Harrow's top three insider shareholders as of June 06, 2026 are Management Inc. Opaleye (TenPercentOwner, 3.68Mn shares), Management Inc. Opaleye (TenPercentOwner, 3.29Mn shares), Mark L Baum (Chief Executive Officer, 2.99Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Mark L Baum | Chief Executive Officer | 2,986,130 | 0 | 16 Dec, 2025 |
| Andrew R. Boll | President And Cfo | 811,179 | 0 | 16 Dec, 2025 |
| Management Inc. Opaleye | - | 0 | 3,681,428 | 05 Mar, 2026 |
| John P. Saharek | Ceo President, Imprimisrx | 467,388 | 0 | 07 Apr, 2025 |
| Horn R. Lawrence Van | - | 1,860 | 0 | 23 Dec, 2022 |
| Martin A. Makary | - | 45,000 | 0 | 15 Aug, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 03 Mar, 2026 | Management Inc. Opaleye | Common Stock, par value $0.001 per share | D | 59,000 | $39.15 | 3,756,000 | I | S |
| 03 Mar, 2026 | Management Inc. Opaleye | Common Stock, par value $0.001 per share | D | 1,309 | $39.15 | 63,691 | I | S |
| 04 Mar, 2026 | Management Inc. Opaleye | Common Stock, par value $0.001 per share | D | 134,000 | $39.67 | 3,622,000 | I | S |
| 04 Mar, 2026 | Management Inc. Opaleye | Common Stock, par value $0.001 per share | D | 4,263 | $39.67 | 59,428 | I | S |
| 27 Feb, 2026 | Management Inc. Opaleye | Common Stock, par value $0.001 per share | D | 5,000 | $54.18 | 65,000 | I | S |
| 30 Jan, 2026 | Patrick William Sullivan | RSU | A | 25,000 | $0.00 | 25,000 | D | A |
| 30 Jan, 2026 | Patrick William Sullivan | RSU | A | 25,000 | $0.00 | 25,000 | D | A |
| 30 Jan, 2026 | Patrick William Sullivan | RSU | A | 15,000 | $0.00 | 15,000 | D | A |
| 30 Jan, 2026 | Patrick William Sullivan | RSU | A | 15,000 | $0.00 | 15,000 | D | A |
| 06 Jan, 2026 | Management Inc. Opaleye | Common Stock, par value $0.001 per share | D | 20,000 | $53.35 | 70,000 | I | S |
| 12 Dec, 2025 | Andrew R. Boll | Common Stock | A | 60,000 | $3.95 | 837,844 | D | M |
| 12 Dec, 2025 | Mark L Baum | Common Stock | A | 180,000 | $3.95 | 3,066,124 | D | M |
| 12 Dec, 2025 | Andrew R. Boll | Common Stock | D | 26,665 | $47.06 | 811,179 | D | F |
| 12 Dec, 2025 | Mark L Baum | Common Stock | D | 79,994 | $47.06 | 2,986,130 | D | F |
| 12 Dec, 2025 | Mark L Baum | Stock Option (Right to Buy) | D | 180,000 | $0.00 | 0 | D | M |
| 12 Dec, 2025 | Andrew R. Boll | Stock Option (Right to Buy) | D | 60,000 | $0.00 | 0 | D | M |
| 01 Sep, 2025 | Randall E. Pollard | Stock Option (Right to Buy) | A | 30,000 | $0.00 | 30,000 | D | A |
| 01 Sep, 2025 | Randall E. Pollard | Stock Option (Right to Buy) | A | 30,000 | $0.00 | 30,000 | D | A |
| 21 Jul, 2025 | Mark L Baum | Common stock | A | 600,000 | $7.87 | 3,199,462 | D | M |
| 21 Jul, 2025 | Mark L Baum | Common stock | D | 313,338 | $37.08 | 2,886,124 | D | F |