ASSEMBLY BIOSCIENCES, INC.·4

Jun 5, 4:50 PM ET

Mahony Susan 4

4 · ASSEMBLY BIOSCIENCES, INC. · Filed Jun 5, 2026

Research Summary

AI-generated summary of this filing

Updated

Assembly Biosciences Director Susan Mahony Receives 8,000-Option Award

What Happened

  • Susan Mahony, a director of Assembly Biosciences (ASMB), was granted options covering 8,000 shares on 2026-06-04. The Form 4 reports the acquisition as a derivative grant at $0.00 (this reflects an option award, not a cash purchase or immediate sale). This is an award/option grant — not a sale — and does not represent exercised or sold shares.

Key Details

  • Transaction date: 2026-06-04; Form 4 filed: 2026-06-05 (timely filing).
  • Transaction type/code: A — Grant / award (derivative security: stock options).
  • Shares/options granted: 8,000; acquisition price reported: $0.00 on Form 4.
  • Shares owned after transaction: Not provided in the supplied excerpt of the filing.
  • Footnote: Grant of stock options that vest, assuming continuous service, on the earlier of (1) June 4, 2027 and (2) the issuer’s 2027 annual meeting of stockholders.
  • No indication in this filing that options were exercised or shares sold.

Context

  • This was a derivative grant (stock options). Options give the holder the right to buy shares later subject to vesting and any exercise price; they are common compensation for executives and directors.
  • Because the grant vests over time, it’s not an immediate purchase or sale and doesn’t by itself signal a near-term change in ownership. No exercise price or immediate sale information is included in the provided data.

Insider Transaction Report

Form 4
Period: 2026-06-04
Mahony Susan
Director
Transactions
  • Award

    Stock Option (right to buy)

    [F1]
    2026-06-04+8,0008,000 total
    Exercise: $24.11Exp: 2036-06-04Common Stock (8,000 underlying)
Footnotes (1)
  • [F1]Grant of stock options. The stock options vest, assuming continuous service, upon the earlier of (1) June 4, 2027 and (2) the date of the Issuer's 2027 annual meeting of stockholders.
Signature
/s/ John O. Gunderson, as Attorney-in-Fact|2026-06-05

Documents

1 file
  • 4
    ownership.xmlPrimary

    4