Masimo Corp
MASIDelisted- Industry
- Electromedical & Electrotherapeutic Apparatus
- SEC CIK
- 0000937556
Masimo Corp was delisted in 2026; its insiders filed their last Form 4 on Jun 12, 2026; 451 institutions reported holding it in 13F filings for Q1 2026, worth $9.69B in total; Soros Fund Management was the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Masimo Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Masimo Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Politan Capital Management LP | Other: Director by deputization | 0Indirect | Jun 12, 2026 | 3 |
| Koffey Quentin | Other: Director by deputization | 0Indirect | Jun 12, 2026 | 3 |
| Politan Capital Partners GP LLC | Other: Director by deputization | 0Indirect | Jun 12, 2026 | 3 |
| Politan Capital Management GP LLC | Other: Director by deputization | 0Indirect | Jun 12, 2026 | 3 |
| Lane Wendy E | Director | 0 | Jun 12, 2026 | 2 |
| Sampath Anand | EVP, Operations | 0 | Jun 12, 2026 | 3 |
| Szyman Catherine M. | Chief Executive Officer | 0 | Jun 12, 2026 | 4 |
| Scannell Timothy J | Director | 0 | Jun 12, 2026 | 2 |
| Solomon Darlene J. S. | Director | 0 | Jun 12, 2026 | 1 |
| Dadswell Charles | EVP, General Counsel | – | Jun 12, 2026 | 2 |
| Young Micah W | EVP, Chief Financial Officer | 0 | Jun 12, 2026 | 5 |
| Benner Tim | Chief Marketing Officer | – | Jun 12, 2026 | 2 |
| Brennan Michelle | Director, Other: Chairman of the Board | 0 | Jun 12, 2026 | 2 |
| Hellmann Elisabeth A | Chief Human Resources Officer | 0 | Jun 12, 2026 | 3 |
| Hataishi Paul | SVP, Chief Accounting Officer | 0 | Jun 12, 2026 | 1 |
| Meehan Greg Allen | Chief Commercial Officer | – | Jun 12, 2026 | 2 |
| Ahmed Omar | CTIO & EVP of Engineering | 3,268 | Nov 17, 2025 | 1 |
| Tripodi Blair | COO, Consumer Division | 13,818 | Sep 25, 2025 | 0 |
| Jellison William R | Director | 4,790 | Aug 12, 2025 | 0 |
| Muhsin Bilal | Chief Operating Officer | 24,172 | May 14, 2025 | 0 |
| Reynolds Craig B | Director | 18,371 | May 1, 2025 | 0 |
| Chapek Robert A | Director | 3,455 | May 1, 2025 | 0 |
| Levy Tao | EVP, Bus Dev | 26,810 | Nov 15, 2024 | 0 |
| Kiani Joe E | CEO and Chairman of the Board | 603,924 | Aug 12, 2024 | 0 |
| McClenahan Thomas Samuel | EVP, GEN COUNSEL & CORP SEC | 36,747 | Mar 1, 2024 | 0 |
| Classon Rolf A | Director | – | Dec 21, 2023 | 0 |
| Mikkelson Adam | Director | 4,108 | Jun 28, 2023 | 0 |
| Shimer Julie Ann | Director | 4,410 | May 31, 2023 | 0 |
| Cohen H Michael | Director | 3,823 | May 31, 2023 | 0 |
| Duffy Kevin P | President, Consumer | – | Apr 14, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jan 30, 2026 (view filing) | Jan 28 | 2 days | Sampath AnandEVP, Ops & Clinical Research | SSale | −18.7K | $136.81 | −$2.56M | −31.3%40.9K after | 3 lots |
| Aug 14, 2025 (view filing) | Aug 12-13 | 2 days | Brennan MichelleDirector, Other: Chairman of the Board | PPurchase | +200 | $152.80 | +$30.6K | +2.8%7.32K after | 2 lots |
