Brian Charles Quirk

CIK 1600515 · View on SEC EDGAR ↗

Insider

First SEC filing: March 6, 2014 · Latest: March 6, 2014

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 76 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

76 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
May 7, 2018 MKSI S 10b5-1 2,000 $109.40 $218,800 17,641 Direct -10.18% Disposed 152.3% (price as of 2026-08-20)
Feb. 5, 2018 MKSI S 10b5-1 2,000 $105.10 $210,200 11,863 Direct -14.43% Disposed 162.6% (price as of 2026-08-20)
Nov. 6, 2017 MKSI S 10b5-1 2,000 $107.90 $215,800 13,785 Direct -12.67% Disposed 155.8% (price as of 2026-08-20)
Aug. 8, 2017 MKSI S 10b5-1 2,000 $79.30 $158,600 15,785 Direct -11.25% Disposed 248.0% (price as of 2026-08-20)
May 10, 2017 MKSI S 10b5-1 2,000 $80.00 $160,000 15,563 Direct -11.39% Disposed 245.0% (price as of 2026-08-20)
April 3, 2017 MKSI S 10b5-1 1,000 $68.75 $68,750 17,563 Direct -5.39% Disposed 301.4% (price as of 2026-08-20)
Feb. 1, 2017 MKSI S 10b5-1 1,000 $66.60 $66,600 9,210 Direct -9.79% Disposed 314.4% (price as of 2026-08-20)
Dec. 1, 2016 MKSI S 10b5-1 1,000 $57.40 $57,400 10,210 Direct -8.92% Disposed 380.8% (price as of 2026-08-20)
Oct. 3, 2016 MKSI S 10b5-1 1,000 $49.36 $49,360 11,210 Direct -8.19% Disposed 459.1% (price as of 2026-08-20)
Aug. 3, 2016 MKSI S 10b5-1 1,000 $45.17 $45,170 12,210 Direct -7.57% Disposed 511.0% (price as of 2026-08-20)
May 16, 2016 MKSI S 10b5-1 1,000 $36.25 $36,250 13,210 Direct -7.04% Disposed 661.4% (price as of 2026-08-20)
March 18, 2016 MKSI S 10b5-1 1,000 $36.00 $36,000 14,210 Direct -6.57% Disposed 666.6% (price as of 2026-08-20)
Jan. 28, 2016 MKSI S 10b5-1 1,000 $36.00 $36,000 6,102 Direct -14.08% Disposed 666.6% (price as of 2026-08-20)
Dec. 16, 2015 MKSI S 10b5-1 1,000 $36.03 $36,030 7,102 Direct -12.34% Disposed 666.0% (price as of 2026-08-20)
Jan. 30, 2015 MKSI S 10b5-1 1,041 $36.09 $37,570 1 Direct -99.90% Disposed 664.7% (price as of 2026-08-20)
Jan. 23, 2015 MKSI S 10b5-1 1,040 $34.76 $36,150 1,042 Direct -49.95% Disposed 694.0% (price as of 2026-08-20)
Jan. 16, 2015 MKSI S 10b5-1 1,040 $33.10 $34,424 2,082 Direct -33.31% Disposed 733.8% (price as of 2026-08-20)
Dec. 12, 2014 MKSI S 10b5-1 1,041 $35.97 $37,445 3,122 Direct -25.01% Disposed 667.3% (price as of 2026-08-20)
Dec. 5, 2014 MKSI S 10b5-1 1,040 $36.17 $37,617 4,163 Direct -19.99% Disposed 663.0% (price as of 2026-08-20)
Nov. 21, 2014 MKSI S 10b5-1 1,040 $36.30 $37,752 5,203 Direct -16.66% Disposed 660.3% (price as of 2026-08-20)

