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Equibles

CITADEL ADVISORS LLC

Position in SEER — Seer, Inc.

CIK 1423053 MIAMI, FL
Back to SEER Full portfolio

Position in SEER

as of Jun 30, 2026 · filed Sep 2, 2026
Position Value
$862,054
+$840,781 QoQ
Shares Held
519,310
+4367.2% QoQ
Ownership
0.938%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#8
of 59 holders
Holding Since
Dec 2020
22 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in SEER Over Time

Shares Held

Position Value (USD)

Derivatives in SEER

reported options exposure · as of Mar 31, 2025
CallValue
$338
CallShares
200
PutValue
$2,366
PutShares
1,400

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 $6,150,763,744 across 435 Biotechnology names. SEER ranks #236 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ONC
BeOne Medicines Ltd.
 1,425,517 $406,229,578
2 BBIO
BridgeBio Pharma, Inc.
 3,760,028 $280,046,885
3 INSM
INSMED Inc
 2,556,973 $272,624,460
4 MDGL
Madrigal Pharmaceuticals, Inc.
 507,233 $272,358,759
5 VRTX
Vertex Pharmaceuticals Inc / Ma
 510,430 $253,545,893
6 JAZZ
Jazz Pharmaceuticals plc
 1,006,676 $242,578,715
7 MANE
Veradermics, Inc
 1,877,775 $230,853,658
8 ROIV
Roivant Sciences Ltd.
 5,576,261 $197,343,876

All Filings in SEER

Export CSV
48 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $862,054 519,310
2025-12-31 $21,273 11,625
2025-09-30 $35,640 16,424
2025-06-30 $537,647 251,237
2025-03-31 $69,585 41,175
2025-03-31 $2,366 1,400
2025-03-31 $338 200
2024-12-31 $2,772 1,200
2024-12-31 $6,930 3,000
2024-12-31 $531,648 230,151
2024-09-30 $576,561 292,671
2024-09-30 $1,182 600
2024-06-30 $168 100
2024-06-30 $168 100
2024-06-30 $579,122 344,716
2024-03-31 $547,699 288,263
2024-03-31 $380 200
2023-12-31 $1,940 1,000
2023-12-31 $776 400
2023-12-31 $296,804 152,992
2023-09-30 $12,155 5,500
2023-09-30 $14,807 6,700
2023-09-30 $55,868 25,280
2023-06-30 $17,080 4,000
2023-06-30 $2,548,348 596,803
2023-06-30 $13,664 3,200
2023-03-31 $138,574 35,900
2023-03-31 $159,544 41,333
2023-03-31 $41,302 10,700
2022-12-31 $20,880 3,600
2022-12-31 $16,820 2,900
2022-12-31 $682,868 117,736
2022-09-30 $388,733 50,224
2022-06-30 $131,565 14,700
2022-03-31 $530,352 34,800
2022-03-31 $1,656,617 108,702
2022-03-31 $509,016 33,400
2021-12-31 $426,547 18,700
2021-12-31 $1,045,519 45,836
2021-09-30 $272,787 7,900
2021-09-30 $212,186 6,145
2021-09-30 $379,830 11,000
2021-06-30 $1,844,333 56,264
2021-06-30 $354,024 10,800
2021-06-30 $1,334,146 40,700
2021-03-31 $330,132 6,600
2021-03-31 $665,266 13,300
2020-12-31 $11,093,656 197,607