Izenstark Gregory A.

Officer · CTRI

As of 2026-09-16, Izenstark Gregory A. has 11 Form 4 transactions on record across 1 company — 5 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: $1.7MIndirect: $0$1.7Mas of 2026-09-16
  • Direct $1.7M
  • Indirect $0
CTRIdirect87,808 sh$1.7M

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

CTRI · 11 trades
2026-02-25: Withheld for tax, 2,868 sh ($89K)2026-02-17: Award / grant, 11,309 sh ($0)2026-02-17: Option exercise, 16,111 sh ($0)2026-02-17: Option exercise, 16,111 sh2026-02-17: Option exercise, 16,111 sh2025-05-12: Withheld for tax, 13,071 sh ($255K)2025-05-12: Option exercise, 40,404 sh ($0)2025-05-12: Option exercise, 40,404 sh2025-05-12: Option exercise, 40,404 sh2025-02-25: Award / grant, 30,673 sh ($0)2025-02-25: Award / grant, 46,009 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
11 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-02-25CTRIWithheld for tax2,86887,808Form 4
2026-02-17CTRIAward / grant11,30974,565Form 4
2026-02-17CTRIOption exercise16,11116,111Form 4
2026-02-17CTRIOption exercise16,11190,676Form 4
2026-02-17CTRIOption exercise16,11190,676Form 4
2025-05-12CTRIWithheld for tax13,07132,583Form 4
2025-05-12CTRIOption exercise40,40430,673Form 4
2025-05-12CTRIOption exercise40,40445,654Form 4
2025-05-12CTRIOption exercise40,40445,654Form 4
2025-02-25CTRIAward / grant30,67371,077Form 4
2025-02-25CTRIAward / grant46,00946,009Form 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.