What is the shares outstanding for Penumbra, Inc. (PEN)?

The shares outstanding for PEN stock is 39.57M.

What is the TTM average shares outstanding for Penumbra, Inc. (PEN)?

The TTM average shares outstanding for PEN stock is 39.41M.

What is the 3Y average shares outstanding for Penumbra, Inc. (PEN)?

The 3Y average shares outstanding for PEN stock is 39.31M.

What is the 5Y average shares outstanding for Penumbra, Inc. (PEN)?

The 5Y average shares outstanding for PEN stock is 39.13M.

What is the 10Y average shares outstanding for Penumbra, Inc. (PEN)?

The 10Y average shares outstanding for PEN stock is 37.23M.

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Penumbra, Inc.(PEN)

Medical - Devices · Alameda, CA

$321.00-2.05 (-0.63%)

Delayed quote: Aug 27, 2026, 4:00 PM EDT

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Shares Outstanding: 39.57M

Basis: Latest reported fiscal quarter. Source: stored company filings and market data; unavailable inputs remain N/A.

The shares outstanding is 39.57M as of the fiscal period ended Tuesday, June 30, 2026. It is above its 12-month average by 0.41% (39.41M).

Market Cap|Share Buybacks|EPS|All Metrics

Shares Outstanding

PEN Shares Outstanding

39.57M

Reported quarterly weighted average share count; no daily interpolation.

+17.23% over 10Y

PEN Shares Outstanding

PEN Average Shares Outstanding Chart

PEN Shares Outstanding

PEN Current vs Average Shares Outstanding Chart

PEN Shares Outstanding Metrics

SHARES OUTSTANDING

39.57M

SHARES OUTSTANDING AVG TTM

39.41M

SHARES OUTSTANDING AVG 3Y

39.31M

SHARES OUTSTANDING AVG 5Y

39.13M

SHARES OUTSTANDING AVG 10Y

37.23M

SHARES OUTSTANDING AVG 15Y

N/A

SHARES OUTSTANDING AVG 20Y

N/A

CURRENT VS TTM AVG

+0.41%

CURRENT VS 3Y AVG

+0.66%

CURRENT VS 5Y AVG

+1.14%

CURRENT VS 10Y AVG

+6.28%

CURRENT VS 15Y AVG

N/A

CURRENT VS 20Y AVG

N/A

Share Structure

Shares Outstanding

38.92M

Float Shares

N/A

Stock Price

$321.00

Market Cap

$12.6B

Quarterly Shares Outstanding History

Period	Weighted Average Shares	QoQ Change
Quarter ended Jun 2026	39.57M	+0.07%
Quarter ended Mar 2026	39.54M	+0.38%
Quarter ended Dec 2025	39.39M	+0.23%
Quarter ended Sep 2025	39.30M	+0.14%
Quarter ended Jun 2025	39.25M	+0.21%
Quarter ended Mar 2025	39.16M	-0.27%
Quarter ended Dec 2024	39.27M	+0.23%
Quarter ended Sep 2024	39.18M	+0.99%
Quarter ended Jun 2024	38.79M	-1.51%
Quarter ended Mar 2024	39.39M	+0.25%
Quarter ended Dec 2023	39.29M	+0.18%
Quarter ended Sep 2023	39.22M	+0.05%
Quarter ended Jun 2023	39.20M	+0.32%
Quarter ended Mar 2023	39.08M	+0.46%
Quarter ended Dec 2022	38.90M	+2.58%
Quarter ended Sep 2022	37.92M	+0.40%
Quarter ended Jun 2022	37.77M	-2.43%
Quarter ended Mar 2022	38.71M	+3.36%
Quarter ended Dec 2021	37.45M	-0.43%
Quarter ended Sep 2021	37.61M	+0.08%
Quarter ended Jun 2021	37.58M	+0.13%
Quarter ended Mar 2021	37.53M	+0.21%
Quarter ended Dec 2020	37.45M	+3.44%
Quarter ended Sep 2020	36.21M	+2.28%
Quarter ended Jun 2020	35.40M	-2.65%
Quarter ended Mar 2020	36.36M	+0.14%
Quarter ended Dec 2019	36.31M	+0.11%
Quarter ended Sep 2019	36.27M	+0.16%
Quarter ended Jun 2019	36.21M	+0.00%
Quarter ended Mar 2019	36.21M	+0.17%
Quarter ended Dec 2018	36.15M	+5.55%
Quarter ended Sep 2018	34.25M	-5.17%
Quarter ended Jun 2018	36.12M	+0.55%
Quarter ended Mar 2018	35.92M	+0.23%
Quarter ended Dec 2017	35.83M	+0.47%
Quarter ended Sep 2017	35.66M	+7.36%
Quarter ended Jun 2017	33.22M	+5.09%
Quarter ended Mar 2017	31.61M	+1.82%
Quarter ended Dec 2016	31.05M	-8.03%
Quarter ended Sep 2016	33.76M	+1.34%
Quarter ended Jun 2016	33.31M	+0.86%
Quarter ended Mar 2016	33.02M	+2.17%
Quarter ended Dec 2015	32.32M	+3.99%
Quarter ended Sep 2015	31.08M	+4.16%
Quarter ended Jun 2015	29.84M	+21.74%
Quarter ended Mar 2015	24.51M	+0.00%
Quarter ended Dec 2014	24.51M	+0.00%
Quarter ended Sep 2014	24.51M	+0.00%
Quarter ended Jun 2014	24.51M	+0.00%
Quarter ended Mar 2014	24.51M	N/A

