 $465,657 194,024
2024-12-31 $1,550,413 437,970
2024-12-31 $35,046 9,900
2024-12-31 $35,754 10,100
2024-09-30 $97,713 23,100
2024-09-30 $22,842 5,400
2024-09-30 $1,162,636 274,855
2024-06-30 $109,875 29,300
2024-06-30 $3,750 1,000
2024-06-30 $561,978 879,309
2024-03-31 $43,902 8,100
2024-03-31 $955,351 921,249
2024-03-31 $48,780 9,000
2023-12-31 $110,443 17,900
2023-12-31 $39,488 6,400
2023-12-31 $928,325 831,876
2023-09-30 $4,789,845 922,899
2023-09-30 $72,141 13,900
2023-09-30 $37,887 7,300
2023-06-30 $115,187 22,900
2023-06-30 $58,851 11,700
2023-06-30 $676,852 861,202
2023-03-31 $1,104 300
2023-03-31 $77,942 21,180
2023-03-31 $4,726,544 1,284,387
2022-12-31 $7,481,955 2,078,321
2022-12-31 $16,596 4,610
2022-12-31 $107,640 29,900