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Brooke William W profile photo

William W. Brooke

CIK: 0001545337

Transaction Breakdown

Open Market Buys (P)1 (33.3%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (66.7%)

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)

MAXCYTE, INC. logo
MXCT

MAXCYTE, INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (3 total)

  • MAXCYTE, INC. logo
    MXCT

    MAXCYTE, INC.

    Jun 17, 2026
    Award(A)
    Direct
    30.4K shares-
  • MAXCYTE, INC. logo
    MXCT

    MAXCYTE, INC.

    Aug 13, 2025
    Purchase(P)
    Direct
    50K shares at avg. $1.29$65K
  • MAXCYTE, INC. logo
    MXCT

    MAXCYTE, INC.

    Jun 18, 2025
    Award(A)
    Direct
    29.2K shares-

1-3 of 3

About Brooke William W

Brooke William W (SEC CIK 0001545337) files insider reports with the SEC as Director of MAXCYTE, INC. (MXCT).

Signal8 holds 3 ownership filings by Brooke William W, all Form 4s, filed between Jun 23, 2025 and Jun 22, 2026. Those filings report 3 transactions, from Jun 18, 2025 to Jun 17, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Brooke William W's filings is in ROCKVILLE, MD.

Recent filings by Brooke William W

  • Jun 17, 2026: Grant or award of MXCT shares (Form 4, code A).
  • Aug 13, 2025: Open-market purchase of MXCT shares (Form 4, code P).
  • Jun 18, 2025: Grant or award of MXCT shares (Form 4, code A).

Other insiders filing for MAXCYTE, INC. (MXCT)

How to read Form 4 transaction codes