Waterman Michael
Officer · ACVA
As of 2026-09-16, Waterman Michael has 78 Form 4 transactions on record across 1 company — 15 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 $8.4M
- Indirect $0
| ACVA | direct | 805,683 sh | $8.4M |
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 |
|---|---|---|---|---|---|---|---|
| 2026-02-26 | ACVA | Purchase | 214,600 @ $4.66 | $1.0M | +60.5% of holding | 569,102 | Form 4 |
| 2025-07-08 | ACVA | Sale | 34,339 @ $16.05 | $551K | −8.3% of holding | 379,957 | Form 4 |
| 2025-06-10 | ACVA | Sale | 22,171 @ $16.75 | $371K | −5.2% of holding | 405,610 | Form 4 |
| 2025-05-13 | ACVA | Sale | 223,330 @ $17.00 | $3.8M | −32.4% of holding | 466,548 | Form 4 |
| 2025-03-25 | ACVA | Sale | 115,987 @ $16.10 | $1.9M | −26.1% of holding | 327,564 | Form 4 |
| 2025-02-04 | ACVA | Sale | 15,000 @ $20.27 | $304K | −4.6% of holding | 311,354 | Form 4 |
| 2025-01-08 | ACVA | Sale | 9,985 @ $20.24 | $202K | −3.1% of holding | 311,354 | Form 4 |
| 2025-01-07 | ACVA | Sale | 30,162 @ $20.53 | $619K | −8.7% of holding | 314,738 | Form 4 |
| 2024-12-10 | ACVA | Sale | 15,000 @ $21.81 | $327K | −4.3% of holding | 337,842 | Form 4 |
69 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-07-01 | ACVA | Withheld for tax | 8,824 | 816,604 | Form 4 |
| 2026-07-01 | ACVA | Withheld for tax | 4,919 | 805,683 | Form 4 |
| 2026-07-01 | ACVA | Withheld for tax | 4,365 | 812,239 | Form 4 |
| 2026-07-01 | ACVA | Withheld for tax | 3,459 | 808,780 | Form 4 |
| 2026-04-01 | ACVA | Withheld for tax | 4,919 | 833,252 | Form 4 |
| 2026-04-01 | ACVA | Withheld for tax | 4,365 | 825,428 | Form 4 |
| 2026-04-01 | ACVA | Withheld for tax | 3,459 | 829,793 | Form 4 |
| 2026-04-01 | ACVA | Award / grant | 269,069 | 838,171 | Form 4 |
| 2026-01-02 | ACVA | Withheld for tax | 5,582 | 354,502 | Form 4 |
| 2026-01-02 | ACVA | Withheld for tax | 4,399 | 362,815 | Form 4 |
| 2026-01-02 | ACVA | Withheld for tax | 3,924 | 358,891 | Form 4 |
| 2025-10-01 | ACVA | Withheld for tax | 4,919 | 375,038 | Form 4 |
| 2025-10-01 | ACVA | Withheld for tax | 4,365 | 367,214 | Form 4 |
| 2025-10-01 | ACVA | Withheld for tax | 3,459 | 371,579 | Form 4 |
| 2025-07-08 | ACVA | Option exercise | 21,429 | 414,296 | Form 4 |
| 2025-07-08 | ACVA | Option exercise | 21,429 | 259,835 | Form 4 |
| 2025-07-01 | ACVA | Withheld for tax | 4,919 | 397,232 | Form 4 |
| 2025-07-01 | ACVA | Withheld for tax | 4,365 | 392,867 | Form 4 |
| 2025-07-01 | ACVA | Withheld for tax | 3,459 | 402,151 | Form 4 |
| 2025-06-10 | ACVA | Option exercise | 21,428 | 427,781 | Form 4 |
| 2025-06-10 | ACVA | Option exercise | 21,428 | 281,264 | Form 4 |
| 2025-05-13 | ACVA | Option exercise | 179,503 | 669,381 | Form 4 |
| 2025-05-13 | ACVA | Option exercise | 20,497 | 689,878 | Form 4 |
| 2025-05-13 | ACVA | Option exercise | 179,503 | 0 | Form 4 |
| 2025-05-13 | ACVA | Option exercise | 20,497 | 302,692 | Form 4 |
| 2025-04-02 | ACVA | Award / grant | 177,453 | 489,878 | Form 4 |
| 2025-04-01 | ACVA | Withheld for tax | 4,919 | 315,884 | Form 4 |
| 2025-04-01 | ACVA | Withheld for tax | 4,565 | 322,999 | Form 4 |
| 2025-04-01 | ACVA | Withheld for tax | 3,459 | 312,425 | Form 4 |
| 2025-04-01 | ACVA | Withheld for tax | 2,196 | 320,803 | Form 4 |
| 2025-03-25 | ACVA | Option exercise | 100,000 | 443,551 | Form 4 |
| 2025-03-25 | ACVA | Option exercise | 100,000 | 179,503 | Form 4 |
| 2025-03-04 | ACVA | Award / grant | 33,960 | 356,915 | Form 4 |
| 2025-03-04 | ACVA | Withheld for tax | 13,364 | 343,551 | Form 4 |
| 2025-02-04 | ACVA | Conversion | 15,000 | 11,601 | Form 4 |
| 2025-02-04 | ACVA | Option exercise | 15,000 | 26,601 | Form 4 |
| 2025-02-04 | ACVA | Option exercise | 15,000 | 279,503 | Form 4 |
| 2025-02-04 | ACVA | Option exercise | 15,000 | 326,354 | Form 4 |
| 2025-02-04 | ACVA | Option exercise | 15,000 | 326,354 | Form 4 |
| 2025-01-08 | ACVA | Conversion | 6,601 | 11,601 | 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.