BALTHROP PATRICK J 4

What Happened
Patrick J. Balthrop, a director of MaxCyte, received two equity awards on June 17, 2026: 30,421 restricted stock units (RSUs) and 49,579 RSUs (listed as a derivative), for a total of 80,000 RSUs. The filing reports $0.00 paid for each grant (typical for RSU awards); the RSUs represent contingent rights to receive shares of the company’s common stock upon vesting.

Key Details

• Transaction date: 2026-06-17; reported on Form 4 filed 2026-06-22. The filing was submitted five days after the transaction (Form 4s are normally due within two business days), so this appears to be a late filing.
• Grant amounts and prices: 30,421 RSUs @ $0.00 and 49,579 RSUs @ $0.00 (derivative).
• Vesting: Footnotes state these are RSUs and that the annual director grant vests on June 17, 2027, subject to the reporting person’s continuous service on that date.
• Shares owned after transaction: Not specified in the provided filing.
• Transaction code: A = Award/Grant. No 10b5-1, tax-withholding, or immediate sale noted in the filing.

Context
These awards are routine equity compensation for a non-employee director under MaxCyte’s Equity Grant Policy. RSUs are contingent grants that convert to actual shares only upon vesting (not an immediate market purchase or sale), so they do not by themselves indicate that the insider bought or sold shares in the open market.