DEFM14A ·Filed Apr 1, 2026

MASI

MASIMO CORP
BULLISH
Impact 8/10
Horizonmonths Processed6mo ago SEC0001104659-26-038289
Notable filing: DEFM14A
Actionable Insight ▲ Bullish

Traders should note the significant premium and high likelihood of deal completion given board support, voting agreements, and financing certainty. The stock is trading at $177.87, close to the offer price, indicating limited arbitrage opportunity. Monitor for regulatory approvals and any competing bids that could emerge during the pendency period.

DirectionBullish
Confidencehigh
Horizonmonths
Latest settled — T+20d
MASI ▲ +0.28% at T+20d
LONG call ✓ call won +0.28% · α vs SPY -9.44% · entry $177.95 → $178.46
Next anchor: T+60d due 3mo ago
Latest observation: T+50 -34.63% FF3 residual α
Entry anchored
Apr 1, 09:31 AM ET
via exchange tick
T+1d
+0.33%
call +0.33% · α +0.25%
$178.54
settled 6mo ago
T+5d
-0.04%
call -0.04% · α -3.80%
$177.88
settled 6mo ago
T+20d
+0.28%
call +0.28% · α -9.44%
$178.46
settled 5mo ago
T+60d
—
call — · α —
—
due 3mo ago

Price Chart

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Executive Summary

Masimo Corp (MASI) is being acquired by Danaher Corporation in an all-cash deal valued at approximately $9.4 billion, with Masimo shareholders receiving $180.00 per share—a 38% premium over the pre-announcement stock price. The merger has unanimous board approval and a fairness opinion from Centerview Partners, with shareholder approval expected on May 1, 2026, and closing anticipated in the second half of 2026.

Key Financial Metrics

Deal Value
$9.4B
Premium
38%
Deal Type
acquisition

Key Facts

  • All-cash acquisition by Danaher at $180.00 per share
  • 38% premium to Masimo's $130.15 closing price on February 13, 2026
  • Deal valued at approximately $9.4 billion based on 52.36 million shares outstanding
  • Unanimous board approval and recommendation to shareholders
  • Fairness opinion from Centerview Partners confirming financial fairness
  • Shareholder vote scheduled for May 1, 2026, with closing expected in second half of 2026
  • Termination fee of $305 million if Masimo walks away under certain conditions

Financial Impact

$180.00 per share in cash, representing a 38% premium and total transaction value of approximately $9.4 billion

share priceenterprise valuecash flowdilution

Risk Factors

  • Regulatory approvals, including HSR review and potential foreign antitrust clearances
  • Risk of competing acquisition proposals emerging before shareholder vote
  • Potential litigation challenging the merger process or terms
  • Deal could be terminated if Masimo board changes recommendation or accepts superior offer

Market Snapshot

Exchange
Nasdaq
Sector
Electromedical & Electrotherapeutic Apparatus

Investment Themes

Healthcare & Medical Devices

Documents Analyzed

This report is based on 2 SEC documents filed with EDGAR.

DocumentAccession Number
DEFM14A Filing (Primary)0001104659-26-038289
Document: tm268869-3_defm14a.htm0001104659-26-038289
9 reports for MASI
Performance horizon
75% Hit rate 3 of 4 directional calls best @ T+60▲ +1.94%Feb 27, 2026
Filters
Rows
Reports for MASI — sortable, filterable
TypeNow
Jun 22, 2026
14w ago
15-12G
NEUTRAL ★ 4/10
—awaiting T+5——
Jun 10, 2026
16w ago
8-K
BULLISH ★ 8/10
$179.95 $179.95· 0.00%▼ −2.14%—
May 4, 2026
21w ago
8-K
BULLISH ★ 8/10
$177.90 $178.08▲ +0.10%▼ −2.83%—
Apr 21, 2026
23w ago
Court Ruling
BEARISH ★ 6/10
$178.21 $178.10▲ +0.06%▲ +1.15%—
Apr 1, 2026
26w ago
DEFM14A
BULLISH ★ 8/10
$177.95 $177.88▼ −0.04%▼ −3.80%—
Mar 18, 2026
28w ago
PREM14A
NEUTRAL ★ 4/10
$178.51 $176.87▼ −0.92%▲ +1.29%—
Feb 27, 2026
30w ago
DFAN14A
BULLISH ★ 9/10
$175.27 $175.42▲ +0.09%▲ +1.29%—
Jan 23, 2026
36w ago
Court Ruling
NEUTRAL ★ 2/10
$140.64 $137.02▼ −2.57%▼ −2.96%—
Jan 23, 2026
36w ago
Court Ruling
NEUTRAL ★ 2/10
$140.64 $137.02▼ −2.57%▼ −2.96%—
Showing 9 of 9

US Market Status

Market Closed — Opens Mon (65h 7m)

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