PEN short interest surges, indicating growing pessimism among investors

Daniel Torres

The buying and selling of stock by a company’s insider give investors a sense that the stock will rise or fall in the future. Penumbra Inc shares valued at $58,151 were sold by Grewal Harpreet on Jan 06 ’26. At $312.64 per share, Grewal Harpreet sold 186 shares. The insider’s holdings dropped to 8,230 shares worth approximately $2.94 million following the completion of this transaction.

Also, Wilder Thomas sold 186 shares, netting a total of over 57,794 in proceeds. Following the sale of shares at $310.72 each, the insider now holds 0 shares.

Before that, Grewal Harpreet had added 186 shares to its account. In a trade valued at $58,151, the Director bought Penumbra Inc shares for $312.64 each.

As published in a research note from JP Morgan on December 18, 2025, Penumbra Inc [PEN] has been rated up from a Neutral to an Overweight and the price target has been revised to $370. Analysts at Citigroup upgraded the stock from ‘”a Neutral”‘ to ‘”a Buy”‘ outlook in a report released in mid December. As of November 18, 2025, Wells Fargo has initiated its “an Underweight” rating for PEN. Earlier on October 08, 2025, Needham upgraded its rating. Their new recommendation was “a Buy” for PEN stock which previously was a “a Hold”.

Analyzing PEN Stock Performance

On last trading session, Penumbra Inc [NYSE: PEN] rose 0.63% to $357.68. The stock’s lowest price that day was $355.16, but it reached a high of $362.41 in the same session. During the last five days, there has been a surge of approximately 18.84%. Over the course of the year, Penumbra Inc shares have jumped approximately 35.64%.

Is Penumbra Inc subject to short interest?

Stocks of Penumbra Inc saw a sharp rise in short interest on 2025-12-31 jumping by 0.19 million shares to 1.71 million. Data from Yahoo Finance shows that the short interest on 2025-11-28 was 1.51 million shares. A jump of 11.4% in short interest reflects a negative sentiment towards the stock. Despite the fact that short shares comprise just 3.78 of the overall float, the days-to-cover ratio (short ratio) jumped to 3.78.

Which companies own the most shares of Penumbra Inc (PEN)?

In terms of Penumbra Inc share price expectations, FactSet research, analysts set an average price target of 374 in the next 12 months, up nearly 5.22% from the previous closing price of $355.44. Analysts anticipate Penumbra Inc stock to reach 388 by 2026, with the lowest price target being 335. In spite of this, 11 analysts ranked Penumbra Inc stock as Buy at the end of 2026. On September 02, 2025, Evercore ISI assigned a price target of “an Outperform” to the stock and initiated coverage with a $300.

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