Insider at

04

Insider transactions

05
0 buys (P) 2 sells (S) Net: $-722,628 + 72 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

72 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 4, 2026 DXCM S 10b5-1 4,911 $74.13 $364,052 95,450 Direct -4.89% Disposed 15.1% (price as of 2026-10-02)
June 3, 2026 DXCM S 10b5-1 4,912 $73.00 $358,576 100,361 Direct -4.67% Disposed 16.9% (price as of 2026-10-02)
Dec. 28, 2020 MASI S 10b5-1 8,250 $264.02 $2,178,165 12,465 Direct -39.83% Disposed
July 6, 2020 MASI S 10b5-1 1,250 $235.00 $293,750 12,465 Direct -9.11% Disposed
April 15, 2020 MASI S 10b5-1 2,000 $200.00 $400,000 12,465 Direct -13.83% Disposed
April 15, 2020 MASI S 10b5-1 2,000 $195.00 $390,000 12,465 Direct -13.83% Disposed
April 14, 2020 MASI S 10b5-1 2,000 $190.00 $380,000 12,465 Direct -13.83% Disposed
April 1, 2019 MASI S 10b5-1 2,000 $140.00 $280,000 11,201 Direct -15.15% Disposed
Feb. 27, 2019 MASI S 10b5-1 2,000 $135.00 $270,000 11,201 Direct -15.15% Disposed
Feb. 25, 2019 MASI S 10b5-1 2,000 $130.00 $260,000 11,201 Direct -15.15% Disposed
Jan. 31, 2019 MASI S 10b5-1 2,000 $125.00 $250,000 11,201 Direct -15.15% Disposed
Jan. 18, 2019 MASI S 10b5-1 2,000 $120.00 $240,000 11,201 Direct -15.15% Disposed
Jan. 15, 2019 MASI S 10b5-1 2,000 $115.00 $230,000 11,201 Direct -15.15% Disposed
May 3, 2018 MASI S 10b5-1 25,000 $92.50 $2,312,500 9,201 Direct -73.10% Disposed
May 3, 2018 MASI S 10b5-1 25,000 $95.00 $2,375,000 9,201 Direct -73.10% Disposed
April 23, 2018 MASI S 10b5-1 12,000 $90.00 $1,080,000 9,201 Direct -56.60% Disposed
April 23, 2018 MASI S 10b5-1 12,000 $90.00 $1,080,000 9,201 Direct -56.60% Disposed
March 29, 2018 MASI S 10b5-1 12,000 $87.50 $1,050,000 9,201 Direct -56.60% Disposed
March 29, 2018 MASI S 10b5-1 6,000 $87.50 $525,000 9,201 Direct -39.47% Disposed
March 29, 2018 MASI S 10b5-1 11,303 $87.50 $989,012 9,201 Direct -55.13% Disposed
July 20, 2017 MASI S 10b5-1 25,000 $97.50 $2,437,500 7,201 Direct -77.64% Disposed
April 25, 2017 MASI S 10b5-1 15,000 $100.00 $1,500,000 7,201 Direct -67.56% Disposed
April 25, 2017 MASI S 10b5-1 15,000 $100.00 $1,500,000 7,201 Direct -67.56% Disposed
April 25, 2017 MASI S 10b5-1 12,500 $100.00 $1,250,000 7,201 Direct -63.45% Disposed
April 25, 2017 MASI S 10b5-1 7,500 $100.00 $750,000 7,201 Direct -51.02% Disposed
Feb. 3, 2017 MASI S 10b5-1 6,000 $75.00 $450,000 7,182 Direct -45.52% Disposed
Jan. 27, 2017 MASI S 10b5-1 4,275 $72.50 $309,938 7,182 Direct -37.31% Disposed
Jan. 25, 2017 MASI S 10b5-1 1,525 $72.50 $110,562 7,182 Direct -17.51% Disposed

