Insiders / Ross Robert W.
Ross Robert W.
CIK 1733077personinsider
Companies
3
First seen
Jan 15, 2021
Last activity
Aug 5, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Surface Oncology, Inc. · SURF | 0 | — |
| Obsidian Therapeutics, Inc. · OBX | — | — |
| Xilio Therapeutics, Inc. · XLO | — | — |
All securities held
2 positions · latest reported per filing
Derivatives
| Company | Security | Shares |
|---|---|---|
| Obsidian Therapeutics, Inc. | Options | 37,653 |
| Xilio Therapeutics, Inc. | Options | 5,000 |
Ownership percentages elsewhere on the site count common and ordinary shares only, because that is what shares outstanding are measured in. Everything above is a real holding; not all of it is a share of the company.
Activity
InsidersInstitutions
This person's trades in company stock, across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Jul 21, 2021 | Sell Open-market sale | SURF Surface Oncology, Inc. Common Stock | $204.3K | -34K -38.07% | 54,500 | medium |
| Jan 14, 2021 | Sell Open-market sale | SURF Surface Oncology, Inc. Common Stock | $83.7K | -7K -7.14% | 91,000 | low |
| Jan 15, 2021 | Sell Open-market sale | SURF Surface Oncology, Inc. Common Stock | $24.5K |