PLUS THERAPEUTICS, INC.·4

May 18, 4:11 PM ET

Guse Kyle 4

4 · PLUS THERAPEUTICS, INC. · Filed May 18, 2026

Research Summary

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Updated

Plus Therapeutics (PSTV) Director Kyle Guse Receives RSU Award

What Happened

  • Kyle Guse, a director of Plus Therapeutics (PSTV), was granted two restricted stock unit (RSU) awards on May 14, 2026 — 3,686 RSUs each, for a total of 7,372 RSUs. The awards are recorded at $0.00 per share (award/grant, Form 4 code A) because they are compensation-based derivative securities, not open-market purchases.

Key Details

  • Transaction date: May 14, 2026; Form 4 filed May 18, 2026 (timely filing).
  • Award size and price: Two grants of 3,686 RSUs (total 7,372 RSUs) at $0.00 per share (derivative RSUs).
  • Amount owned after transaction: Not disclosed in the Form 4 provided.
  • Footnote F1: Each RSU is a contingent right to one share; vesting ratably over four quarters, with 1/4 vesting on July 1, 2026 and the remainder vesting quarterly thereafter.
  • Footnote F2: Describes a monthly 12-month vesting schedule for options (full vest at the 2027 annual meeting); no option exercise/option grant is reported in these transactions.
  • Transaction code: A = Award/Grant (derivative RSUs).

Context

  • RSUs are not immediate shares — they convert to common stock only as they vest, so these grants do not represent an immediate purchase or sale. Grants are common as compensation for directors and executives and should be viewed as part of pay arrangements rather than a direct trading signal.

Insider Transaction Report

Form 4
Period: 2026-05-14
Guse Kyle
Director
Transactions
  • Award

    Restricted Stock Units

    [F1]
    2026-05-14+3,6863,686 total
    Exercise: $0.00Common Stock (3,686 underlying)
  • Award

    Stock Option (Right to Buy)

    [F2]
    2026-05-14+3,6863,686 total
    Exercise: $5.76Exp: 2036-05-14Common Stock (3,686 underlying)
Footnotes (2)
  • [F1]Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs awarded vest ratably over four quarters in substantially equal 1/4th increments, commencing with 1/4th vesting on July 1, 2026 and the remainder vesting quarterly thereafter.
  • [F2]The options vest monthly over 12 months from the grant date in substantially equal monthly increments, provided that the options vest in full on the Issuer's 2027 Annual Stockholder Meeting, subject to the Reporting Person's continued service to the Issuer through each applicable vesting date or, if earlier, such annual meeting.
Signature
Andrew Sims, as attorney-in-fact|2026-05-18

Documents

1 file
  • 4
    ownership.xmlPrimary

    4