Snyder Mark Howard
Officer · HALO
As of 2026-09-16, Snyder Mark Howard has 44 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 $1.1M
- Indirect $0
| HALO | direct | 10,068 sh | $1.1M |
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 |
|---|
44 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-12 | HALO | Withheld for tax | 2,715 | 49,929 | Form 4 |
| 2026-06-12 | HALO | Option exercise | 5,034 | 10,068 | Form 4 |
| 2026-06-12 | HALO | Option exercise | 5,034 | 52,644 | Form 4 |
| 2026-02-23 | HALO | Withheld for tax | 3,782 | 47,610 | Form 4 |
| 2026-02-23 | HALO | Option exercise | 7,011 | 51,392 | Form 4 |
| 2026-02-23 | HALO | Option exercise | 7,011 | 14,022 | Form 4 |
| 2026-02-20 | HALO | Withheld for tax | 2,876 | 44,381 | Form 4 |
| 2026-02-20 | HALO | Option exercise | 5,332 | 15,995 | Form 4 |
| 2026-02-20 | HALO | Option exercise | 5,332 | 47,257 | Form 4 |
| 2026-02-16 | HALO | Withheld for tax | 6,481 | 41,925 | Form 4 |
| 2026-02-16 | HALO | Withheld for tax | 2,587 | 36,390 | Form 4 |
| 2026-02-16 | HALO | Option exercise | 12,016 | 0 | Form 4 |
| 2026-02-16 | HALO | Option exercise | 4,796 | 4,796 | Form 4 |
| 2026-02-16 | HALO | Option exercise | 12,016 | 48,406 | Form 4 |
| 2026-02-16 | HALO | Option exercise | 4,796 | 38,977 | Form 4 |
| 2026-02-09 | HALO | Award / grant | 17,396 | 17,396 | Form 4 |
| 2026-02-09 | HALO | Award / grant | 29,502 | 29,502 | Form 4 |
| 2026-02-09 | HALO | Award / grant | 7,808 | 45,127 | Form 4 |
| 2026-02-09 | HALO | Award / grant | 4,651 | 12,016 | Form 4 |
| 2026-02-09 | HALO | Award / grant | 18,730 | 18,730 | Form 4 |
| 2026-01-03 | HALO | Withheld for tax | 4,243 | 34,181 | Form 4 |
| 2026-01-03 | HALO | Option exercise | 7,611 | 38,424 | Form 4 |
| 2026-01-03 | HALO | Option exercise | 7,611 | 0 | Form 4 |
| 2025-06-12 | HALO | Withheld for tax | 2,711 | 30,813 | Form 4 |
| 2025-06-12 | HALO | Option exercise | 5,035 | 33,524 | Form 4 |
| 2025-06-12 | HALO | Option exercise | 5,035 | 15,102 | Form 4 |
| 2025-02-23 | HALO | Withheld for tax | 3,775 | 28,489 | Form 4 |
| 2025-02-23 | HALO | Option exercise | 7,012 | 21,033 | Form 4 |
| 2025-02-23 | HALO | Option exercise | 7,012 | 32,264 | Form 4 |
| 2025-02-20 | HALO | Award / grant | 21,327 | 21,327 | Form 4 |
| 2025-02-20 | HALO | Award / grant | 22,603 | 22,603 | Form 4 |
| 2025-02-16 | HALO | Withheld for tax | 9,373 | 23,038 | Form 4 |
| 2025-02-16 | HALO | Withheld for tax | 2,582 | 25,252 | Form 4 |
| 2025-02-16 | HALO | Option exercise | 4,796 | 9,592 | Form 4 |
| 2025-02-16 | HALO | Option exercise | 17,409 | 0 | Form 4 |
| 2025-02-16 | HALO | Option exercise | 4,796 | 27,834 | Form 4 |
| 2025-02-16 | HALO | Option exercise | 17,409 | 32,411 | Form 4 |
| 2025-02-12 | HALO | Award / grant | 4,698 | 7,365 | Form 4 |
| 2025-02-12 | HALO | Award / grant | 30,050 | 30,050 | Form 4 |
| 2025-02-12 | HALO | Award / grant | 7,269 | 7,269 | 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.