Relationship: Market Cap = Shares Outstanding × Stock Price

Key concepts:

Float shares: Shares available for public trading
Dilution: When new shares are issued, existing shareholders own less
Buybacks: Reduce share count, increasing EPS and ownership stake
Stock splits: Increase share count but don't change market cap

Shares Outstanding Formula & Definition

Shares Outstanding represents the reported weighted average share count used for per-share metrics. Changes in share count affect EPS and ownership dilution.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

Shares Outstanding FAQ

What is the shares outstanding for Penumbra, Inc. (PEN)?: The shares outstanding for PEN stock is 39.57M.
What is the TTM average shares outstanding for Penumbra, Inc. (PEN)?: The TTM average shares outstanding for PEN stock is 39.41M.
What is the 3Y average shares outstanding for Penumbra, Inc. (PEN)?: The 3Y average shares outstanding for PEN stock is 39.31M.
What is the 5Y average shares outstanding for Penumbra, Inc. (PEN)?: The 5Y average shares outstanding for PEN stock is 39.13M.
What is the 10Y average shares outstanding for Penumbra, Inc. (PEN)?: The 10Y average shares outstanding for PEN stock is 37.23M.

PEN Shares Outstanding History

DATE	SHARES OUTSTANDING
2026-06-30	39.57M
2026-03-31	39.54M
2025-12-31	39.39M
2025-09-30	39.30M
2025-06-30	39.25M
2025-03-31	39.16M
2024-12-31	39.27M
2024-09-30	39.18M
2024-06-30	38.79M
2024-03-31	39.39M
2023-12-31	39.29M
2023-09-30	39.22M
2023-06-30	39.20M
2023-03-31	39.08M
2022-12-31	38.90M
2022-09-30	37.92M
2022-06-30	37.77M
2022-03-31	38.71M
2021-12-31	37.45M
2021-09-30	37.61M
2021-06-30	37.58M
2021-03-31	37.53M
2020-12-31	37.45M
2020-09-30	36.21M
2020-06-30	35.40M
2020-03-31	36.36M
2019-12-31	36.31M
2019-09-30	36.27M
2019-06-30	36.21M
2019-03-31	36.21M
2018-12-31	36.15M
2018-09-30	34.25M
2018-06-30	36.12M
2018-03-31	35.92M
2017-12-31	35.83M
2017-09-30	35.66M
2017-06-30	33.22M
2017-03-31	31.61M
2016-12-31	31.05M
2016-09-30	33.76M
2016-06-30	33.31M
2016-03-31	33.02M
2015-12-31	32.32M
2015-09-30	31.08M
2015-06-30	29.84M
2015-03-31	24.51M
2014-12-31	24.51M
2014-09-30	24.51M
2014-06-30	24.51M
2014-03-31	24.51M

About Penumbra, Inc.

Penumbra, Inc., together with its subsidiaries, designs, develops, manufactures, and markets medical devices in the United States and internationally. It offers computer-assisted vacuum thrombectomy; peripheral thrombectomy products, including the Indigo System for power aspiration of thrombus in the body; Lightning Flash, a mechanical thrombectomy system; Lightning Bolt 7, an arterial thrombectomy system; and CAT RX. It also provides access products, including guide catheters and the Penumbra distal delivery catheters under the Neuron, Neuron MAX, BENCHMARK, BMX, DDC, Access25; MIDWAY, and PX SLIM brands; Penumbra System, an integrated mechanical thrombectomy system comprising reperfusion catheters and separators, the 3D Revascularization device, aspiration tubing, aspiration pump, and other components and accessories under the Penumbra RED, SENDit, JET, ACE, BMX, Max, 3D Revascularization Device, and Penumbra ENGINE brands; and neuro embolization coiling systems that include the Penumbra Coil 400, for the treatment of aneurysms and other complex lesions, detachable coils of neurovascular lesions under the Penumbra SMART COIL, SwiftSET, and Penumbra SwiftPAC Coil brands; and POD400 and PAC400 brands. In addition, it provides peripheral embolization products, such as Ruby Embolization Platform, which consists of detachable coils for peripheral applications; Ruby LP and XL Embolization Platform; Penumbra LANTERN Delivery Microcatheter, a low-profile microcatheter with a high-flow lumen; POD (Penumbra Occlusion Device) System, a single device solution; Packing Coil LP; and Packing Coil, a complementary device for use in other peripheral embolization products. Further, it offers neurosurgical tools comprising the Artemis Neuro Evacuation Device for surgical removal of fluid and tissue from the ventricles and cerebrum. It sells its products through direct sales organizations and distributors. The company was incorporated in 2004 and is based in Alameda, California.

Alameda, CA

4,700 employees

www.penumbrainc.com

Healthcare / Medical - Devices

Sector: Healthcare
Industry: Medical - Devices
CEO: Adam Elsesser

View full financials

Shares Outstanding: 39.57M

PEN Shares Outstanding

PEN Average Shares Outstanding Chart

PEN Current vs Average Shares Outstanding Chart

PEN Shares Outstanding Metrics

Share Structure

Quarterly Shares Outstanding History

Shares Outstanding Formula & Definition

Shares Outstanding FAQ

PEN Shares Outstanding History

Related Metrics

Shares Outstanding: 39.57M

PEN Shares Outstanding

PEN Average Shares Outstanding Chart

PEN Current vs Average Shares Outstanding Chart

PEN Shares Outstanding Metrics

Share Structure

Quarterly Shares Outstanding History

Shares Outstanding Formula & Definition

Shares Outstanding FAQ

PEN Shares Outstanding History

Related Metrics