MONTGOMERY DAVID

Officer · SGI, TPX

As of 2026-09-16, MONTGOMERY DAVID has 58 Form 4 transactions on record across 2 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

Direct: $1.1MIndirect: $0$1.1Mas of 2026-09-16
  • Direct $1.1M
  • Indirect $0
SGIdirect9,015 sh$579K
TPXdirect8,970 sh$517K

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

SGI · 35 trades
2026-02-26: Award / grant, 9,015 sh ($0)2026-01-02: Withheld for tax, 4,521 sh ($401K)2026-01-02: Withheld for tax, 1,974 sh ($175K)2026-01-02: Withheld for tax, 1,683 sh ($149K)2026-01-02: Withheld for tax, 1,392 sh ($124K)2026-01-02: Withheld for tax, 1,227 sh ($109K)2026-01-02: Withheld for tax, 1,219 sh ($108K)2026-01-02: Withheld for tax, 1,055 sh ($94K)2026-01-02: Option exercise, 9,619 sh ($0)2026-01-02: Option exercise, 2,961 sh ($0)2026-01-02: Option exercise, 2,243 sh ($0)2026-01-02: Award / grant, 5,635 sh ($0)2026-01-02: Option exercise, 4,198 sh ($0)2026-01-02: Option exercise, 2,609 sh ($0)2026-01-02: Option exercise, 3,579 sh ($0)2026-01-02: Option exercise, 2,593 sh ($0)2026-01-02: Option exercise, 9,619 sh ($0)2026-01-02: Option exercise, 2,961 sh ($0)2026-01-02: Option exercise, 2,243 sh ($0)2026-01-02: Option exercise, 2,609 sh ($0)2026-01-02: Option exercise, 3,579 sh ($0)2026-01-02: Option exercise, 2,593 sh ($0)2026-01-02: Option exercise, 4,198 sh ($0)2025-11-13: Gift, 40,000 sh ($0)2025-06-11: Sale, 45,826 sh ($3.0M)2025-06-11: Sale, 30,182 sh ($2.0M)2025-06-11: Option exercise, 63,384 sh ($1.1M)2025-06-11: Option exercise, 37,624 sh ($587K)2025-06-11: Option exercise, 63,384 sh ($0)2025-06-11: Option exercise, 37,624 sh ($0)2025-03-13: Gift, 17,000 sh ($0)2025-03-03: Sale, 32,785 sh ($2.1M)2025-03-03: Option exercise, 50,000 sh ($869K)2025-03-03: Option exercise, 50,000 sh ($0)2025-02-28: Award / grant, 12,592 sh ($0)
TPX · 23 trades
2025-01-03: Withheld for tax, 8,882 sh ($495K)2025-01-03: Withheld for tax, 4,521 sh ($252K)2025-01-03: Withheld for tax, 2,221 sh ($124K)2025-01-03: Withheld for tax, 1,683 sh ($94K)2025-01-03: Withheld for tax, 1,389 sh ($77K)2025-01-03: Withheld for tax, 1,227 sh ($68K)2025-01-03: Withheld for tax, 1,219 sh ($68K)2025-01-03: Option exercise, 9,619 sh ($0)2025-01-03: Option exercise, 2,955 sh ($0)2025-01-03: Option exercise, 18,897 sh ($0)2025-01-03: Option exercise, 18,897 sh ($0)2025-01-03: Option exercise, 2,609 sh ($0)2025-01-03: Option exercise, 2,955 sh ($0)2025-01-03: Option exercise, 3,579 sh ($0)2025-01-03: Option exercise, 2,593 sh ($0)2025-01-03: Award / grant, 8,970 sh ($0)2025-01-03: Option exercise, 4,724 sh ($0)2025-01-03: Option exercise, 2,609 sh ($0)2025-01-03: Option exercise, 2,593 sh ($0)2025-01-03: Option exercise, 4,724 sh ($0)2025-01-03: Option exercise, 3,579 sh ($0)2025-01-03: Option exercise, 9,619 sh ($0)2024-12-06: Gift, 50,000 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-06-11SGISale45,826 @ $65.67$3.0M−4.8% of holding914,021Form 4
2025-06-11SGISale30,182 @ $65.69$2.0M−3.3% of holding883,839Form 4
2025-03-03SGISale32,785 @ $62.88$2.1M−3.6% of holding875,839Form 4
55 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-02-26SGIAward / grant9,0159,015Form 4
2026-01-02SGIWithheld for tax4,521856,346Form 4
2026-01-02SGIWithheld for tax1,974858,570Form 4
2026-01-02SGIWithheld for tax1,683847,109Form 4
2026-01-02SGIWithheld for tax1,392851,248Form 4
2026-01-02SGIWithheld for tax1,227848,491Form 4
2026-01-02SGIWithheld for tax1,219845,213Form 4
2026-01-02SGIWithheld for tax1,055849,679Form 4
2026-01-02SGIOption exercise9,619860,867Form 4
2026-01-02SGIOption exercise2,961852,640Form 4
2026-01-02SGIOption exercise2,243850,734Form 4
2026-01-02SGIAward / grant5,6355,635Form 4
2026-01-02SGIOption exercise4,1988,394Form 4
2026-01-02SGIOption exercise2,609849,718Form 4
2026-01-02SGIOption exercise3,579848,792Form 4
2026-01-02SGIOption exercise2,593846,432Form 4
2026-01-02SGIOption exercise9,6199,622Form 4
2026-01-02SGIOption exercise2,9610Form 4
2026-01-02SGIOption exercise2,2436,727Form 4
2026-01-02SGIOption exercise2,6095,216Form 4
2026-01-02SGIOption exercise3,5793,578Form 4
2026-01-02SGIOption exercise2,5930Form 4
2026-01-02SGIOption exercise4,198860,544Form 4
2025-11-13SGIGift40,000843,839Form 4
2025-06-11SGIOption exercise63,384922,223Form 4
2025-06-11SGIOption exercise37,624959,847Form 4
2025-06-11SGIOption exercise63,3840Form 4
2025-06-11SGIOption exercise37,6240Form 4
2025-03-13SGIGift17,000858,839Form 4
2025-03-03SGIOption exercise50,000908,624Form 4
2025-03-03SGIOption exercise50,00063,384Form 4
2025-02-28SGIAward / grant12,59212,592Form 4
2025-01-03TPXWithheld for tax8,882851,960Form 4
2025-01-03TPXWithheld for tax4,521858,624Form 4
2025-01-03TPXWithheld for tax2,221837,293Form 4
2025-01-03TPXWithheld for tax1,683840,563Form 4
2025-01-03TPXWithheld for tax1,389853,526Form 4
2025-01-03TPXWithheld for tax1,227841,945Form 4
2025-01-03TPXWithheld for tax1,219838,667Form 4
2025-01-03TPXOption exercise9,61919,241Form 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.