Insider · SEC Form 4 filer

Richard Gaynor

Companies

Where they file as an insider

Zai Lab (ZLAB) Director Latest filing Nov 10, 2026
Alkermes (ALKS) Director Latest filing May 21, 2026

Track record

Did their buys beat the typical stock?

Open-market buys3
Quarters checked 6 months later1
Beat the typical stock —
Quarters too new to check2

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

Zai Lab (ZLAB) Bought Nov 10, 2026 · $33.4K · 1,228 shares Too new Too new. Its 6-month check uses prices as of Jun 30, 2027.
Zai Lab (ZLAB) Bought Jul 1, 2026 · $33.1K · 1,736 shares Too new Too new. Its 6-month check uses prices as of Mar 31, 2027.
Zai Lab (ZLAB) Bought Mar 17, 2026 · $32.7K · 1,731 shares Beat typical Mar 31, 2026 $18.81 → Sep 30, 2026 $26.34 · +40.0% (typical stock +1.7%)

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