Insider · SEC Form 4 filer

Markus Puhlmann

Companies

Where they file as an insider

Perspective Therapeutics (CATX) Chief Medical Officer Latest filing Nov 12, 2026

Track record

Did their buys beat the typical stock?

Open-market buys6
Quarters checked 6 months later0
Beat the typical stock —
Quarters too new to check1

Too soon to tell. None of their buys has a finished 6-month check yet.

Perspective Therapeutics (CATX) Bought Nov 11–12, 2026 · $34.5K · 41,000 shares Too new Too new. Its 6-month check uses prices as of Jun 30, 2027.
Perspective Therapeutics (CATX) Bought Jan 24, 2024 · $140K · 280,000 shares Not counted Not counted. We have no fund price for this stock on both Mar 31, 2024 and Sep 30, 2024.
Perspective Therapeutics (CATX) Bought Dec 15–19, 2023 · $188K · 595,425 shares Not counted Not counted. We have no fund price for this stock on both Dec 31, 2023 and Jun 30, 2024.

Each row is one stock in one quarter, however many buys it took. We take the stock's price at the end of that quarter and again 6 months later, and compare it with the typical stock over the same dates. Prices are quarter-end values from funds' 13F reports (the middle value across 3 or more funds), through Sep 30, 2026. Moves past 3 times up or down, mostly stock splits, are left out. How we tested this.

Past results. This is data, not advice.

Where this data comes from. Insider trades, fund holdings, activist stakes and company results come from public SEC EDGAR filings (Forms 4, 13F, 13D/13G, 10-Q and 8-K). Congress trades come from the STOCK Act reports members file with the House Clerk and the Senate. Daily closing prices come from post-no-preference/stocks on DoltHub, a community-run database shared under CC BY-SA 4.0; the prices we show stay under that license. They are each day's close, not live or official exchange prices.

This is data, not investment advice. About StockToast · Your watchlist