Weymouth Katharine
Director · XMTR, RSG, GHC, CABO
As of 2026-09-16, Weymouth Katharine has 37 Form 4 transactions on record across 4 companies — 24 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
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-31 | XMTR | Sale | 5,000 @ $95.23 | $476K | −12.4% of holding | 35,345 | Form 4 |
| 2026-08-28 | XMTR | Sale | 5,000 @ $94.30 | $472K | −12.4% of holding | 35,345 | Form 4 |
| 2026-02-27 | XMTR | Purchase | 1,215 @ $41.15 | $50K | +50.6% of holding | 3,615 | Form 4 |
| 2025-12-09 | RSG | Purchase | 478 @ $209.46 | $100K | +9.1% of holding | 5,740 | Form 4 |
| 2025-06-16 | CABO | Purchase | 150 @ $130.88 | $20K | +7.0% of holding | 2,294 | Form 4 |
| 2024-12-05 | RSG | Sale | 1,859 @ $215.27 | $400K | −67.9% of holding | 879 | Form 4 |
31 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-31 | XMTR | Option exercise | 5,000 | 40,345 | Form 4 |
| 2026-08-31 | XMTR | Option exercise | 5,000 | 0 | Form 4 |
| 2026-08-28 | XMTR | Option exercise | 5,000 | 40,345 | Form 4 |
| 2026-08-28 | XMTR | Option exercise | 5,000 | 0 | Form 4 |
| 2026-07-15 | RSG | Award / grant | 11 | 3,715 | Form 4 |
| 2026-05-26 | GHC | Other acquisition | 6,000 | 30,000 | Form 4 |
| 2026-05-26 | GHC | Other acquisition | 6,000 | 30,000 | Form 4 |
| 2026-05-26 | GHC | Other acquisition | 6,000 | 7,615 | Form 4 |
| 2026-05-26 | GHC | Other acquisition | 6,000 | 7,615 | Form 4 |
| 2026-05-14 | CABO | Award / grant | 3,031 | 5,195 | Form 4 |
| 2026-04-15 | RSG | Award / grant | 11 | 3,704 | Form 4 |
| 2026-03-10 | XMTR | Award / grant | 3,681 | 33,989 | Form 4 |
| 2026-03-10 | XMTR | Award / grant | 1,356 | 35,345 | Form 4 |
| 2026-01-31 | RSG | Option exercise | 1,858 | 0 | Form 4 |
| 2026-01-31 | RSG | Option exercise | 1,858 | 7,598 | Form 4 |
| 2026-01-15 | RSG | Award / grant | 16 | 5,551 | Form 4 |
| 2026-01-02 | RSG | Award / grant | 1,095 | 1,095 | Form 4 |
| 2025-12-29 | GHC | Other acquisition | 36,000 | 36,000 | Form 4 |
| 2025-12-29 | GHC | Other acquisition | 36,000 | 36,000 | Form 4 |
| 2025-10-15 | RSG | Award / grant | 12 | 4,440 | Form 4 |
| 2025-07-15 | RSG | Award / grant | 10 | 4,428 | Form 4 |
| 2025-05-15 | CABO | Award / grant | 941 | 2,144 | Form 4 |
| 2025-04-15 | RSG | Award / grant | 10 | 4,418 | Form 4 |
| 2025-03-11 | XMTR | Award / grant | 2,064 | 30,308 | Form 4 |
| 2025-03-11 | XMTR | Award / grant | 5,689 | 28,244 | Form 4 |
| 2025-01-31 | RSG | Option exercise | 1,775 | 2,654 | Form 4 |
| 2025-01-31 | RSG | Option exercise | 2,608 | 0 | Form 4 |
| 2025-01-31 | RSG | Option exercise | 1,775 | 0 | Form 4 |
| 2025-01-31 | RSG | Option exercise | 2,608 | 5,262 | Form 4 |
| 2025-01-15 | RSG | Award / grant | 24 | 8,791 | Form 4 |
| 2025-01-02 | RSG | Award / grant | 1,150 | 1,150 | 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.