James Alan Schreiner
CIK 1797189 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 2, 2020 · Latest: June 16, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
7 sells (S)
Net:
$-2,706,282
+ 92 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
92 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 12, 2026 | MKSI | S | 217 | $347.00 | $75,299 | 19,201 Direct | -1.12% | Disposed | -18.4% (price as of 2026-08-21) |
| June 12, 2026 | MKSI | S | 812 | $346.41 | $281,285 | 19,418 Direct | -4.01% | Disposed | -18.3% (price as of 2026-08-21) |
| June 12, 2026 | MKSI | S | 2,471 | $345.52 | $853,780 | 20,230 Direct | -10.88% | Disposed | -18.1% (price as of 2026-08-21) |
| June 10, 2026 | MKSI | S 10b5-1 | 781 | $317.42 | $247,905 | 22,701 Direct | -3.33% | Disposed | -10.8% (price as of 2026-08-21) |
| Feb. 24, 2026 | MKSI | S | 4,100 | $255.00 | $1,045,500 | 23,402 Direct | -14.91% | Disposed | 11.0% (price as of 2026-08-21) |
| Oct. 22, 2025 | MKSI | S 10b5-1 | 711 | $138.68 | $98,601 | 22,535 Direct | -3.06% | Disposed | 104.2% (price as of 2026-08-21) |
| Sept. 18, 2025 | MKSI | S 10b5-1 | 838 | $124.00 | $103,912 | 23,246 Direct | -3.48% | Disposed | 128.3% (price as of 2026-08-21) |
| July 7, 2025 | MKSI | S 10b5-1 | 957 | $102.44 | $98,035 | 22,692 Direct | -4.05% | Disposed | 176.4% (price as of 2026-08-21) |
Showing latest 100 of 105 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock (1,944) | — | — | 1,944 | Disposed |
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock (1,741) | — | — | 1,741 | Disposed |
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock (1,211) | — | — | 1,211 | Disposed |
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock (432) | — | — | 432 | Disposed |
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock (1,330) | — | — | 1,330 | Disposed |
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock (2,567) | — | — | 2,567 | Disposed |
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock (2,377) | — | — | 2,377 | Acquired |
| Feb. 8, 2026 | MKSI | Restricted Stock Unit | Common Stock (5,227) | — | — | 5,227 | Acquired |
| Aug. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock (2,641) | — | — | 2,641 | Disposed |
| Aug. 4, 2025 | MKSI | Restricted Stock Unit | Common Stock (1,330) | — | — | 1,330 | Acquired |
| Feb. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock (1,211) | — | — | 1,211 | Disposed |
| Feb. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock (432) | — | — | 432 | Disposed |
| Feb. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock (1,329) | — | — | 1,329 | Disposed |
| Feb. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock (2,566) | — | — | 2,566 | Disposed |
| Feb. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock (1,173) | — | — | 1,173 | Disposed |
| Feb. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock (1,630) | — | — | 1,630 | Disposed |
| Feb. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock (4,504) | — | — | 4,504 | Acquired |
| Feb. 10, 2025 | MKSI | Restricted Stock Unit | Common Stock (1,297) | — | — | 1,297 | Acquired |
| Aug. 19, 2024 | MKSI | Restricted Stock Unit | Common Stock (3,961) | — | — | 3,961 | Disposed |
| May 15, 2024 | MKSI | Restricted Stock Unit | Common Stock (6,602) | — | — | 6,602 | Acquired |
| Feb. 15, 2024 | MKSI | Restricted Stock Unit | Common Stock (1,329) | — | — | 1,329 | Disposed |
