PRTA (PRTA) insider buying

· Market cap $463M

7 open-market purchases of PRTA by PRTA's executives and directors since September 2026, worth $6M in total, from SEC Form 4 filings.

The most recent: William P Scully, Major Shareholder bought $770,904 on October 8, 2026.

The biggest buyer over the period is William P Scully (Major Shareholder): 7 purchases, $6M.

By year

YearPurchasesValue
20267$6M

Biggest buyers

InsiderBuysValue
William P Scully
Major Shareholder
7$6M

Every purchase

Newest first. From SEC Form 4 filings. Insider buying across the market.

DateInsiderSharesPriceValueFiling
Oct 8, 2026 William P Scully
Major Shareholder
90,000$8.57$770,904 Form 4
Oct 7, 2026 William P Scully
Major Shareholder
125,000$8.40$1M Form 4
Oct 2, 2026 William P Scully
Major Shareholder
100,000$8.57$857,240 Form 4
Sep 29, 2026 William P Scully
Major Shareholder
162,000$8.68$1M Form 4
Sep 28, 2026 William P Scully
Major Shareholder
103,500$8.60$889,872 Form 4
Sep 18, 2026 William P Scully
Major Shareholder
100,000$8.43$843,460 Form 4
Sep 2, 2026 William P Scully
Major Shareholder
27,000$9.47$255,739 Form 4
Every line, every quarterThe deep dive has fifteen-plus years of statements, quarterly results, charts and valuation models for PRTA.
Open PRTA in Investingly

Questions

Are PRTA insiders buying the stock?

7 open-market purchases of PRTA by PRTA's executives and directors since September 2026, worth $6M in total, from SEC Form 4 filings. The most recent: William P Scully, Major Shareholder bought $770,904 on October 8, 2026.

What counts as insider buying here?

Open-market purchases (Form 4 code P) by officers and directors. Option exercises, grants and purchases by 10% owners are left out.

From PRTA's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.