Siren LLC

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Siren LLC
CIK #0002005245
Sector Form 13F Holdings Value ($B)
Scholar Rock Holding Corp 0.5
Kymera Therapeutics Inc 0.3
Erasca Inc 0.2
Edgewise Therapeutics Inc 0.1
BeiGene Ltd 0.1
BCTG Acquisition Corp 0.1
Bicara Therapeutics Inc 0.1
Revolution Medicines Inc 0.1
Arrowhead Research Corp 0.1
Veradermics Inc 0.1
View All
Holdings by Sector ($B)
4.03.22.41.60.80.02019202120242027
EDGAR Form CIK 2011 - 2026
13F-HR [0002005245]
3 [0002005245]
4 [0002005245]
Form 3/4/5 Subject 2011 - 2026
Debbane Raymond
Invus Global Management LLC
Scholar Rock Holding Corp
Siren LLC
Artal Group S A
Artal Participations Sa rl
WestEnd SA
Lexicon Pharmaceuticals Inc
Stichting Administratiekantoor WestEnd
Artal International SCA
Artal International Management SA
Invus Public Equities Advisors LLC
Invus Public Equities LP
Crescent Biopharma Inc
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Lexicon Pharmaceuticals Inc LXRX
Series B Convertible Preferred Stock
2026-02-02 Grant 367,145.12 $65.00 23,864,433
Lexicon Pharmaceuticals Inc LXRX
Common Stock
2026-02-02 Grant 18,553,846 $1.30 24,120,000
Lexicon Pharmaceuticals Inc LXRX
Common Stock
2026-02-02 Grant 3,846,154 $1.30 5,000,000
Lexicon Pharmaceuticals Inc LXRX
Common Stock
2026-02-02 Buy 1,538,462 $1.30 2,000,001
Scholar Rock Holding Corp SRRK
Warrant (right to buy) · derivative
2025-12-11 Option exercise 1,575,008 $0.00
Scholar Rock Holding Corp SRRK
Common Stock
2025-12-11 Option exercise 1,575,008 $7.35 11,576,309
Scholar Rock Holding Corp SRRK
Common Stock
2024-12-10 Sell 1,600,000 $41.65 66,640,000
Scholar Rock Holding Corp SRRK
Common Stock
2024-11-25 Sell 43,887 $38.43 1,686,577
Scholar Rock Holding Corp SRRK
Common Stock
2024-11-25 Sell 208,272 $37.63 7,837,275
Scholar Rock Holding Corp SRRK
Common Stock
2024-11-25 Sell 126,442 $39.51 4,995,723
Scholar Rock Holding Corp SRRK
Common Stock
2024-11-25 Sell 149 $40.98 6,106
Scholar Rock Holding Corp SRRK
Common Stock
2024-11-25 Sell 30,683 $40.14 1,231,616
Crescent Biopharma Inc GLYC
Common Stock
2024-08-08 Sell 260,873 $0.19 49,566
Crescent Biopharma Inc GLYC
Common Stock
2024-08-07 Sell 61,488 $0.18 11,068
Crescent Biopharma Inc GLYC
Common Stock
2024-08-06 Sell 55,732 $0.18 10,032
Crescent Biopharma Inc GLYC
Common Stock
2024-08-05 Sell 164,523 $0.19 31,259
Crescent Biopharma Inc GLYC
Common Stock
2024-08-02 Sell 286,200 $0.20 57,240
Crescent Biopharma Inc GLYC
Common Stock
2024-08-01 Sell 63,564 $0.22 13,984
Crescent Biopharma Inc GLYC
Common Stock
2024-07-30 Sell 756,835 $0.22 166,504
Crescent Biopharma Inc GLYC
Common Stock
2024-07-29 Sell 363,949 $0.24 87,348
showing 20 of 21 most recent transactions
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