Diamond Matthew K 4

What Happened

• Matthew K. Diamond, Chief Accounting Officer of Star Equity Holdings, received 3,993 restricted stock units (RSUs) that vested on March 19, 2026 (reported as an acquisition at $0.00 per share).
• To satisfy the tax withholding due on the vesting, 551 shares were withheld/disposed at $9.92 per share, yielding $5,466 (reported as a disposal for tax withholding).
• This is an award/vesting event (not an open-market purchase or sale); the withheld shares are routine tax-withholding, not a market sale for cash.

Key Details

• Transaction date: March 19, 2026; Form 4 filed March 23, 2026 (timely within required business-day filing window).
• Award: 3,993 RSUs acquired at $0.00 (vested RSUs).
• Tax withholding: 551 shares disposed at $9.92 each, totaling $5,466.
• Reported holdings after the transaction (per filing footnote): includes 6,889 RSUs credited to the account and 14,049 shares of common stock.
• Footnotes of note:
  • F1: RSUs were granted on January 24, 2025; performance conditions were satisfied as of March 19, 2026. The original RSU grant vests time-based 33%/33%/34% over three years (1,318 / 1,318 / 1,357).
  • F2: The 551-share disposal represents withholding to satisfy tax obligations on vesting.
  • F3: Clarifies the reporting person’s holdings include both RSUs and outstanding common shares.

Context

• This filing documents vested equity (award) and a routine tax-withholding disposition—common when RSUs vest. It should not be read as a directional buy/sell signal by itself; the only cash event here is the withholding to cover taxes.