Mark L. Baum
Chief Executive Officer at Harrow Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Harrow Inc., 3 years.
Harrow Inc.
Director · CHIEF EXECUTIVE OFFICER
Chief executive roles
Harrow Inc.
· Chief Executive Officer
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| May 14, 2026 | Harrow Inc. | Open-market purchase | +10,000 | $30.20 | $302,000 |
| Dec 12, 2025 | Harrow Inc. | Option exercise | +180,000 | $3.95 | $711,000 |
| Dec 12, 2025 | Harrow Inc. | Shares withheld for tax | −79,994 | $47.06 | $3,764,518 |
| Jul 21, 2025 | Harrow Inc. | Option exercise | +600,000 | $7.87 | $4,722,000 |
| Jul 21, 2025 | Harrow Inc. | Shares withheld for tax | −313,338 | $37.08 | $11,618,573 |
| Apr 7, 2025 | Harrow Inc. | Shares withheld for tax | −300,363 | $23.09 | $6,935,382 |
| Apr 3, 2025 | Harrow Inc. | Option exercise | +762,300 | — | — |
| Mar 22, 2024 | Harrow Inc. | Open-market purchase | +9,000 | $11.59 | $104,310 |
| Feb 20, 2024 | Harrow Inc. | Option exercise | +150,000 | $10.67 | $1,600,500 |
| Feb 20, 2024 | Harrow Inc. | Option exercise | −59,836 | $10.67 | $638,450 |
| Feb 7, 2024 | Harrow Inc. | Option exercise | +15,400 | $7.71 | $118,734 |
| Nov 16, 2023 | Harrow Inc. | Open-market purchase | +7,500 | $8.11 | $60,825 |
| Aug 14, 2023 | Harrow Inc. | Open-market purchase | +5,800 | $17.05 | $98,890 |
| Jul 18, 2023 | Harrow Inc. | Option exercise | +762,300 | — | — |
| Jul 18, 2023 | Harrow Inc. | Shares withheld for tax | −299,968 | $18.23 | $5,468,417 |
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