Insider · CIK 0002125266
Sean William Ostrower
Files at AVAT (Avalanche Treasury Corp). First filing -, latest -.
Sean William Ostrower files SEC Form 4 as CFO at AVAT (Avalanche Treasury Corp). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Sean William Ostrower has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 2 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 28, 2026 | AVAT Avalanche Treasury Corp | AGrant or award Class A Common Stock | +299,401 | $0.00 | $0 | 299,401 | 13 d ago |
| Sep 30, 2026 | AVAT Avalanche Treasury Corp | FTax withholding Class A Common Stock | -15,541 | $1.90 | $30k | 283,860 | 13 d ago |
Questions about Sean William Ostrower
Answered from the filings on this page, as of the latest one.
Is Sean William Ostrower buying or selling?
Sean William Ostrower has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Sean William Ostrower's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Sean William Ostrower has 0.
Where does Sean William Ostrower file Form 4?
Sean William Ostrower has filed Form 4 at AVAT (Avalanche Treasury Corp) as Chief Financial Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.