Insider · CIK 0001733077
Robert W. Ross
Files at: OBX, XLO, SURF. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jan 4, 2019 MForm 4 → | Jan 8, 4:05 pm EST | Surface Oncology, Inc.SURF | 25,000 | $4.14 | $103,400 | 25,000 | — | plan? |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 3, 2026 AForm 4 → | Aug 5, 4:10 pm EDT | Obsidian Therapeutics, Inc.OBX | 37,653 | — | — | 37,653 | — | |
| Jun 11, 2026 AForm 4 → | Jun 12, 4:07 pm EDT | Xilio Therapeutics, Inc.XLO | 5,000 | — | — | 5,000 | — | |
| Mar 1, 2019 AForm 4 → | Mar 4, 6:05 pm EST | Surface Oncology, Inc.SURF | 90,000 | — | — | 90,000 | — | |
| Jan 4, 2019 MForm 4 → | Jan 8, 4:05 pm EST | Surface Oncology, Inc.SURF | 25,000 | — | — | 256,578 | — |