Ramakumar Mayampurath
Insider
First SEC filing: May 4, 2021 · Latest: May 4, 2021
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net: $-2,779,379
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 22, 2026 | MKSI | S 10b5-1 | 8,810 | $315.48 | $2,779,379 | 1 Direct | -99.99% | Disposed | -11.5% (price as of 2026-10-02) |
| Feb. 17, 2026 | MKSI | M | 2,702 | · | · | 23,898 Direct | -10.16% | Disposed | (price as of 2026-10-02) |
| Feb. 17, 2026 | MKSI | M | 2,958 | · | · | 26,600 Direct | -10.01% | Disposed | (price as of 2026-10-02) |
| Feb. 17, 2026 | MKSI | A | 4,279 | · | · | 29,559 Direct | +16.93% | Acquired | (price as of 2026-10-02) |
| Feb. 17, 2026 | MKSI | F | 2,516 | $260.74 | $656,022 | 8,811 Direct | -22.21% | Disposed | 7.1% (price as of 2026-10-02) |
| Feb. 17, 2026 | MKSI | M | 2,702 | · | · | 11,327 Direct | +31.33% | Acquired | (price as of 2026-10-02) |
| Feb. 17, 2026 | MKSI | M | 2,958 | · | · | 8,625 Direct | +52.20% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2026 | MKSI | A | 8,878 | · | · | 25,280 Direct | +54.13% | Acquired | (price as of 2026-10-02) |
| Nov. 17, 2025 | MKSI | M | 8,295 | · | · | 16,402 Direct | -33.59% | Disposed | (price as of 2026-10-02) |
| Nov. 17, 2025 | MKSI | F | 2,628 | $142.74 | $375,121 | 5,667 Direct | -31.68% | Disposed | 95.6% (price as of 2026-10-02) |
| Nov. 17, 2025 | MKSI | M | 8,295 | · | · | 8,295 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 18, 2025 | MKSI | A | 8,107 | · | · | 24,697 Direct | +48.87% | Acquired | (price as of 2026-10-02) |
| Nov. 15, 2024 | MKSI | A | 16,591 | · | · | 16,591 Direct | · | Acquired | (price as of 2026-10-02) |
| May 1, 2024 | ROG | F | 80 | $118.62 | $9,490 | 20,626 Direct | -0.39% | Disposed | 34.9% (price as of 2026-10-02) |
| Feb. 19, 2024 | ROG | A | 4,270 | · | · | 20,706 Direct | +25.98% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2024 | ROG | F | 291 | $116.14 | $33,797 | 16,436 Direct | -1.74% | Disposed | 37.8% (price as of 2026-10-02) |
| Feb. 10, 2024 | ROG | F | 42 | $119.26 | $5,009 | 16,727 Direct | -0.25% | Disposed | 34.2% (price as of 2026-10-02) |
| Feb. 9, 2024 | ROG | F | 383 | $119.26 | $45,677 | 16,769 Direct | -2.23% | Disposed | 34.2% (price as of 2026-10-02) |
| May 3, 2023 | ROG | S | 1,200 | $160.96 | $193,152 | 17,152 Direct | -6.54% | Disposed | -0.6% (price as of 2026-10-02) |
| May 1, 2023 | ROG | F | 83 | $159.62 | $13,248 | 18,352 Direct | -0.45% | Disposed | 0.2% (price as of 2026-10-02) |
| Feb. 14, 2023 | ROG | F | 316 | $150.11 | $47,435 | 18,435 Direct | -1.69% | Disposed | 6.6% (price as of 2026-10-02) |
| Feb. 12, 2023 | ROG | F | 47 | $150.99 | $7,097 | 18,751 Direct | -0.25% | Disposed | 6.0% (price as of 2026-10-02) |
| Feb. 10, 2023 | ROG | F | 51 | $150.99 | $7,700 | 18,798 Direct | -0.27% | Disposed | 6.0% (price as of 2026-10-02) |
| Feb. 9, 2023 | ROG | A | 109 | · | · | 15,162 Direct | +0.72% | Acquired | (price as of 2026-10-02) |
| Feb. 9, 2023 | ROG | F | 37 | $150.99 | $5,587 | 15,125 Direct | -0.24% | Disposed | 6.0% (price as of 2026-10-02) |
| Feb. 9, 2023 | ROG | A | 3,724 | · | · | 18,849 Direct | +24.62% | Acquired | (price as of 2026-10-02) |
| Dec. 8, 2022 | ROG | A | 9,530 | · | · | 15,053 Direct | +172.55% | Acquired | (price as of 2026-10-02) |
| May 1, 2022 | ROG | F | 88 | $270.72 | $23,823 | 5,523 Direct | -1.57% | Disposed | -40.9% (price as of 2026-10-02) |
| Feb. 14, 2022 | ROG | A | 3,250 | · | · | 5,611 Direct | +137.65% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2022 | ROG | F | 42 | $272.41 | $11,441 | 2,361 Direct | -1.75% | Disposed | -41.3% (price as of 2026-10-02) |
| Feb. 10, 2022 | ROG | F | 46 | $272.80 | $12,549 | 2,403 Direct | -1.88% | Disposed | -41.3% (price as of 2026-10-02) |
| Feb. 9, 2022 | ROG | A | 1,005 | · | · | 2,755 Direct | +57.43% | Acquired | (price as of 2026-10-02) |
| Feb. 9, 2022 | ROG | F | 306 | $272.87 | $83,498 | 2,449 Direct | -11.11% | Disposed | -41.4% (price as of 2026-10-02) |
| Feb. 7, 2022 | ROG | F | 65 | $272.32 | $17,701 | 1,750 Direct | -3.58% | Disposed | -41.2% (price as of 2026-10-02) |
| May 1, 2021 | ROG | A | 890 | · | · | 1,815 Direct | +96.22% | Acquired | (price as of 2026-10-02) |
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 | · | · | 2,702 | Disposed |
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock | · | · | 2,958 | Disposed |
| Feb. 17, 2026 | MKSI | Restricted Stock Unit | Common Stock | · | · | 4,279 | Acquired |
| Feb. 8, 2026 | MKSI | Restricted Stock Unit | Common Stock | · | · | 8,878 | Acquired |
| Nov. 17, 2025 | MKSI | Restricted Stock Unit | Common Stock | · | · | 8,295 | Disposed |
| Feb. 18, 2025 | MKSI | Restricted Stock Unit | Common Stock | · | · | 8,107 | Acquired |
| Nov. 15, 2024 | MKSI | Restricted Stock Unit | Common Stock | · | · | 16,591 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 4, 2021 | ROG | Capital (Common) Stock | 925 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $134,906 | $1,000,000 | · | · | · | · | $60,601 | $2,917,469 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.