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. 15, 2018 MKSI Restricted Stock Unit Common Stock (1,230) — — 1,230 Disposed
Feb. 15, 2018 MKSI Restricted Stock Unit Common Stock (1,489) — — 1,489 Disposed
Feb. 15, 2018 MKSI Restricted Stock Unit Common Stock (2,157) — — 2,157 Disposed
Feb. 15, 2018 MKSI Restricted Stock Unit Common Stock (2,805) — — 2,805 Disposed
Feb. 15, 2018 MKSI Restricted Stock Unit Common Stock (1,773) — — 1,773 Disposed
Feb. 15, 2018 MKSI Restricted Stock Unit Common Stock (2,182) — — 2,182 Disposed
Feb. 15, 2018 MKSI Restricted Stock Unit Common Stock (2,250) — — 2,250 Acquired
Feb. 15, 2018 MKSI Restricted Stock Unit Common Stock (3,375) — — 3,375 Acquired
Feb. 12, 2018 MKSI Restricted Stock Unit Common Stock (1,071) — — 1,071 Disposed
May 11, 2017 MKSI Restricted Stock Unit Common Stock (3,558) — — 3,558 Disposed
Feb. 15, 2017 MKSI Restricted Stock Unit Common Stock (2,157) — — 2,157 Disposed
Feb. 15, 2017 MKSI Restricted Stock Unit Common Stock (2,804) — — 2,804 Disposed
Feb. 15, 2017 MKSI Restricted Stock Unit Common Stock (1,773) — — 1,773 Disposed
Feb. 15, 2017 MKSI Restricted Stock Unit Common Stock (2,181) — — 2,181 Disposed
Feb. 15, 2017 MKSI Restricted Stock Unit Common Stock (3,693) — — 3,693 Acquired
Feb. 15, 2017 MKSI Restricted Stock Unit Common Stock (5,539) — — 5,539 Acquired
Feb. 13, 2017 MKSI Restricted Stock Unit Common Stock (1,294) — — 1,294 Disposed
Feb. 10, 2017 MKSI Restricted Stock Unit Common Stock (2,009) — — 2,009 Disposed
Feb. 10, 2017 MKSI Restricted Stock Unit Common Stock (3,013) — — 3,013 Disposed
July 5, 2016 MKSI Restricted Stock Unit Common Stock (3,558) — — 3,558 Acquired
Feb. 25, 2016 MKSI Restricted Stock Unit Common Stock (1,982) — — 1,982 Disposed
Feb. 25, 2016 MKSI Restricted Stock Unit Common Stock (2,695) — — 2,695 Disposed
Feb. 16, 2016 MKSI Restricted Stock Unit Common Stock (6,472) — — 6,472 Acquired
Feb. 16, 2016 MKSI Restricted Stock Unit Common Stock (9,708) — — 9,708 Acquired
Feb. 16, 2016 MKSI Restricted Stock Unit Common Stock (1,773) — — 1,773 Disposed
Feb. 16, 2016 MKSI Restricted Stock Unit Common Stock (2,180) — — 2,180 Disposed
Feb. 10, 2016 MKSI Restricted Stock Unit Common Stock (2,009) — — 2,009 Disposed
Feb. 10, 2016 MKSI Restricted Stock Unit Common Stock (3,013) — — 3,013 Disposed
Jan. 26, 2016 MKSI Restricted Stock Unit Common Stock (1,436) — — 1,436 Disposed
April 2, 2015 MKSI Restricted Stock Unit Common Stock (2,469) — — 2,469 Disposed
Feb. 25, 2015 MKSI Restricted Stock Unit Common Stock (1,981) — — 1,981 Disposed
Feb. 25, 2015 MKSI Restricted Stock Unit Common Stock (2,695) — — 2,695 Disposed
Feb. 17, 2015 MKSI Restricted Stock Unit Common Stock (5,319) — — 5,319 Acquired
Feb. 17, 2015 MKSI Restricted Stock Unit Common Stock (7,979) — — 7,979 Acquired
Feb. 10, 2015 MKSI Restricted Stock Unit Common Stock (2,008) — — 2,008 Disposed
Feb. 10, 2015 MKSI Restricted Stock Unit Common Stock (3,013) — — 3,013 Disposed
April 11, 2014 MKSI Restricted Stock Unit Common Stock (2,113) — — 2,113 Disposed
April 2, 2014 MKSI Restricted Stock Unit Common Stock (2,469) — — 2,469 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 3 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
March 6, 2014 MKSI Common Stock 3,152 Direct
March 6, 2014 MKSI Restricted Stock Unit→ Common Stock (17,040) 17,040 Direct
March 6, 2014 MKSI Restricted Stock Unit→ Common Stock (14,429) 14,429 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

MKSI

Sr. Vice President of Global Operations
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2016 $362,004 — — — $309,296 — $63,702 $1,315,002
2015 $339,423 — — — $212,818 — $61,769 $989,010
2014 $323,923 — — — $222,697 — $60,796 $957,416

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.