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James C. Hamilton

CIK: 0001830755

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)16 (88.9%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (11.1%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

ARROWHEAD PHARMACEUTICALS, INC. logo
ARWR

ARROWHEAD PHARMACEUTICALS, INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (18 total)

  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Apr 23, 2026
    Sale(S)
    Direct
    10K shares at avg. $75.00$750K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Mar 5, 2026
    Sale(S)
    Direct
    10K shares at avg. $64.19$642K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 6, 2026
    Award(A)
    Direct
    75K shares-
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 5, 2026
    Sale(S)
    Direct
    12.7K shares at avg. $63.95$813K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 5, 2026
    Sale(S)
    Direct
    1.2K shares at avg. $64.49$77K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 5, 2026
    Sale(S)
    Direct
    437 shares at avg. $65.97$29K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 5, 2026
    Sale(S)
    Direct
    309 shares at avg. $68.00$21K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 5, 2026
    Sale(S)
    Direct
    14.8K shares at avg. $63.01$932K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 5, 2026
    Sale(S)
    Direct
    4.6K shares at avg. $61.24$283K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 5, 2026
    Sale(S)
    Direct
    6.1K shares at avg. $62.28$379K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Oct 1, 2025
    Sale(S)
    Direct
    20K shares at avg. $35.00$700K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Sep 12, 2025
    Sale(S)
    Direct
    15K shares at avg. $30.00$450K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Sep 2, 2025
    Sale(S)
    Direct
    15K shares at avg. $25.00$375K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Aug 15, 2025
    Sale(S)
    Direct
    9.4K shares at avg. $20.00$188K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Aug 13, 2025
    Sale(S)
    Direct
    611 shares at avg. $20.00$12K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 6, 2025
    Sale(S)
    Direct
    21.8K shares at avg. $19.68$428K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 6, 2025
    Sale(S)
    Direct
    11K shares at avg. $20.11$221K
  • ARROWHEAD PHARMACEUTICALS, INC. logo
    ARWR

    ARROWHEAD PHARMACEUTICALS, INC.

    Jan 4, 2025
    Award(A)
    Direct
    100K shares-

1-18 of 18

About Hamilton James C

Hamilton James C (SEC CIK 0001830755) files insider reports with the SEC as Chief Medical Officer of ARROWHEAD PHARMACEUTICALS, INC. (ARWR).

Signal8 holds 9 ownership filings by Hamilton James C, all Form 4s, filed between Jan 7, 2025 and Apr 24, 2026. Those filings report 18 transactions, from Jan 4, 2025 to Apr 23, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Hamilton James C's filings is in PASADENA, CA.

Recent filings by Hamilton James C

  • Apr 23, 2026: Open-market sale of ARWR shares (Form 4, code S).
  • Mar 5, 2026: Open-market sale of ARWR shares (Form 4, code S).
  • Jan 6, 2026: Grant or award of ARWR shares (Form 4, code A).
  • Jan 5, 2026: Open-market sales of ARWR shares (7 lines, Form 4, code S).
  • Oct 1, 2025: Open-market sale of ARWR shares (Form 4, code S).

Other insiders filing for ARROWHEAD PHARMACEUTICALS, INC. (ARWR)

How to read Form 4 transaction codes