Insider · SEC Form 4 filer

Joseph Edelman

Companies

Where they file as an insider

Immatics N.V. (IMTX) Director Latest filing Aug 26, 2026
Kardigan (KARD) Director Latest filing Jun 17, 2026
Lyra Therapeutics (LYRA) 10% owner Latest filing Nov 10, 2025
Solid Biosciences (SLDB) Director, 10% owner Latest filing Feb 19, 2025
MeiraGTx (MGTX) Director, 10% owner Latest filing Aug 12, 2024
Aldeyra Therapeutics (ALDX) 10% owner Latest filing Apr 5, 2024
Athira Pharma (ATHA) Director, 10% owner Latest filing Dec 29, 2023
Verrica Pharmaceuticals (VRCA) 10% owner Latest filing Dec 29, 2023

And 2 more companies with older filings.

Track record

Did their buys beat the typical stock?

Open-market buys7
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.

Immatics N.V. (IMTX) Bought Aug 26, 2026 · $7.5M · 863,060 shares Too new Too new. Its 6-month check uses prices as of Mar 31, 2027.
Solid Biosciences (SLDB) Bought Feb 19, 2025 · $20.1M · 5M shares Beat typical Mar 31, 2025 $3.70 → Sep 30, 2025 $6.17 · +66.8% (typical stock +7.3%)
MeiraGTx (MGTX) Bought Aug 12, 2024 · $5M · 1.25M shares Beat typical Sep 30, 2024 $4.17 → Mar 31, 2025 $6.78 · +62.6% (typical stock −7.5%)
Athira Pharma (ATHA) Bought Dec 27–29, 2023 · $1.46M · 605,686 shares Not counted Not counted. We have no fund price for this stock on both Dec 31, 2023 and Jun 30, 2024.
Cerevel Therapeutics (CERE) Bought Oct 16, 2023 · $20M · 876,808 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