Kevin J. Knopp
CIK 1836523 · President and CEO · last filed 2026-07-07
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Loading insider history…
Disclosed Exposure
$12.75M
Companies
1
Total Filings
41
Lifetime Open-Market Net
-$9.14M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MASS | President and CEO | 1,273,826 | $10.01 | $12.75M | -$9.14M | 39 | 2026-07-07 |
Recent Filings · Page 4 of 5
41 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-07-19 | MASS | Sell (S) | −30,000 | -$521.1K | EDGAR |
| 2022-07-08 | MASS | Sell (S) | −1,453 | -$32.1K | EDGAR |
| 2022-06-22 | MASS | Sell (S) | −9,200 | -$138.6K | EDGAR |
| 2022-06-17 | MASS | Sell (S) | −20,800 | -$304.9K | EDGAR |
| 2022-03-03 | MASS | Grant (A) | — | $0 | EDGAR |
| 2021-11-02 | MASS | Sell (S) | −20,000 | -$692.4K | EDGAR |
| 2021-10-05 | MASS | Sell (S) | −20,000 | -$673.0K | EDGAR |
| 2021-09-03 | MASS | Sell (S) | −20,000 | -$718.2K | EDGAR |
| 2021-08-18 | MASS | Sell (S) | −35,000 | -$1.07M | EDGAR |
| 2021-04-30 | MASS | Conv (C) | +88,617 | $0 | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.