| Aug 12, 2025 (view filing) | Aug 11 | 1 day | Jellison William RDirector | PPurchase | +3.00K | $145.98 | +$437.9K | +167.6%4.79K after | |
| May 14, 2025 (view filing) | May 12 | 2 days | Muhsin BilalChief Operating Officer | SSale | −10.0K | $163.28 | −$1.63M | −29.3%24.2K after | 3 lots |
| Mar 14, 2025 (view filing) | Mar 14 | Same day | Reynolds Craig BDirector | SSale | −2.05K | $166.13 | −$341.1K | −11.0%16.6K after | 10b5-1 |
| Mar 12, 2025 (view filing) | Mar 10 | 2 days | Muhsin BilalChief Operating Officer | SSale | −30.0K | $167.49 | −$5.02M | −55.4%24.2K after | 8 lots10b5-1 |
| Apr 30, 2024 (view filing) | Apr 26 | 4 days | Reynolds Craig BDirector | SSale | −40.0K | $136.17 | −$5.45M | −84.4%7.41K after | 10b5-1 |
| May 30, 2023 (view filing) | May 25 | 5 days | Kiani Joe ECEO and Chairman of the Board | PPurchase | +6.37K | $157.16 | +$1.00M | +1.8%366.1K after | 3 lots |
| Dec 19, 2022 (view filing) | Dec 15 | 4 days | Kiani Joe ECEO and Chairman of the Board | PPurchase | +7.04K | $144.80 | +$1.02M | +17.7%46.8K after | 4 lots |
| Nov 15, 2022 (view filing) | Nov 14 | 1 day | Kiani Joe ECEO and Chairman of the Board | PPurchase | +32.0K | $124.00 | +$3.97M | +411.0%39.8K after | 3 lots |
| Nov 15, 2022 (view filing) | Nov 11 | 4 days | Kiani Joe ECEO and Chairman of the Board | PPurchase | +7.78K | $129.27 | +$1.01M | New position7.78K after | 4 lots |
| Jan 26, 2022 (view filing) | Jan 24 | 2 days | Mikkelson AdamDirector | SSale | −600 | $214.80 | −$128.9K | −25.5%1.75K after | |
| Jan 20, 2022 (view filing) | Jan 18 | 2 days | Mikkelson AdamDirector | SSale | −600 | $228.70 | −$137.2K | −20.3%2.35K after | |
| Jan 12, 2022 (view filing) | Jan 10 | 2 days | Mikkelson AdamDirector | SSale | −600 | $250.01 | −$150.0K | −16.9%2.95K after | |
| Dec 8, 2021 (view filing) | Dec 6 | 2 days | Levy TaoEVP, Bus Dev | SSale | −3.00K | $275.47 | −$826.4K | −20.6%11.6K after | |
| Nov 19, 2021 (view filing) | Nov 17-19 | 2 days | Kiani Joe ECEO and Chairman of the Board | SSale | −61.4K | $300.42 | −$18.4M | −10.7%512.6K after | 3 lots |
| Nov 16, 2021 (view filing) | Nov 12 | 4 days | Young Micah WEVP & Chief Financial Officer | SSale | −3.70K | $298.00 | −$1.10M | −25.4%10.9K after | |
| Nov 16, 2021 (view filing) | Nov 12-16 | 4 days | Kiani Joe ECEO and Chairman of the Board | SSale | −38.6K | $300.98 | −$11.6M | −6.3%574.0K after | 3 lots |
| Nov 5, 2021 (view filing) | Nov 3-4 | 2 days | Kiani Joe ECEO and Chairman of the Board | SSale | −4.37K | $290.16 | −$1.27M | −0.7%612.6K after | 2 lots |
| Nov 2, 2021 (view filing) | Oct 29-Nov 2 | 4 days | Kiani Joe ECEO and Chairman of the Board | SSale | −45.8K | $291.15 | −$13.3M | −6.9%617.0K after | 4 lots |
| Oct 28, 2021 (view filing) | Oct 26-27 | 2 days | Kiani Joe ECEO and Chairman of the Board | SSale | −49.8K | $290.90 | −$14.5M | −61.9%30.6K after | 3 lots |