Skip to main content
Livermore
Livermore
ZHEN

Masimo Corp

MASIDelisted Jun 10, 2026
Industry
Electromedical & Electrotherapeutic Apparatus
SEC CIK
0000937556

Masimo Corp was delisted on Jun 10, 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.

Members of Congress who traded MASI

Since 2020, newest trade first. Options and trades reported under an earlier ticker are included.

Trades
6
Filings
5
Members
2
Buys / sells
3 / 3
Estimated volume
$331.0K
Sum of range midpoints
Members of Congress who traded MASI
MemberTradesBuys / sellsEst. volumeLast tradedLast filed
Kevin HernRepublican · House · OK42 / 2$315.0KSep 26, 2025Oct 16, 2025
Tommy TubervilleRepublican · Senate · AL21 / 1$16.0KOct 5, 2022Nov 10, 2022

Trades

Every reported trade in Masimo Corp, newest filings first.

Congress trades
MemberAssetTypeOwnerTradedFiledDelayAmountSource
Kevin HernRepublican · House · OKMASIMasimo CorporationBuyJointJun 25, 2021Jul 14, 202119 days$100K-$250KFiling
Kevin HernRepublican · House · OKMASIMasimo CorporationBuyJointJun 25, 2021Jul 14, 202119 days$15K-$50KFiling
Tommy TubervilleRepublican · Senate · ALMASIMasimo Corporation - Common StockBuyJointMar 30, 2022Apr 8, 20229 days$1K-$15KFiling
Tommy TubervilleRepublican · Senate · ALMASIMasimo Corporation - Common StockSell (full)JointOct 5, 2022Nov 10, 202236 days$1K-$15KFiling
Kevin HernRepublican · House · OKMASIMasimo CorporationSellJointDec 19, 2022Jan 13, 202325 days$50K-$100KFiling
Kevin HernRepublican · House · OKMASIMasimo Corporation - Common StockSellJointSep 26, 2025Oct 16, 202520 days$15K-$50KFiling

Source: U.S. House Clerk and Senate Office of Public Records (eFD). Amounts are the ranges filers report.