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Equibles

CITADEL ADVISORS LLC

Position in RCUS — Arcus Biosciences, Inc.

CIK 1423053 MIAMI, FL
Back to RCUS Full portfolio

Position in RCUS

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$28,726,596
+$26,231,572 QoQ
Shares Held
1,329,935
+1170.2% QoQ
Ownership
1.06%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in RCUS Over Time

Shares Held

Position Value (USD)

Derivatives in RCUS

reported options exposure · as of Mar 31, 2026
CallValue
$1,738,800
CallShares
80,500
PutValue
$216,000
PutShares
10,000

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 Mar 31, 2026

CITADEL ADVISORS LLC holds $5,783,571,443 across 373 Biotechnology names. RCUS ranks #44 (0.5% 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 TERN
Terns Pharmaceuticals, Inc.
 3,218,810 $169,695,662
8 PTGX
Protagonist Therapeutics, Inc
 1,551,900 $163,570,260

All Filings in RCUS

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $28,726,596 1,329,935
2026-03-31 $1,738,800 80,500
2026-03-31 $216,000 10,000
2025-12-31 $888,859 37,300
2025-12-31 $2,254,318 94,600
2025-12-31 $2,495,024 104,701
2025-09-30 $485,520 35,700
2025-09-30 $4,012,734 295,054
2025-09-30 $1,407,600 103,500
2025-06-30 $4,975,127 611,195
2025-06-30 $328,042 40,300
2025-06-30 $618,640 76,000
2025-03-31 $279,460 35,600
2025-03-31 $2,960,218 377,098
2025-03-31 $260,620 33,200
2024-12-31 $5,369,243 360,594
2024-12-31 $336,514 22,600
2024-12-31 $585,177 39,300
2024-09-30 $388,366 25,400
2024-09-30 $4,860,247 317,871
2024-09-30 $240,053 15,700
2024-06-30 $7,114,891 467,163
2024-06-30 $443,193 29,100
2024-06-30 $42,644 2,800
2024-03-31 $6,700,907 354,921
2024-03-31 $381,376 20,200
2024-03-31 $354,944 18,800
2023-12-31 $5,270,148 275,924
2023-12-31 $353,350 18,500
2023-12-31 $632,210 33,100
2023-09-30 $5,130,953 285,847
2023-09-30 $339,255 18,900
2023-09-30 $639,020 35,600
2023-06-30 $806,307 39,700
2023-06-30 $14,940,624 735,629
2023-06-30 $706,788 34,800
2023-03-31 $913,824 50,100
2023-03-31 $32,211,985 1,766,008
2023-03-31 $415,872 22,800
2022-12-31 $13,301,975 643,229
2022-12-31 $339,152 16,400
2022-12-31 $1,377,288 66,600
2022-09-30 $692,978 26,490
2022-09-30 $667,080 25,500
2022-06-30 $2,506,126 98,900
2022-06-30 $1,482,390 58,500
2022-06-30 $1,314,715 51,883
2022-03-31 $628,295 19,908
2022-03-31 $391,344 12,400
2022-03-31 $258,792 8,200

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