Showing latest 100 of 168 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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 26, 2021 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,637) $250.73 Feb. 26, 2031 2,637 Acquired
Jan. 2, 2021 MASI Restricted Stock Units Common Stock (2,000) · · 2,000 Disposed
Dec. 28, 2020 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (8,250) $31.01 March 20, 2025 8,250 Disposed
July 6, 2020 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (1,250) $31.01 March 20, 2025 1,250 Disposed
April 15, 2020 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $28.03 Feb. 18, 2024 2,000 Disposed
April 15, 2020 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $28.03 Feb. 18, 2024 2,000 Disposed
April 14, 2020 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $28.03 Feb. 18, 2024 2,000 Disposed
March 12, 2020 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (4,422) $179.42 March 12, 2030 4,422 Acquired
Jan. 2, 2020 MASI Restricted Stock Units Common Stock (2,000) · · 2,000 Disposed
April 1, 2019 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $31.01 March 20, 2025 2,000 Disposed
March 15, 2019 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (7,235) $133.50 March 15, 2029 7,235 Acquired
Feb. 27, 2019 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $31.01 March 20, 2025 2,000 Disposed
Feb. 25, 2019 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $31.01 March 20, 2025 2,000 Disposed
Jan. 31, 2019 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $21.97 May 28, 2023 2,000 Disposed
Jan. 18, 2019 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $21.97 May 28, 2023 2,000 Disposed
Jan. 15, 2019 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,000) $21.97 May 28, 2023 2,000 Disposed
Jan. 2, 2019 MASI Restricted Stock Units Common Stock (2,000) · · 2,000 Disposed
May 3, 2018 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (25,000) $30.06 Feb. 22, 2021 25,000 Disposed
May 3, 2018 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (25,000) $40.20 Aug. 11, 2018 25,000 Disposed
April 23, 2018 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (12,000) $37.84 Feb. 28, 2026 12,000 Disposed
April 23, 2018 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (12,000) $31.01 March 20, 2025 12,000 Disposed
March 29, 2018 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (12,000) $28.03 Feb. 18, 2024 12,000 Disposed
March 29, 2018 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (6,000) $21.97 May 28, 2023 6,000 Disposed
March 29, 2018 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (11,303) $24.68 Aug. 17, 2019 11,303 Disposed
March 16, 2018 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (10,436) $86.95 March 16, 2028 10,436 Acquired
Feb. 27, 2018 MASI Restricted Stock Units Common Stock (2,000) · · 2,000 Disposed
Feb. 27, 2018 MASI Restricted Stock Units Common Stock (10,000) · · 10,000 Acquired
July 20, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (25,000) $40.20 Aug. 11, 2018 25,000 Disposed
June 5, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (10,000) $90.87 June 5, 2027 10,000 Acquired
April 25, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (15,000) $40.20 Aug. 11, 2018 15,000 Disposed
April 25, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (15,000) $40.20 Aug. 11, 2018 15,000 Disposed
April 25, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (12,500) $40.20 Aug. 11, 2018 12,500 Disposed
April 25, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (7,500) $40.20 Aug. 11, 2018 7,500 Disposed
Feb. 3, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (6,000) $24.68 Aug. 17, 2019 6,000 Disposed
Jan. 27, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (4,275) $24.68 Aug. 17, 2019 4,275 Disposed
Jan. 25, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (1,525) $24.68 Aug. 17, 2019 1,525 Disposed
Jan. 20, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (100) $24.68 Aug. 17, 2019 100 Disposed
Jan. 19, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (100) $24.68 Aug. 17, 2019 100 Disposed
Jan. 10, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (6,000) $24.68 Aug. 17, 2019 6,000 Disposed
Jan. 3, 2017 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (6,697) $24.68 Aug. 17, 2019 6,697 Disposed
Dec. 21, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (4,000) $24.68 Aug. 17, 2019 4,000 Disposed
Nov. 7, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (6,000) $20.19 Oct. 27, 2021 6,000 Disposed
Sept. 7, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (5,700) $28.03 Feb. 18, 2024 5,700 Disposed
Sept. 6, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (300) $28.03 Feb. 18, 2024 300 Disposed
Aug. 4, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (6,000) $28.03 Feb. 18, 2024 6,000 Disposed
Aug. 4, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (6,000) $21.97 May 28, 2023 6,000 Disposed
Aug. 4, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (10,000) $24.68 Aug. 17, 2019 10,000 Disposed
June 1, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (4,000) $21.97 May 28, 2023 4,000 Disposed
May 5, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (4,000) $21.97 May 28, 2023 4,000 Disposed
May 5, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (4,000) $21.97 May 28, 2023 4,000 Disposed
April 27, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (4,000) $20.19 Oct. 27, 2021 4,000 Disposed
Feb. 29, 2016 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (30,000) $37.84 March 1, 2026 30,000 Acquired
Dec. 24, 2015 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (10,000) $20.19 Oct. 27, 2021 10,000 Disposed
Nov. 6, 2015 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,500) $20.19 Oct. 27, 2021 2,500 Disposed
Nov. 6, 2015 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,500) $20.19 Oct. 27, 2021 2,500 Disposed
Nov. 6, 2015 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,500) $20.19 Oct. 27, 2021 2,500 Disposed
Nov. 6, 2015 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (2,500) $20.19 Oct. 27, 2021 2,500 Disposed
March 20, 2015 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (30,000) $31.01 March 20, 2025 30,000 Acquired
Feb. 18, 2014 MASI Non-Qualified Stock Option (Right to Buy) Common Stock (30,000) $28.03 Feb. 18, 2024 30,000 Acquired
May 28, 2013 MASI Non-qualified stock optin (right to buy) Common Stock (30,000) $21.97 May 28, 2023 30,000 Acquired
Oct. 27, 2011 MASI Non-qualified Stock Option (Right to buy) Common Stock (30,000) $20.19 Oct. 27, 2021 30,000 Acquired
Feb. 22, 2011 MASI Non-qualified Stock Option (Right to buy) Common Stock (30,000) $30.06 Feb. 22, 2021 25,000 Acquired
Aug. 17, 2009 MASI Non-qualified Stock Option (right to buy) Common Stock (50,000) $24.68 Aug. 17, 2019 50,000 Acquired
Aug. 11, 2008 MASI Non-qualified Stock Option (right to buy) Common Stock (100,000) $40.20 Aug. 11, 2018 100,000 Acquired

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

Compensation (DEF 14A)

08

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

CIK 937556

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2017 $376,642 · · · $200,000 · $7,950 $1,777,812
2015 $354,103 · · · $194,400 · $7,950 $870,076
2013 $332,410 · · · $141,274 · $5,753 $711,448

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