| Feb. 15, 2024 | MKSI | Restricted Stock Unit | Common Stock (2,565) | — | — | 2,565 | Disposed |
| Feb. 15, 2024 | MKSI | Restricted Stock Unit | Common Stock (1,173) | — | — | 1,173 | Disposed |
| Feb. 15, 2024 | MKSI | Restricted Stock Unit | Common Stock (1,629) | — | — | 1,629 | Disposed |
| Feb. 15, 2024 | MKSI | Restricted Stock Unit | Common Stock (654) | — | — | 654 | Disposed |
| Feb. 15, 2024 | MKSI | Restricted Stock Unit | Common Stock (1,307) | — | — | 1,307 | Disposed |
| Feb. 15, 2024 | MKSI | Restricted Stock Unit | Common Stock (3,633) | — | — | 3,633 | Acquired |
| Feb. 5, 2024 | MKSI | Restricted Stock Unit | Common Stock (7,698) | — | — | 7,698 | Acquired |
| Feb. 15, 2023 | MKSI | Restricted Stock Unit | Common Stock (1,171) | — | — | 1,171 | Disposed |
| Feb. 15, 2023 | MKSI | Restricted Stock Unit | Common Stock (1,629) | — | — | 1,629 | Disposed |
| Feb. 15, 2023 | MKSI | Restricted Stock Unit | Common Stock (653) | — | — | 653 | Disposed |
| Feb. 15, 2023 | MKSI | Restricted Stock Unit | Common Stock (1,307) | — | — | 1,307 | Disposed |
| Feb. 15, 2023 | MKSI | Restricted Stock Unit | Common Stock (696) | — | — | 696 | Disposed |
| Feb. 15, 2023 | MKSI | Restricted Stock Unit | Common Stock (1,001) | — | — | 1,001 | Disposed |
| Feb. 15, 2023 | MKSI | Restricted Stock Unit | Common Stock (3,988) | — | — | 3,988 | Acquired |
| Feb. 8, 2023 | MKSI | Restricted Stock Unit | Common Stock (4,888) | — | — | 4,888 | Acquired |
| Sept. 16, 2022 | MKSI | Restricted Stock Unit | Common Stock (1,434) | — | — | 1,434 | Disposed |
| Aug. 17, 2022 | MKSI | Restricted Stock Unit | Common Stock (227) | — | — | 227 | Acquired |
| April 29, 2022 | MKSI | Restricted Stock Unit | Common Stock (3,290) | — | — | 3,290 | Acquired |
| Feb. 15, 2022 | MKSI | Restricted Stock Unit | Common Stock (653) | — | — | 653 | Disposed |
| Feb. 15, 2022 | MKSI | Restricted Stock Unit | Common Stock (1,306) | — | — | 1,306 | Disposed |
| Feb. 15, 2022 | MKSI | Restricted Stock Unit | Common Stock (695) | — | — | 695 | Disposed |
| Feb. 15, 2022 | MKSI | Restricted Stock Unit | Common Stock (1,001) | — | — | 1,001 | Disposed |
| Jan. 21, 2022 | MKSI | Restricted Stock Unit | Common Stock (3,920) | — | — | 3,920 | Acquired |
| Sept. 16, 2021 | MKSI | Restricted Stock Unit | Common Stock (1,434) | — | — | 1,434 | Disposed |
| Feb. 16, 2021 | MKSI | Restricted Stock Unit | Common Stock (695) | — | — | 695 | Disposed |
| Feb. 16, 2021 | MKSI | Restricted Stock Unit | Common Stock (1,001) | — | — | 1,001 | Disposed |
| Feb. 16, 2021 | MKSI | Restricted Stock Unit | Common Stock (1,960) | — | — | 1,960 | Acquired |
| Jan. 25, 2021 | MKSI | Restricted Stock Unit | Common Stock (3,003) | — | — | 3,003 | Acquired |
| Sept. 16, 2020 | MKSI | Restricted Stock Unit | Common Stock (1,433) | — | — | 1,433 | Disposed |
| Feb. 18, 2020 | MKSI | Restricted Stock Unit | Common Stock (2,086) | — | — | 2,086 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
MKSI
EVP and COO, Materials Solutions Division| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $477,900 | — | — | — | $93,191 | — | $320,244 | $2,672,625 |
| 2023 | $465,718 | — | — | — | $260,337 | — | $494,827 | $2,007,561 |
| 2022 | $457,598 | — | — | — | $297,407 | — | $45,389 | $1,588,376 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.