Taranto Eric Robert

Officer · MKSI

As of 2026-09-16, Taranto Eric Robert has 61 Form 4 transactions on record across 1 company — 32 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: $3.0MIndirect: $0$3.0Mas of 2026-09-16
  • Direct $3.0M
  • Indirect $0
MKSIdirect12,596 sh$3.0M

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

MKSI · 61 trades
2026-05-11: Sale, 2,849 sh ($911K)2026-03-06: Sale, 4,568 sh ($1.0M)2026-02-20: Sale, 1,453 sh ($360K)2026-02-17: Withheld for tax, 2,712 sh ($707K)2026-02-17: Option exercise, 1,167 sh2026-02-17: Option exercise, 976 sh2026-02-17: Option exercise, 348 sh2026-02-17: Option exercise, 914 sh2026-02-17: Option exercise, 1,764 sh2026-02-17: Option exercise, 348 sh2026-02-17: Option exercise, 914 sh2026-02-17: Option exercise, 1,764 sh2026-02-17: Award / grant, 1,759 sh2026-02-17: Option exercise, 976 sh2026-02-17: Option exercise, 1,167 sh2026-02-17: Option exercise, 348 sh2026-02-17: Option exercise, 1,764 sh2026-02-17: Award / grant, 1,759 sh2026-02-17: Option exercise, 1,303 sh2026-02-17: Option exercise, 1,167 sh2026-02-17: Option exercise, 976 sh2026-02-17: Option exercise, 348 sh2026-02-17: Option exercise, 914 sh2026-02-17: Option exercise, 1,764 sh2026-02-17: Option exercise, 1,303 sh2026-02-17: Option exercise, 1,167 sh2026-02-17: Option exercise, 1,303 sh2026-02-17: Option exercise, 914 sh2026-02-17: Option exercise, 1,303 sh2026-02-17: Option exercise, 976 sh2026-02-08: Award / grant, 3,504 sh2026-02-08: Award / grant, 3,504 sh2025-02-18: Withheld for tax, 1,760 sh ($182K)2025-02-18: Option exercise, 975 sh2025-02-18: Option exercise, 348 sh2025-02-18: Option exercise, 914 sh2025-02-18: Option exercise, 1,764 sh2025-02-18: Option exercise, 805 sh2025-02-18: Option exercise, 1,119 sh2025-02-18: Award / grant, 3,911 sh2025-02-18: Option exercise, 975 sh2025-02-18: Option exercise, 348 sh2025-02-18: Option exercise, 914 sh2025-02-18: Option exercise, 1,764 sh2025-02-18: Option exercise, 805 sh2025-02-18: Option exercise, 1,119 sh2025-02-18: Option exercise, 348 sh2025-02-18: Option exercise, 914 sh2025-02-18: Option exercise, 1,764 sh2025-02-18: Option exercise, 805 sh2025-02-18: Option exercise, 1,119 sh2025-02-18: Award / grant, 3,911 sh2025-02-18: Option exercise, 975 sh2025-02-18: Option exercise, 348 sh2025-02-18: Option exercise, 914 sh2025-02-18: Option exercise, 1,764 sh2025-02-18: Option exercise, 805 sh2025-02-18: Option exercise, 975 sh2025-02-18: Option exercise, 1,119 sh2025-02-10: Award / grant, 1,045 sh2025-02-10: Award / grant, 1,045 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-05-11MKSISale2,849 @ $319.93$911K−18.4% of holding12,596Form 4
2026-03-06MKSISale4,568 @ $220.52$1.0M−22.8% of holding15,445Form 4
2026-02-20MKSISale1,453 @ $247.55$360K−6.8% of holding20,013Form 4
58 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-02-17MKSIWithheld for tax2,71221,465Form 4
2026-02-17MKSIOption exercise1,1679,332Form 4
2026-02-17MKSIOption exercise97621,707Form 4
2026-02-17MKSIOption exercise34820,731Form 4
2026-02-17MKSIOption exercise91420,382Form 4
2026-02-17MKSIOption exercise1,76419,468Form 4
2026-02-17MKSIOption exercise34811,475Form 4
2026-02-17MKSIOption exercise91411,823Form 4
2026-02-17MKSIOption exercise1,76412,737Form 4
2026-02-17MKSIAward / grant1,75914,502Form 4
2026-02-17MKSIOption exercise97610,499Form 4
2026-02-17MKSIOption exercise1,16722,874Form 4
2026-02-17MKSIOption exercise34811,475Form 4
2026-02-17MKSIOption exercise1,76412,737Form 4
2026-02-17MKSIAward / grant1,75914,502Form 4
2026-02-17MKSIOption exercise1,30324,177Form 4
2026-02-17MKSIOption exercise1,16722,874Form 4
2026-02-17MKSIOption exercise97621,707Form 4
2026-02-17MKSIOption exercise34820,731Form 4
2026-02-17MKSIOption exercise91420,382Form 4
2026-02-17MKSIOption exercise1,76419,468Form 4
2026-02-17MKSIOption exercise1,3038,029Form 4
2026-02-17MKSIOption exercise1,1679,332Form 4
2026-02-17MKSIOption exercise1,30324,177Form 4
2026-02-17MKSIOption exercise91411,823Form 4
2026-02-17MKSIOption exercise1,3038,029Form 4
2026-02-17MKSIOption exercise97610,499Form 4
2026-02-08MKSIAward / grant3,50412,743Form 4
2026-02-08MKSIAward / grant3,50412,743Form 4
2025-02-18MKSIWithheld for tax1,76017,467Form 4
2025-02-18MKSIOption exercise9759,238Form 4
2025-02-18MKSIOption exercise34810,213Form 4
2025-02-18MKSIOption exercise91410,561Form 4
2025-02-18MKSIOption exercise1,76411,475Form 4
2025-02-18MKSIOption exercise80513,239Form 4
2025-02-18MKSIOption exercise1,11914,044Form 4
2025-02-18MKSIAward / grant3,91115,162Form 4
2025-02-18MKSIOption exercise97519,227Form 4
2025-02-18MKSIOption exercise34818,252Form 4
2025-02-18MKSIOption exercise91417,904Form 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.