PEN

Penumbra Inc

SEC CIK 1321732
$318.71 −6.2% · 90 days
90-day buys
$0
0 open-market
90-day sells
$32.8K
1 open-market
Net insider flow
−$32.8K
Net selling
Filings shown
39
Most recent
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At a glance

Over the last 90 days, insiders at PEN have sold a net $32.8K of stock (0 open-market buys vs 1 sell).

Largest recent trade: Bose Arani sold $1.52M of PEN, trimming their stake 2%.

Most active filer: Bose Arani, with 8 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for PEN, newest first
View on SEC EDGAR ↗
PEN
Tax withholding Roberts Johanna · EVP, Gen. Counsel & Secretary · Tax withholding · filed Dec 17, 2025 ΔOwn −1.8%
−$349.3K
1,130 sh @ $309
PEN
Sell Bose Arani · Director · Open-market sale · filed Dec 15, 2025 ΔOwn −0.7%

Bose Arani sold $619.5K of PEN, trimming their stake 1%.

−$619.5K
2,030 sh @ $305
PEN
Sell Bose Arani · Director · Open-market sale · filed Dec 15, 2025 ΔOwn −1.8%

Bose Arani sold $1.52M of PEN, trimming their stake 2%.

−$1.52M
4,946 sh @ $307
PEN
Sell Bose Arani · Director · Open-market sale · filed Dec 15, 2025 ΔOwn −0.2%

Bose Arani sold $159.7K of PEN.

−$159.7K
520 sh @ $307
PEN
Sell Bose Arani · Director · Open-market sale · filed Dec 15, 2025

Bose Arani sold $1.2K of PEN.

−$1.2K
4 sh @ $308
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PEN
Sell Bose Arani · Director · Open-market sale · filed Dec 15, 2025 ΔOwn −0.8%

Bose Arani sold $646.5K of PEN, trimming their stake 1%.

−$646.5K
2,082 sh @ $311
PEN
Sell Bose Arani · Director · Open-market sale · filed Dec 15, 2025 ΔOwn −1.3%

Bose Arani sold $1.1M of PEN, trimming their stake 1%.

−$1.1M
3,523 sh @ $311
PEN
Sell Bose Arani · Director · Open-market sale · filed Dec 15, 2025 ΔOwn −0.7%

Bose Arani sold $591.6K of PEN, trimming their stake 1%.

−$591.6K
1,895 sh @ $312
PEN
Sell Roberts Johanna · EVP, Gen. Counsel & Secretary · Open-market sale · filed Dec 9, 2025 ΔOwn −0.5%

Roberts Johanna sold $90K of PEN.

−$90K
300 sh @ $300
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About PEN insider activity

This page tracks every recent Form 4 filed for Penumbra Inc with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is PEN insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for Penumbra Inc usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.