# Portman David J.: insider transactions

SEC CIK 2126186. Roles and transactions as reported on Form 4. Latest Form 4 filed 2026-10-29.

## Roles

| Company | Role | Transactions | First | Latest |
| --- | --- | ---: | --- | --- |
| [LeonaBio, Inc.](/companies/lona.md) | 10% owner | 2 | 2026-10-26 | 2026-10-26 |

## Transactions: 2

Every transaction reported, newest first. Codes P and S are open-market purchases and sales. Reported price is as stated on the form.

| Date | Company | Transaction | Shares | Reported price | Value | Filing |
| --- | --- | --- | ---: | ---: | ---: | --- |
| 2026-10-26 | [LeonaBio, Inc.](/companies/lona.md) | Purchase (P), derivative | 5,502,402 | $3,149.47 | $17.33bn | [Form 4](/filings/0002126186-26-000002.md) |
| 2026-10-26 | [LeonaBio, Inc.](/companies/lona.md) | Purchase (P) | 3,149,470 | $3,149.47 | $9.92bn | [Form 4](/filings/0002126186-26-000002.md) |

Source: SEC EDGAR, Forms 4. Last ingested by Listed: Oct 31, 2026, 08:28 ET. No prices; not investment advice.