Insider · CIK 0001602787
Kenneth Song
Files at RYZB (RayzeBio, Inc.), FRNM (Perceptive Capital Solutions Corp). First filing -, latest -.
In brief
Kenneth Song files SEC Form 4 as CEO, president and director at RYZB (RayzeBio, Inc.), and also at FRNM (Perceptive Capital Solutions 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; Kenneth Song has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 7 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 20, 2026 | FRNM Perceptive Capital Solutions Corp | CConversion Common Stock | +30,000 | - | - | 30,000 | Jul 24, 2026 |
| Jul 20, 2026 | FRNM Perceptive Capital Solutions Corp | CConversion Class B Ordinary Sharesderivative | -30,000 | - | - | 0 | Jul 24, 2026 |
| Feb 26, 2024 | RYZB RayzeBio, Inc. | DDisposition to issuer Common Stockindirect: By trust | -1,622,968 | $62.50 | $101M | 0 | Feb 27, 2024 |
| Feb 26, 2024 | RYZB RayzeBio, Inc. | DDisposition to issuer Employee Stock Option (right to buy)derivativeindirect: By trust | -758,607 | - | - | 0 | Feb 27, 2024 |
| Feb 26, 2024 | RYZB RayzeBio, Inc. | DDisposition to issuer Employee Stock Option (right to buy)derivativeindirect: By trust | -114,763 | - | - | 0 | Feb 27, 2024 |
| Feb 26, 2024 | RYZB RayzeBio, Inc. | DDisposition to issuer Employee Stock Option (right to buy)derivativeindirect: By trust | -480,000 | - | - | 0 | Feb 27, 2024 |
| Nov 17, 2023 | RYZB RayzeBio, Inc. | AGrant or award Stock Option (right to buy)derivativeindirect: By trust | +480,000 | $0.00 | $0 | 480,000 | Nov 17, 2023 |
Questions about Kenneth Song
Answered from the filings on this page, as of the latest one.
Is Kenneth Song buying or selling?
Kenneth Song has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Kenneth Song's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Kenneth Song has 0.
Where does Kenneth Song file Form 4?
Kenneth Song has filed Form 4 at RYZB (RayzeBio, Inc.) as PRESIDENT AND CHIEF EXECUTIVE; FRNM (Perceptive Capital Solutions Corp). 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.