PETERSON MARK W
Officer · ZWS
As of 2026-09-17, PETERSON MARK W has 16 Form 4 transactions on record across 1 company — 10 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 August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $14.1M
- Indirect $0
| ZWS | direct | 308,814 sh | $14.1M |
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-04 | ZWS | Sale | 25,000 @ $53.02 | $1.3M | −7.5% of holding | 308,814 | Form 4 |
| 2026-02-17 | ZWS | Sale | 2,006 @ $50.86 | $102K | −0.6% of holding | 333,814 | Form 4 |
| 2026-02-11 | ZWS | Sale | 3,793 @ $51.48 | $195K | −1.1% of holding | 335,820 | Form 4 |
| 2026-02-10 | ZWS | Sale | 35,267 @ $51.80 | $1.8M | −9.6% of holding | 333,739 | Form 4 |
| 2026-02-05 | ZWS | Sale | 23,183 @ $51.40 | $1.2M | −7.3% of holding | 295,378 | Form 4 |
| 2025-11-12 | ZWS | Sale | 21,570 @ $48.48 | $1.0M | −6.3% of holding | 318,561 | Form 4 |
| 2025-08-27 | ZWS | Sale | 20,349 @ $46.44 | $945K | −5.6% of holding | 340,131 | Form 4 |
| 2025-07-31 | ZWS | Sale | 22,138 @ $43.05 | $953K | −5.8% of holding | 360,480 | Form 4 |
| 2025-05-13 | ZWS | Sale | 7,000 @ $37.31 | $261K | −1.8% of holding | 382,618 | Form 4 |
7 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-02-10 | ZWS | Award / grant | 5,874 | 339,613 | Form 4 |
| 2026-02-10 | ZWS | Award / grant | 5,874 | 339,613 | Form 4 |
| 2026-02-06 | ZWS | Award / grant | 73,628 | 369,006 | Form 4 |
| 2026-02-06 | ZWS | Award / grant | 73,628 | 369,006 | Form 4 |
| 2025-02-14 | ZWS | Award / grant | 8,458 | 389,618 | Form 4 |
| 2025-02-14 | ZWS | Award / grant | 8,458 | 389,618 | Form 4 |
| 2025-02-10 | ZWS | Withheld for tax | 2,750 | 381,160 | 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.