Brown Christopher D.
Director · Officer · MASS
As of 2026-09-16, Brown Christopher D. has 37 Form 4 transactions on record across 1 company — 23 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
- Direct $7.7M
- Indirect $0
| MASS | direct | 775,559 sh | $7.7M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-02 | MASS | Sale | 30,000 @ $10.58 | $317K | −3.7% of holding | 775,559 | Form 4 |
| 2026-08-11 | MASS | Sale | 8,358 @ $9.23 | $77K | −1.0% of holding | 805,559 | Form 4 |
| 2026-08-10 | MASS | Sale | 9,442 @ $9.03 | $85K | −1.1% of holding | 813,917 | Form 4 |
| 2026-08-05 | MASS | Sale | 20,000 @ $8.49 | $170K | −2.4% of holding | 823,359 | Form 4 |
| 2026-07-02 | MASS | Sale | 2,200 @ $9.02 | $20K | −0.3% of holding | 843,359 | Form 4 |
| 2026-06-30 | MASS | Sale | 20,000 @ $8.84 | $177K | −2.3% of holding | 845,559 | Form 4 |
| 2026-06-23 | MASS | Sale | 9,900 @ $9.04 | $89K | −1.1% of holding | 865,559 | Form 4 |
| 2026-06-04 | MASS | Sale | 100 @ $9.00 | $900 | −0.0% of holding | 875,459 | Form 4 |
| 2026-06-03 | MASS | Sale | 20,000 @ $8.73 | $175K | −2.2% of holding | 875,559 | Form 4 |
| 2026-05-28 | MASS | Sale | 30,000 @ $9.00 | $270K | −3.2% of holding | 895,559 | Form 4 |
| 2026-05-06 | MASS | Sale | 20,000 @ $7.23 | $145K | −2.1% of holding | 925,559 | Form 4 |
| 2026-04-10 | MASS | Sale | 17,578 @ $7.07 | $124K | −1.8% of holding | 945,559 | Form 4 |
| 2026-04-09 | MASS | Sale | 7,392 @ $7.04 | $52K | −0.8% of holding | 963,137 | Form 4 |
| 2026-04-08 | MASS | Sale | 15,030 @ $7.05 | $106K | −1.5% of holding | 970,529 | Form 4 |
| 2025-02-03 | MASS | Sale | 3,641 @ $2.33 | $9K | −0.4% of holding | 962,122 | Form 4 |
| 2025-02-03 | MASS | Sale | 2,459 @ $2.34 | $6K | −0.3% of holding | 965,763 | Form 4 |
| 2025-02-03 | MASS | Sale | 1,667 @ $2.36 | $4K | −0.2% of holding | 968,222 | Form 4 |
20 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-02-01 | MASS | Option exercise | 5,027 | 0 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 7,418 | 7,418 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 10,992 | 21,982 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 10,992 | 985,559 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 7,418 | 974,567 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 5,027 | 967,149 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 10,992 | 985,559 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 5,027 | 967,149 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 7,418 | 974,567 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 10,991 | 32,974 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 7,418 | 14,836 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 5,027 | 5,027 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 7,418 | 958,898 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 10,991 | 969,889 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 5,027 | 951,480 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 7,418 | 958,898 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 10,991 | 969,889 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 5,027 | 951,480 | Form 4 |
| 2024-12-19 | MASS | Option exercise | 55,131 | 946,453 | Form 4 |
| 2024-12-19 | MASS | Option exercise | 55,131 | 0 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.