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MASI

Masimo Corp · NASDAQ NMS - GLOBAL MARKET · Health Care

$178.73+$0.24 (+0.13%)

Prices delayed up to 5 minutes

AC Intelligence

AC Intelligence

AC Intelligence for MASI is being prepared.

Key Stats

Key Stats

Open

$178.25

Day High

$178.73

Day Low

$178.25

Prev Close

$178.49

Volume

0

Avg Volume

1.3M

Day Change

+$0.24

Change %

+0.13%

Fundamentals

Fundamentals

P/B

9.98

EPS (TTM)

$-2.77

Market Cap

$9.3B

52-Wk Range

$125.94 — $179.00

What is P/E? →Stock fundamentals explained →

Earnings History

Insider Activity

Who Owns This Stock

Who Owns MASI

Other40.7%292 holders
Passive / Index28.9%11 holders
Quality / Compounder26.6%29 holders
Dealer / Bank6.6%23 holders
Systematic / Quant1.9%9 holders
Tactical / Macro1.5%5 holders
Income / Defensive0.8%17 holders

Based on Q4 2025 13F filings + AC behavioral model

389 institutional holders

Top Holders

1.▼Fidelity Management
-5.4%$848854.9B
2.★Politan Capital Management LP
$596929.6B
3.★Vanguard Group
$519486.8B
4.▲BlackRock, Inc.
$380303.9B
5.▲BlackRock, Inc.
$322302.5B
6.▲MASSACHUSETTS FINANCIAL SERVICES CO /MA/
$273459.0B
7.★NAYA CAPITAL MANAGEMENT UK LTD
$202984.3B
8.▲WESTFIELD CAPITAL MANAGEMENT CO LP
+7.2%$197957.6B
9.★State Street
$184060.4B
10.▲BlackRock, Inc.
$174375.9B
11.★Alyeska Investment Group, L.P.
$163785.5B
12.▲BlackRock, Inc.
+905.0%$142731.2B
13.★AQR Capital Management
$141657.0B
14.▼Fidelity Management
-84.2%$141282.6B
15.▲Geode Capital Management
+468.6%$104309.5B
16.RTW INVESTMENTS, LP
0.0%$88869.2B
17.▼Capital Research Global Investors
-65.6%$82964.5B
18.▼Liontrust Investment Partners LLP
-11.4%$81651.1B
19.★Squarepoint Ops LLC
$75922.1B
20.▲Goldman Sachs AM
+878.3%$75165.3B

Institutional Pressure

Market Regime:Strong Risk-Off (-0.62)
SELLINGBUYING
▲
Mild Selling Pressure
Other(40.7%)
●
—
Passive / Index(28.9%)
●
Holds
Quality / Compounder(26.6%)
●
Holds through
Dealer / Bank(6.6%)
●
Facilitating
Systematic / Quant(1.9%)
●
De-risking (mechanical)
Tactical / Macro(1.5%)
●
Reducing rapidly
Income / Defensive(0.8%)
●
Inflows (flight to yield)
Deep Value(0.3%)
●
Possible buyer
Activist(0.1%)
●
May accumulate

56% passive + quality floor won't sell.

Updated daily · Based on Q4 2025 filings + AC behavioral model

Sentiment Signals

Sentiment Signals

→Insider ActivityNo insider transactions in last 90 daysSEC Form 4
→Analyst Consensus6 buy, 9 hold, 0 sellFinnhub
↑↑Inst. Flows383 increased/new, 167 decreased/exited (13F)AC 13F Analysis

Sources: SEC Form 4, Finnhub, AC 13F Analysis

On AcidCapitalist

On AcidCapitalist

No recent mentions of MASI on AcidCapitalist.

Data provided by Finnhub. Prices delayed up to 5 minutes.