Insider · SEC Form 4 filer

Randall Weisenburger

Companies

Where they file as an insider

MP Materials (MP) Director Latest filing Nov 10, 2026
Corsair Gaming (CRSR) Director Latest filing Jun 16, 2026
Carnival (CCL) Director Latest filing May 8, 2026
Carnival (CUK) Director Latest filing May 7, 2026
Valero Energy (VLO) Director Latest filing May 6, 2026

Track record

Did their buys beat the typical stock?

Open-market buys5
Quarters checked 6 months later2
Beat the typical stock —
Quarters too new to check1

Too soon to tell. 2 quarters have finished so far. We show a record once 3 have.

MP Materials (MP) Bought Nov 10, 2026 · $1.98M · 55,000 shares Too new Too new. Its 6-month check uses prices as of Jun 30, 2027.
Carnival (CCL) Bought Oct 10–19, 2023 · $5.7M · 450,000 shares Beat typical Dec 31, 2023 $18.54 → Jun 30, 2024 $18.72 · +1.0% (typical stock −1.2%)
Carnival (CUK) Bought Oct 10–19, 2023 · $5.7M · 450,000 shares Beat typical Dec 31, 2023 $16.86 → Jun 30, 2024 $17.22 · +2.1% (typical stock −1.2%)

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