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.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Harrow Inc. June 18, 202598.9%
-
Harrow Inc. June 14, 202499.4%
-
Harrow Inc. June 21, 202399.5%
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 |
Questions about Mark L. Baum
What boards is Mark L. Baum on?
Mark L. Baum sits on the board of Harrow Inc.
What company is Mark L. Baum the CEO of?
Mark L. Baum is Chief Executive Officer of Harrow Inc.
How long has Mark L. Baum served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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