Insider · SEC Form 4 filer

R Whitmore

Companies

Where they file as an insider

Solesence (SLSN) Director Latest filing Dec 24, 2025

Track record

Did their buys beat the typical stock?

Open-market buys59
Quarters checked 6 months later1
Beat the typical stock —
Quarters too new to check0

Too soon to tell. 1 quarter has finished so far. We show a record once 3 have.

Solesence (SLSN) Bought Nov 14–Dec 24, 2025 · $68.1K · 37,556 shares Behind typical Dec 31, 2025 $1.59 → Jun 30, 2026 $0.74 · −53.9% (typical stock +4.7%)
Nanophase Technologies (NANX) Bought Oct 29, 2024 · $37.9K · 45,333 shares Not counted Not counted. We have no fund price for this stock on both Dec 31, 2024 and Jun 30, 2025.
Nanophase Technologies (NANX) Bought Aug 16–Sep 24, 2024 · $150K · 95,168 shares Not counted Not counted. We have no fund price for this stock on both Sep 30, 2024 and Mar 31, 2025.
Nanophase Technologies (NANX) Bought May 9–Jun 11, 2024 · $117K · 80,896 shares Not counted Not counted. We have no fund price for this stock on both Jun 30, 2024 and Dec 31, 2024.
Nanophase Technologies (NANX) Bought Feb 9, 2024 · $73K · 182,433 shares Not counted Not counted. We have no fund price for this stock on both Mar 31, 2024 and Sep 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