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Equibles

Siren, L.L.C.

Position in WHWK — Whitehawk Therapeutics, Inc.

CIK 2005245 New York, NY
Back to WHWK Full portfolio

Position in WHWK

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$10,703,927
+$3,521,027 QoQ
Shares Held
2,337,102
+12.3% QoQ
Ownership
4.10%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
#7
of 78 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in WHWK Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Siren, L.L.C. holds $4,562,402,933 across 78 Biotechnology names. WHWK ranks #59 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 SRRK
Scholar Rock Holding Corp
 9,575,013 $526,625,715
2 KYMR
Kymera Therapeutics, Inc.
 2,935,830 $336,651,626
3 ERAS
Erasca, Inc.
 11,397,781 $208,807,347
4 MANE
Veradermics, Inc
 1,655,374 $203,511,679
5 TNGX
Tango Therapeutics, Inc.
 6,179,364 $193,166,918
6 RVMD
Revolution Medicines, Inc.
 900,000 $168,552,000
7 BCAX
Bicara Therapeutics Inc.
 5,602,970 $166,352,179
8 ARWR
Arrowhead Pharmaceuticals, Inc.
 1,715,476 $139,828,448

All Filings in WHWK

Export CSV
6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $10,703,927 2,337,102
2026-03-31 $7,182,900 2,082,000
2025-12-31 $5,038,440 2,082,000
2025-09-30 $3,955,800 2,082,000
2025-06-30 $3,893,340 2,082,000
2025-03-31 $3,705,960 2,082,000