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CRESCENT BIOPHARMA, INC. — Insider Transactions

Form 4 filings by directors, officers, and 10%+ shareholders

SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.

Overview All Filings Financials Insiders
Insider Title Type Shares Price Value Date
Pinkas Jan Chief Scientific Officer Award / Grant 17,507 Dec 15, 2025
Doughty Christopher Grant Chief Business Officer Award / Grant 8,000 Dec 15, 2025
Brumm Joshua T Chief Executive Officer Award / Grant 10,000 Dec 15, 2025
Scalzo Richard William Chief Financial Officer Award / Grant 5,000 Dec 15, 2025
McNeill Jonathan President and COO Award / Grant 6,000 Dec 15, 2025
Im Ellie Eunkyung Chief Medical Officer Award / Grant 16,298 Dec 15, 2025
Lynch Ryan See Remarks Award / Grant 4,000 Dec 15, 2025
Bispham Barbara Harlin See Remarks Award / Grant 12,422 Dec 15, 2025
Harwin Peter Evan Purchase 1,360,000 $13.41 $18,237,600 Dec 4, 2025
BVF GP HOLDINGS LLC Other 657,308 Jun 13, 2025
Siren, L.L.C. Sale 260,873 $0.19 $49,566 Aug 7, 2024
Invus Public Equities Advisors, LLC Sale 55,732 $0.18 $10,032 Aug 5, 2024
Siren, L.L.C. Sale 63,564 $0.22 $13,984 Aug 2, 2024
Siren, L.L.C. Sale 756,835 $0.22 $166,504 Jul 29, 2024
Rock Edwin Chief Medical Officer Purchase 115,000 $0.27 $31,050 Jun 20, 2024
Hahn Brian M. SVP Finance, CFO Purchase 17,500 $0.25 $4,375 Jun 18, 2024
JUNIUS DANIEL M Award / Grant 5,209 $3.00 $15,627 Mar 29, 2024
Goldberg Mark Alan Award / Grant 4,584 $3.00 $13,752 Mar 29, 2024
King Rachel K. Award / Grant 3,334 $3.00 $10,002 Mar 29, 2024
Andrews Patricia S Award / Grant 5,191 $2.36 $12,251 Dec 29, 2023
King Rachel K. Award / Grant 4,238 $2.36 $10,002 Dec 29, 2023
Goldberg Mark Alan Award / Grant 5,827 $2.36 $13,752 Dec 29, 2023
Goldberg Mark Alan Award / Grant 9,167 $1.50 $13,751 Sep 30, 2023
Andrews Patricia S Award / Grant 8,167 $1.50 $12,251 Sep 30, 2023
King Rachel K. Award / Grant 6,667 $1.50 $10,001 Sep 30, 2023
Rock Edwin Chief Medical Officer Purchase 35,000 $1.38 $48,300 Sep 22, 2023
Koenig Scott Option Exercise 21,000 $0.60 $12,600 Jun 1, 2023
Hahn Brian M. SVP Finance, CFO Sale 3,700 $1.95 $7,215 May 17, 2023
JUNIUS DANIEL M Purchase 30,000 $1.56 $46,800 May 10, 2023
Johnson Bruce S SVP & Chief Commercial Officer Purchase 13,500 $1.57 $21,195 May 8, 2023
Wittouck Amaury Purchase 100,000 $1.70 $170,000 Feb 24, 2023
Artal Group S.A. Purchase 150,000 $1.79 $268,500 Feb 21, 2023
Wittouck Amaury Purchase 1,000,000 $2.16 $2,160,000 Feb 17, 2023
Wittouck Amaury Purchase 11,451 $3.24 $37,101 Feb 9, 2023
Koenig Scott Option Exercise 10,500 $2.55 $26,775 Jan 27, 2023
SANDELL SCOTT D Sale 358,371 $3.26 $1,168,289 Jan 25, 2023
SANDELL SCOTT D Sale 32,139 $2.76 $88,704 Jan 5, 2023
SANDELL SCOTT D Sale 56,054 $2.91 $163,117 Jan 3, 2023
Rock Edwin Chief Medical Officer Purchase 110,000 $2.25 $247,500 Dec 22, 2022
JUNIUS DANIEL M Purchase 20,000 $1.87 $37,400 Nov 17, 2022
Rock Edwin Chief Medical Officer Purchase 100,000 $1.66 $166,000 Nov 14, 2022
PEARSON TIMOTHY R Purchase 19,400 $1.29 $25,026 Nov 11, 2022
Semerjian Harout Chief Executive Officer Purchase 25,000 $1.29 $32,250 Nov 11, 2022
Hahn Brian M. SVP Finance, CFO Purchase 20,000 $1.06 $21,200 Nov 11, 2022
Magnani John L. SVP of Research, CSO Purchase 45,045 $1.17 $52,703 Nov 11, 2022
Girard Armand SVP, Chief Business Officer Purchase 6,500 $1.05 $6,825 Nov 11, 2022
King Rachel K. W 11,641 Aug 2, 2022
Magnani John L. SVP of Research, CSO Sale 3,227 $1.09 $3,517 Mar 9, 2022
Girard Armand SVP, Chief Business Officer Sale 2,339 $1.09 $2,550 Mar 9, 2022
Hahn Brian M. SVP Finance, CFO Sale 2,917 $1.09 $3,180 Mar 9, 2022