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Equibles

CITADEL ADVISORS LLC

Position in PBYI — Puma Biotechnology, Inc.

CIK 1423053 MIAMI, FL
Back to PBYI Full portfolio

Position in PBYI

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$191,438
-$776,448 QoQ
Shares Held
29,959
-81.6% QoQ
Ownership
0.059%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PBYI Over Time

Shares Held

Position Value (USD)

Derivatives in PBYI

reported options exposure · as of Dec 31, 2025
CallValue
$88,060
CallShares
14,800
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 Mar 31, 2026

CITADEL ADVISORS LLC holds $5,531,283,955 across 373 Biotechnology names. PBYI ranks #294 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 INSM
INSMED Inc
 2,182,571 $356,894,009
2 ONC
BeOne Medicines Ltd.
 1,032,298 $306,561,536
3 BMRN
Biomarin Pharmaceutical Inc
 4,512,634 $254,918,694
4 JAZZ
Jazz Pharmaceuticals plc
 1,259,444 $238,097,887
5 MDGL
Madrigal Pharmaceuticals, Inc.
 453,843 $237,573,195
6 BBIO
BridgeBio Pharma, Inc.
 3,173,940 $235,696,783
7 PTGX
Protagonist Therapeutics, Inc
 1,551,900 $163,570,260
8 ARGX
Argenx SE
 219,126 $160,016,761

All Filings in PBYI

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $191,438 29,959
2025-12-31 $967,886 162,670
2025-12-31 $88,060 14,800
2025-09-30 $123,723 23,300
2025-06-30 $160,181 46,700
2025-06-30 $1,741,815 507,818
2025-03-31 $592 200
2025-03-31 $96,792 32,700
2024-12-31 $10,370 3,400
2024-12-31 $54,595 17,900
2024-12-31 $486,246 159,425
2024-09-30 $9,435 3,700
2024-09-30 $85,170 33,400
2024-09-30 $17,566 6,889
2024-06-30 $37,917 11,631
2024-06-30 $60,310 18,500
2024-06-30 $10,758 3,300
2024-03-31 $98,050 18,500
2024-03-31 $559,150 105,500
2023-12-31 $22,949 5,300
2023-12-31 $104,786 24,200
2023-12-31 $527,376 121,796
2023-09-30 $52,863 20,100
2023-09-30 $473,696 180,113
2023-09-30 $1,052 400
2023-06-30 $59,657 16,900
2023-06-30 $38,830 11,000
2023-06-30 $774,608 219,436
2023-03-31 $27,810 9,000
2023-03-31 $730,398 236,375
2023-03-31 $46,968 15,200
2022-12-31 $61,335 14,500
2022-12-31 $636,855 150,557
2022-12-31 $28,764 6,800
2022-09-30 $51,429 21,700
2022-09-30 $497,616 209,965
2022-09-30 $44,319 18,700
2022-06-30 $853,509 299,477
2022-03-31 $236,822 82,230
2022-03-31 $117,216 40,700
2021-12-31 $95,152 31,300
2021-12-31 $49,248 16,200
2021-12-31 $251,097 82,598
2021-09-30 $463,361 66,100
2021-09-30 $80,615 11,500
2021-09-30 $1,401,354 199,908
2021-06-30 $536,112 58,400
2021-06-30 $1,806,972 196,838
2021-06-30 $186,354 20,300
2021-03-31 $343,116 35,300

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