Knopp Kevin J.
Director · Officer · MASS
As of 2026-09-16, Knopp Kevin J. has 46 Form 4 transactions on record across 1 company — 26 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.
Pattern in the record: open-market sales filed in February in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $5.5M
- Indirect $0
| MASS | direct | 555,968 sh | $5.5M |
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-17 | MASS | Sale | 20,000 @ $10.35 | $207K | −3.5% of holding | 555,968 | Form 4 |
| 2026-08-13 | MASS | Sale | 7,622 @ $10.06 | $77K | −1.3% of holding | 575,968 | Form 4 |
| 2026-08-12 | MASS | Sale | 2,747 @ $10.07 | $28K | −0.5% of holding | 583,590 | Form 4 |
| 2026-08-11 | MASS | Sale | 115,748 @ $9.83 | $1.1M | −15.8% of holding | 616,507 | Form 4 |
| 2026-08-11 | MASS | Sale | 30,170 @ $10.16 | $307K | −4.9% of holding | 586,337 | Form 4 |
| 2026-08-10 | MASS | Sale | 348 @ $9.06 | $3K | −0.0% of holding | 732,255 | Form 4 |
| 2026-07-02 | MASS | Sale | 222 @ $9.07 | $2K | −0.0% of holding | 732,603 | Form 4 |
| 2026-06-26 | MASS | Sale | 2,798 @ $9.09 | $25K | −0.4% of holding | 732,825 | Form 4 |
| 2026-06-25 | MASS | Sale | 16,388 @ $9.10 | $149K | −2.2% of holding | 735,623 | Form 4 |
| 2026-06-24 | MASS | Sale | 40,535 @ $9.14 | $370K | −5.1% of holding | 752,011 | Form 4 |
| 2026-06-23 | MASS | Sale | 3,422 @ $9.06 | $31K | −0.4% of holding | 792,546 | Form 4 |
| 2026-02-02 | MASS | Sale | 34,764 @ $6.18 | $215K | −4.2% of holding | 795,968 | Form 4 |
| 2025-05-15 | MASS | Purchase | 15,000 @ $4.44 | $67K | +2.1% of holding | 722,733 | Form 4 |
| 2025-05-14 | MASS | Purchase | 15,000 @ $4.32 | $65K | +2.2% of holding | 707,733 | Form 4 |
| 2025-02-03 | MASS | Sale | 6,524 @ $2.32 | $15K | −0.9% of holding | 692,733 | Form 4 |
| 2025-02-03 | MASS | Sale | 5,159 @ $2.31 | $12K | −0.7% of holding | 699,257 | Form 4 |
| 2025-02-03 | MASS | Sale | 4,318 @ $2.33 | $10K | −0.6% of holding | 704,416 | Form 4 |
29 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-02-02 | MASS | Award / grant | 90,043 | 90,043 | Form 4 |
| 2026-02-02 | MASS | Award / grant | 205,978 | 205,978 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 13,449 | 13,448 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 66,288 | 132,576 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 17,007 | 34,014 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 11,255 | 0 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 66,288 | 830,732 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 11,255 | 733,988 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 13,449 | 747,437 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 17,007 | 764,444 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 11,255 | 733,988 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 13,449 | 747,437 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 17,007 | 764,444 | Form 4 |
| 2026-02-01 | MASS | Option exercise | 66,288 | 830,732 | Form 4 |
| 2025-03-03 | MASS | Award / grant | 198,864 | 198,864 | Form 4 |
| 2025-03-03 | MASS | Award / grant | 90,518 | 90,518 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 17,007 | 51,021 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 11,254 | 11,255 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 13,448 | 26,897 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 11,254 | 678,279 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 17,007 | 708,734 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 13,448 | 691,727 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 11,254 | 678,279 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 17,007 | 708,734 | Form 4 |
| 2025-02-01 | MASS | Option exercise | 13,448 | 691,727 | Form 4 |
| 2024-12-13 | MASS | Option exercise | 110,626 | 667,025 | Form 4 |
| 2024-12-13 | MASS | Option exercise | 47,418 | 556,399 | Form 4 |
| 2024-12-13 | MASS | Option exercise | 110,626 | 0 | Form 4 |
| 2024-12-13 | MASS | Option exercise | 47,418 | 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.