Form 4 Tracker
MASIMO CORP
MASI

32 insider filings · Latest: Jun 10, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jan 28, 2026Jan 31 1:13 AMAnand SampathEVP, Ops & Clinical Research
Sale
18,680$136.81$2.6M40,909(D)

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Jan 28, 2026Jan 28 9:00 PMSampath Anand
Proposed Sale
18,680$136.81$2.6M

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Dec 11, 2025Dec 11 9:07 PMTripodi Blair
Proposed Sale
17,118$142.00$2.4M

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Nov 28, 2025Nov 28 6:43 PMAhmed Omar
Proposed Sale
3,229$142.79$461.1K

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Sep 29, 2025Sep 29 8:46 PMMuhsin Bilal
Proposed Sale
25,061$141.80$3.6M

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Sep 26, 2025Sep 26 8:05 PMMuhsin Bilal
Proposed Sale
50,000$141.88$7.1M

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Sep 23, 2025Sep 23 8:57 PMMuhsin Bilal
Proposed Sale
25,000$140.76$3.5M

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May 13, 2025May 13 8:44 PMREYNOLDS CRAIG B
Proposed Sale
16,443$164.00$2.7M

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May 12, 2025May 12 8:39 PMMuhsin Bilal
Proposed Sale
10,000$163.24$1.6M

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May 12, 2025May 12 8:38 PMChapek Robert A
Proposed Sale
3,455$163.42$564.6K

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Apr 24, 2025Apr 24 8:20 PMMcClenahan Thomas Samuel
Proposed Sale
26,300$162.95$4.3M

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Mar 14, 2025Mar 14 8:10 PMREYNOLDS CRAIG B
Proposed Sale
2,053$166.13$341.1K

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Mar 10, 2025Mar 10 9:12 PMMuhsin Bilal
Proposed Sale
30,000$167.48$5.0M

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Mar 3, 2025Mar 3 9:44 PMMcClenahan Thomas Samuel
Proposed Sale
49,000$191.13$9.4M

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Feb 28, 2025Mar 3 6:26 PMLevy Tao
Proposed Sale
36,537$187.67$6.9M

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Jan 7, 2025Jan 7 10:36 PMKIANI JOE E
Proposed Sale
302,165$165.65$50.1M

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Dec 16, 2024Dec 16 9:09 PMLevy Tao
Proposed Sale
15,072$176.73$2.7M

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Apr 21, 2026May 5 8:59 PMElisabeth A HellmannChief Human Resources Officer
Option Exercise
3351,005(D)

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Mar 11, 2026Mar 16 9:21 PMCatherine M. SzymanDirector, CEO
Option Exercise
2,1016,306(D)

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Mar 11, 2026Mar 16 9:19 PMMicah W YoungEVP & Chief Financial Officer
Option Exercise
8732,622(D)

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Mar 12, 2026Mar 13 11:25 PMPolitan Capital Management LPOther
Other (J)
130,869130,869(I)

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Mar 11, 2026Mar 13 11:25 PMPolitan Capital Management LPOther
Other (J)
142,681142,681(I)

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Mar 6, 2026Mar 10 11:46 PMGreg Allen MeehanChief Commerical Officer
Grant/Award
8,5508,550(D)

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Mar 6, 2026Mar 10 11:43 PMTim BennerChief Marketing Officer
Grant/Award
6,1286,128(D)

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Mar 6, 2026Mar 10 11:05 PMElisabeth A HellmannChief Human Resources Officer
Grant/Award
5,9855,985(D)

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Mar 6, 2026Mar 10 11:02 PMAnand SampathEVP, Operations
Grant/Award
6,8406,840(D)

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Mar 6, 2026Mar 10 10:52 PMCharles DadswellEVP, General Counsel
Grant/Award
10,26110,261(D)

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Mar 6, 2026Mar 10 10:51 PMMicah W YoungEVP & Chief Financial Officer
Grant/Award
17,67117,671(D)

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Mar 6, 2026Mar 10 10:50 PMCatherine M. SzymanDirector, CEO
Grant/Award
39,90439,904(D)

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Feb 27, 2026Mar 4 1:29 AMMicah W YoungEVP & Chief Financial Officer
Option Exercise
15,0000(D)

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Feb 12, 2026Feb 13 10:28 PMCatherine M. SzymanDirector, CEO
Option Exercise
11,14122,283(D)

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Jan 28, 2026Jan 31 1:13 AMAnand SampathEVP, Ops & Clinical Research
Option Exercise
30,000$37.840(D)

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