425 ·Filed Apr 17, 2026

PEN

Penumbra Inc
NEUTRAL
Impact 4/10
Horizonweeks Processed5mo ago SEC0000950103-26-005882
Rule 425 M&A communications
Actionable Insight • Neutral

Traders should monitor voting outcomes and potential regulatory approvals, as failure to secure stockholder approval could derail the deal. The lack of disclosed financial terms in this communication suggests referencing the S-4 proxy statement for deal specifics.

DirectionNeutral
Confidencehigh
Horizonweeks
Final — all horizons settled through T+60d
PEN ▼ -3.94% at T+60d
NEUTRAL call ✗ call lost -3.94% · α vs SPY -10.71% · entry $329.71 → $316.73
Entry anchored
Apr 17, 03:59 PM ET
via exchange tick
T+1d
-0.82%
call -0.82% · α -0.17%
$327.00
settled 6mo ago
T+5d
-0.52%
call -0.52% · α -1.44%
$327.98
settled 5mo ago
T+20d
-0.96%
call -0.96% · α -5.16%
$326.54
settled 5mo ago
T+60d
-3.94%
call -3.94% · α -10.71%
$316.73
settled 3mo ago

Price Chart

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Executive Summary

Penumbra Inc sent a letter to its stockholders urging them to vote in favor of the proposed acquisition by Boston Scientific Corporation, with the special meeting scheduled for May 6, 2026. The board unanimously recommends approval.

Key Financial Metrics

Deal Type
acquisition

Key Facts

  • Penumbra's board unanimously recommends stockholders vote FOR the merger with Boston Scientific.
  • Special meeting to vote on the merger is scheduled for May 6, 2026.
  • Failing to vote has the same effect as voting against the merger.
  • The proxy statement/prospectus was declared effective on April 1, 2026.
  • This filing is a Rule 425 communication, part of the merger solicitation process.

Financial Impact

Potential acquisition of Penumbra Inc by Boston Scientific, though specific deal value and terms are not disclosed in this filing.

mergervotingacquisition

Risk Factors

  • Risk that the merger fails to obtain required stockholder approval.
  • Potential for regulatory delays or opposition to the acquisition.
  • Market uncertainty until the special meeting vote on May 6, 2026.

Market Snapshot

Exchange
NYSE
Sector
Surgical & Medical Instruments & Apparatus

Investment Themes

Healthcare & Medical Devices

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
425 Filing (Primary)0000950103-26-005882
Document: 0000950103-26-005882-index-headers.html0000950103-26-005882
Document: 0000950103-26-005882-index.html0000950103-26-005882
Document: 0000950103-26-005882.txt0000950103-26-005882
7 reports for PEN
Performance horizon
25% Hit rate 1 of 4 directional calls best @ T+20▲ +1.63%May 6, 2026
Filters
Rows
Reports for PEN — sortable, filterable
TypeNow
Jul 30, 2026
9w ago
Press Release
BEARISH ★ 6/10
$321.19 $321.68▼ −0.15%▲ +2.84%$317.55 (+1.13%)
May 7, 2026
21w ago
425
BULLISH ★ 7/10
$324.65 $319.37▼ −1.63%▼ −4.76%$317.55 (−2.19%)
May 6, 2026
21w ago
8-K
BEARISH ★ 6/10
$324.65 $319.37▲ +1.63%▲ +4.76%$317.55 (+2.19%)
Apr 29, 2026
22w ago
DEFA14A
NEUTRAL ★ 2/10
$326.48 $318.30▼ −2.51%▼ −7.73%$317.55 (−2.74%)
Apr 17, 2026
24w ago
425
NEUTRAL ★ 4/10
$329.71 $326.54▼ −0.96%▼ −5.16%$317.55 (−3.69%)
Apr 1, 2026
26w ago
DEFM14A
BULLISH ★ 8/10
$330.36 $326.48▼ −1.17%▼ −11.05%$317.55 (−3.88%)
Feb 25, 2026
31w ago
8-K
MIXED ★ 7/10
$338.67 $336.27▼ −0.71%▲ +4.53%$317.55 (−6.24%)
Showing 7 of 7

US Market Status

Market Closed — Opens Mon (64h 9m)

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