Skip to main content
Signal8
Schreiner James Alan profile photo

James Alan Schreiner

CIK: 0001797189

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)8 (27.6%)

Position reduction

Option Exercises (M)13 (44.8%)

Derivative conversions

Awards (A)5 (17.2%)

Compensation grants

Other (G, F, J, C, D, …)3 (10.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MKS INC logo
MKSI

MKS INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (29 total)

  • MKS INC logo
    MKSI

    MKS INC

    Jun 12, 2026
    Sale(S)
    Direct
    2.5K shares at avg. $345.52$854K
  • MKS INC logo
    MKSI

    MKS INC

    Jun 12, 2026
    Sale(S)
    Direct
    812 shares at avg. $346.41$281K
  • MKS INC logo
    MKSI

    MKS INC

    Jun 12, 2026
    Sale(S)
    Direct
    217 shares at avg. $347.00$75K
  • MKS INC logo
    MKSI

    MKS INC

    Jun 10, 2026
    Sale(S)
    Direct
    781 shares at avg. $317.42$248K
  • MKS INC logo
    MKSI

    MKS INC

    Feb 24, 2026
    Sale(S)
    Direct
    4.1K shares at avg. $255.00$1.0M
  • MKS INC logo
    MKSI

    MKS INC

    Feb 17, 2026
    Exercise(M)
    Direct
    1.2K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Feb 17, 2026
    Exercise(M)
    Direct
    432 shares-
  • MKS INC logo
    MKSI

    MKS INC

    Feb 17, 2026
    Exercise(M)
    Direct
    2.6K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Feb 17, 2026
    Exercise(M)
    Direct
    1.3K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Feb 17, 2026
    Award(A)

    Restricted Stock Unit

    Direct
    2.4K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Feb 17, 2026
    Tax Payment(F)
    Direct
    4.3K shares at avg. $260.74$1.1M
  • MKS INC logo
    MKSI

    MKS INC

    Feb 17, 2026
    Exercise(M)
    Direct
    1.9K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Feb 17, 2026
    Exercise(M)
    Direct
    1.7K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Feb 8, 2026
    Award(A)

    Restricted Stock Unit

    Direct
    5.2K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Oct 22, 2025
    Sale(S)
    Direct
    711 shares at avg. $138.68$99K
  • MKS INC logo
    MKSI

    MKS INC

    Sep 18, 2025
    Sale(S)
    Direct
    838 shares at avg. $124.00$104K
  • MKS INC logo
    MKSI

    MKS INC

    Aug 18, 2025
    Tax Payment(F)
    Direct
    1.2K shares at avg. $100.22$125K
  • MKS INC logo
    MKSI

    MKS INC

    Aug 18, 2025
    Exercise(M)
    Direct
    2.6K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Aug 4, 2025
    Award(A)

    Restricted Stock Unit

    Direct
    1.3K shares-
  • MKS INC logo
    MKSI

    MKS INC

    Jul 7, 2025
    Sale(S)
    Direct
    957 shares at avg. $102.44$98K
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Feb 18, 2025
    Exercise(M)
    Direct
    1.2K shares-
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Feb 18, 2025
    Exercise(M)
    Direct
    432 shares-
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Feb 18, 2025
    Exercise(M)
    Direct
    1.2K shares-
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Feb 18, 2025
    Exercise(M)
    Direct
    2.6K shares-
  • MKS INSTRUMENTS INC logo
    MKSI

    MKS INSTRUMENTS INC

    Feb 18, 2025
    Exercise(M)
    Direct
    1.3K shares-

1-25 of 29

About Schreiner James Alan

Schreiner James Alan (SEC CIK 0001797189) files insider reports with the SEC as EVP & COO of MKS INC (MKSI).

Signal8 holds 12 ownership filings by Schreiner James Alan, all Form 4s, filed between Feb 11, 2025 and Jun 16, 2026. Those filings report 29 transactions, from Feb 10, 2025 to Jun 12, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Schreiner James Alan's filings is in ANDOVER, MA.

Recent filings by Schreiner James Alan

  • Jun 12, 2026: Open-market sales of MKSI shares (3 lines, Form 4, code S).
  • Jun 10, 2026: Open-market sale of MKSI shares (Form 4, code S).
  • Feb 24, 2026: Open-market sale of MKSI shares (Form 4, code S).
  • Feb 17, 2026: Option exercises of MKSI shares (4 lines, Form 4, code M).
  • Feb 17, 2026: Grant or award of MKSI derivative securities (Form 4, code A).

Other insiders filing for MKS INC (MKSI)

How to read Form 4 transaction codes