Harrow's top three insider shareholders as of September 29, 2026 are Management Inc. Opaleye (TenPercentOwner, 3.68Mn shares), Mark L Baum (Chief Executive Officer, 3.00Mn shares), Mark L Baum (Chief Executive Officer, 2.89Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Mark L Baum | Chief Executive Officer | 5,882,254 | 0 | 5,882,254 | 49.9% | 15 May, 2026 |
| 2 | Management Inc. Opaleye | TenPercentOwner | 0 | 3,681,428 | 3,681,428 | 31.2% | 05 Mar, 2026 |
| 3 | Andrew R. Boll | President And Cfo | 1,382,768 | 0 | 1,382,768 | 11.7% | 15 May, 2026 |
| 4 | John P. Saharek | Ceo President, Imprimisrx | 767,051 | 0 | 767,051 | 6.5% | 07 Apr, 2025 |
| 5 | Martin A. Makary | Director | 45,000 | 0 | 45,000 | 0.4% | 15 Aug, 2023 |
| 6 | Richard L Md Lindstrom | Director | 0 | 26,100 | 26,100 | 0.2% | 03 Oct, 2022 |
| 7 | Horn R. Lawrence Van | Director | 1,860 | 0 | 1,860 | 0.0% | 23 Dec, 2022 |
| 8 | Adrienne L Graves | Director | 1,000 | 0 | 1,000 | 0.0% | 19 May, 2026 |
| 9 | Lauren P Silvernail | Director | 1,000 | 0 | 1,000 | 0.0% | 19 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 14 Aug, 2026 | Amir Shojaei | Chief Scientific Officer | Acquired M | 11,250 | $35.96 | $404.55K | 11,250 | Direct |
| 14 Aug, 2026 | Amir Shojaei | Chief Scientific Officer | Disposed S | 11,250 | $40.00 | $450.00K | 0 | Direct |
| 14 Aug, 2026 | Amir Shojaei | Chief Scientific Officer | Disposed M | 11,250 | $35.96 | $404.55K | 18,750 | Direct |
| 18 Jun, 2026 | Lauren P Silvernail | Director | Acquired A | 5,248 | $0.00 | $0 | 5,248 | Direct |
| 18 Jun, 2026 | Adrienne L Graves | Director | Acquired A | 5,248 | $0.00 | $0 | 5,248 | Direct |
| 18 Jun, 2026 | Perry J. Sternberg | Director | Acquired A | 5,248 | $0.00 | $0 | 5,248 | Direct |
| 18 May, 2026 | Adrienne L Graves | Director | Acquired P | 1,000 | $31.07 | $31.07K | 1,000 | Direct |
| 18 May, 2026 | Lauren P Silvernail | Director | Acquired P | 1,000 | $31.00 | $31.00K | 1,000 | Direct |
| 15 May, 2026 | Amir Shojaei | Chief Scientific Officer | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 14 May, 2026 | Mark L Baum | Chief Executive Officer | Acquired P | 10,000 | $30.20 | $302.00K | 2,996,130 | Direct |
| 14 May, 2026 | Andrew R. Boll | President And Cfo | Acquired P | 3,500 | $29.90 | $104.65K | 814,679 | Direct |
| 03 Mar, 2026 | Management Inc. Opaleye | TenPercentOwner | Disposed S | 59,000 | $39.15 | $2.31Mn | 3,756,000 | Indirect |
| 03 Mar, 2026 | Management Inc. Opaleye | TenPercentOwner | Disposed S | 1,309 | $39.15 | $51.25K | 63,691 | Indirect |
| 04 Mar, 2026 | Management Inc. Opaleye | TenPercentOwner | Disposed S | 134,000 | $39.67 | $5.32Mn | 3,622,000 | Indirect |
| 04 Mar, 2026 | Management Inc. Opaleye | TenPercentOwner | Disposed S | 4,263 | $39.67 | $169.12K | 59,428 | Indirect |
| 27 Feb, 2026 | Management Inc. Opaleye | TenPercentOwner | Disposed S | 5,000 | $54.18 | $270.90K | 65,000 | Indirect |
| 30 Jan, 2026 | Patrick William Sullivan | Chief Commercial Officer | Acquired A | 25,000 | $0.00 | $0 | 25,000 | Direct |
| 30 Jan, 2026 | Patrick William Sullivan | Chief Commercial Officer | Acquired A | 15,000 | $0.00 | $0 | 15,000 | Direct |
| 06 Jan, 2026 | Management Inc. Opaleye | TenPercentOwner | Disposed S | 20,000 | $53.35 | $1.07Mn | 70,000 | Indirect |
| 12 Dec, 2025 | Mark L Baum | Chief Executive Officer | Acquired M | 180,000 | $3.95 | $711.00K | 3,066,124 | Direct |