Burke Kathleen Flaherty — SEC Form 4 filings
SEC reporting owner CIK 1775435. 10 Form 4 filings on record with FilingPulse; latest filed 2026-05-12.
Transaction summary — filings shown
Covers all 10 filings on record, filed 2024-02-06 to 2026-05-12. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 3 legs across 3 filings — 16,020 shares, $3,367,555 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 56.
- Largest priced transaction: sale of 4,355 shares @ $319.94 ($1,393,317) in MKS INC, filed 2026-05-12.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| MKS INC (MKSI) | EVP, GC & Secretary | 10 | — | 3 legs · 16,020 sh · $3,367,555 | 56 |
Form 4 filings — Burke Kathleen Flaherty
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-05-12 | 4 | MKS INC (MKSI) | Sale (S): 4,355 @ $319.94 | EDGAR |
| 2026-02-23 | 4 | MKS INC (MKSI) | Sale (S): 4,254 @ $250 | EDGAR |
| 2026-02-18 | 4 | MKS INC (MKSI) | Option exercise (M): 3,450.86 · Option exercise (M): 1,787.73 · Option exercise (M): 562.54 · Option exercise (M): 1,576 · Option exercise (M): 2,336 · Option exercise (M): 2,493 · +8 more | EDGAR |
| 2026-02-09 | 4 | MKS INC (MKSI) | Grant/award (A): 7,008.63 (derivative) | EDGAR |
| 2025-11-04 | 4 | MKS INC (MKSI) | Option exercise (M): 158 · Option exercise (M): 52 · Option exercise (M): 82 · Option exercise (M): 144 · Option exercise (M): 341 · Tax withholding (F): 777 @ $143.71 · +5 more | EDGAR |
| 2025-02-19 | 4 | MKS INSTRUMENTS INC (MKSI) | Option exercise (M): 2,286.76 · Option exercise (M): 1,645.08 · Option exercise (M): 3,608 · Option exercise (M): 1,870 · Option exercise (M): 588.03 · Option exercise (M): 1,648 · +8 more | EDGAR |
| 2025-02-11 | 4 | MKS INSTRUMENTS INC (MKSI) | Grant/award (A): 1,765.54 (derivative) | EDGAR |
| 2024-03-04 | 4 | MKS INSTRUMENTS INC (MKSI) | Sale (S): 7,411 @ $122.89 | EDGAR |
| 2024-02-16 | 4 | MKS INSTRUMENTS INC (MKSI) | Option exercise (M): 2,032.56 · Option exercise (M): 1,016.78 · Option exercise (M): 2,287 · Option exercise (M): 1,645 · Option exercise (M): 3,608 · Option exercise (M): 1,869 · +8 more | EDGAR |
| 2024-02-06 | 4 | MKS INSTRUMENTS INC (MKSI) | Grant/award (A): 10,824.86 (derivative) | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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