PEN
Penumbra, Inc.
NYSE · usd
Penumbra, Inc. (PEN) trades at $324.39 (-0.17%) as of 7:54:43 PM EDT on Oct 23, 2026, +1.46% over the past month. Market cap is $12.8B, with 4.8 days to cover in short interest.
Stock performance
How Penumbra, Inc. (PEN) stock has performed from one day to one year, with its 52-week range.
- 1D
- -0.18%
- 1W
- +1.10%
- 1M
- +1.46%
- YTD
- +4.34%
- 1Y
- +28.22%
- 52-wk range
- $221.26 – $362.41
Key statistics
Today's trading snapshot for PEN: day range, open, previous close, volume and market cap.
- Day range
- $323.88 – $325.33
- Open
- $324.96
- Prev close
- $324.96
- Volume
- 360.03K
- Market cap
- $12.8B
- Shares out
- 39.39M
Valuation and profitability ratios: P/E, P/S, ROE
Valuation and profitability ratios for Penumbra, Inc.: P/E, P/S, P/B, ROE and more.
- P/E
- 79.71
- P/S
- 8.51
- P/B
- 8.36
- P/FCF
- 59.28
- ROE
- 10.5%
- ROA
- 8.1%
- Debt/Equity
- 0.01
- Div yield
- 0.00%
As of Oct 22, 2026
8-K filings
Material corporate events Penumbra, Inc. has disclosed to the SEC on Form 8-K.
- Shareholder meetingsJun 22, 2026
Penumbra, Inc. held its Annual Meeting of Stockholders on June 18, 2026. At the Annual Meeting, Penumbra's stockholders voted on the following three proposals: (1) Election of Class II Directors with results showing Arani Bose, M.D., Bridget O'Rourke, and Surbhi Sarna were elected; (2) Ratification of Selection of Independent Registered Public Accounting Firm (PricewaterhouseCoopers LLP) with 29,208,244 votes for; and (3) Approval, on an Advisory Basis, of the Compensation of the Company's Named Executive Officers with 24,113,038 votes for.
- Deal agreementsMay 7, 2026
A proposal to adopt the Agreement and Plan of Merger (the 'Merger Agreement'), dated January 14, 2026, by and among the Company, Boston Scientific Corporation, a Delaware corporation ('Parent'), and Pinehurst Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent ('Merger Sub'), pursuant to which Merger Sub will merge with and into the Company (the 'Merger'), with the Company surviving as a wholly owned subsidiary of Parent, was approved.
- Earnings and performanceJan 15, 2026
On January 15, 2026, the Company issued a press release announcing certain preliminary financial results for the fiscal quarter and year ended December 31, 2025. The Company's audited financial statements for the year ended December 31, 2025 are not yet available. Accordingly, these preliminary financial results are an estimate and subject to the completion of the Company's financial closing and other procedures and finalization of the Company's consolidated financial statements.
- Executive leadershipAug 27, 2025
On August 22, 2025, the Board of Directors (the "Board") of Penumbra, Inc. (the "Company") appointed Shruthi Narayan as President of the Company, effective September 1, 2025. Ms. Narayan, 41, joined Penumbra in 2013, serving as a product manager starting off on the stroke franchise, then transitioning to help build the peripheral vascular division and commercialize the Company's vascular portfolio of embolization and thrombectomy products globally.
- Governance documentsMay 30, 2025
On May 28, 2025, Penumbra, Inc. filed an Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware. The Amended and Restated Charter has two effects: (i) to phase in the declassification of Penumbra's Board of Directors over a three-year period to allow the Company's stockholders to vote on the election of directors generally on an annual basis, rather than on a staggered basis (the 'Declassification Amendment'), and (ii) to replace the provisions that require the affirmative vote of sixty-six and two-thirds percent (66 2/3%) of Penumbra's voting stock with a majority voting standard for such actions (the 'Supermajority Amendment').
PEN short interest
How heavily PEN is shorted: shares short, days to cover and average daily volume.
- Days to cover
- 4.8
- Short interest
- 2.25M
- Avg volume
- 472.61K
As of · reported to FINRA twice monthly.
PEN news
The latest news and headlines about Penumbra, Inc. (PEN).
- IART vs. PEN: Which Stock Is the Better Value Option?positiveZacks Investment Research· Oct 1, 2026
- IART or PEN: Which Is the Better Value Stock Right Now?positiveZacks Investment Research· Sep 29, 2026
- Reasons to Retain Penumbra Stock in Your Portfolio for NowneutralZacks Investment Research· Sep 16, 2026
- Incuvate Files Patent Infringement Lawsuit Against PenumbranegativeGlobeNewswire Inc.· Aug 25, 2026
- GuideAI Health Appoints Renowned Interventional Radiologist Dr. James Benenati to Advisory Board Following FDA 510(k) Clearance of VAOTneutralGlobeNewswire Inc.· Jul 6, 2026
Frequently asked questions
What is the Penumbra, Inc. (PEN) stock price today?
Penumbra, Inc. (PEN) is trading at $324.39 (-0.17% on the day) as of 7:54:43 PM EDT on Oct 23, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.
What is Penumbra, Inc.?
Domiciled in the US, Penumbra designs, manufactures, and markets an array of thrombectomy and embolization devices and equipment to mechanically remove blood clots. The firm sells mainly to hospitals and physicians.
What is the short interest in PEN?
As of Sep 30, 2026, PEN has 2.25M shares short and 4.8 days to cover.
What exchange is PEN listed on?
Penumbra, Inc. (PEN) trades on NYSE in USD, in the SURGICAL & MEDICAL INSTRUMENTS & APPARATUS industry.
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