As of September 09, 2026, LeonaBio's top three insider holders are Glenna Mileson (Chief Financial Officer, 159.93K shares), Hans Moebius (Chief Medical Officer, 91.48K shares), Mark James Litton (President And Ceo, 57.93K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Glenna Mileson | Chief Financial Officer | 159,930 | 0 | 159,930 | 39.4% | 30 Dec, 2022 |
| 2 | Hans Moebius | Chief Medical Officer | 91,482 | 0 | 91,482 | 22.5% | 08 Jan, 2024 |
| 3 | Mark James Litton | President And Ceo | 57,926 | 0 | 57,926 | 14.3% | 05 Mar, 2026 |
| 4 | Kevin Church | Chief Scientific Officer | 25,178 | 0 | 25,178 | 6.2% | 05 Mar, 2026 |
| 5 | Rachel Lenington | Coo And Cdo | 20,870 | 0 | 20,870 | 5.1% | 05 Sep, 2024 |
| 6 | Mark Worthington | General Counsel And Cco | 18,376 | 0 | 18,376 | 4.5% | 05 Mar, 2026 |
| 7 | Martin Javier San | Chief Medical Officer | 15,887 | 0 | 15,887 | 3.9% | 05 Mar, 2026 |
| 8 | Robert Renninger | Chief Financial Officer | 15,851 | 0 | 15,851 | 3.9% | 05 Mar, 2026 |
| 9 | James A Johnson | Director | 500 | 0 | 500 | 0.1% | 30 Mar, 2023 |
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 |
|---|---|---|---|---|---|---|---|---|
| 23 Jun, 2026 | Advisors Llc Perceptive | Director, TenPercentOwner | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Indirect |
| 23 Jun, 2026 | Advisors Llc Perceptive | Director, TenPercentOwner | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Indirect |
| 23 Jun, 2026 | Advisors Llc Perceptive | Director, TenPercentOwner | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Indirect |
| 23 Jun, 2026 | Peter B. Silverman | Director | Acquired A | 2,333 | $0.00 | $0 | 2,333 | Direct |
| 23 Jun, 2026 | Barbara Kosacz | Director | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |
| 23 Jun, 2026 | James A Johnson | Director | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |
| 23 Jun, 2026 | Grant Pickering | Director | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |
| 23 Jun, 2026 | Kelly A Romano | Director | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |
| 23 Jun, 2026 | Fred Callori | Director | Acquired A | 2,333 | $0.00 | $0 | 2,333 | Direct |
| 23 Jun, 2026 | Joseph Edelman | Director | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |
| 05 May, 2026 | Peter B. Silverman | Director | Acquired A | 56,000 | $0.00 | $0 | 56,000 | Direct |
| 05 May, 2026 | Fred Callori | Director | Acquired A | 56,000 | $0.00 | $0 | 56,000 | Direct |
| 09 Apr, 2026 | Barbara Kosacz | Director | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |
| 09 Apr, 2026 | Grant Pickering | Director | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |
| 09 Apr, 2026 | Mark James Litton | President And Ceo | Acquired A | 750,000 | $0.00 | $0 | 750,000 | Direct |
| 09 Apr, 2026 | Mark James Litton | President And Ceo | Acquired A | 750,000 | $0.00 | $0 | 750,000 | Direct |
| 09 Apr, 2026 | Robert Renninger | Chief Financial Officer | Acquired A | 300,000 | $0.00 | $0 | 300,000 | Direct |
| 09 Apr, 2026 | Mark James Litton | President And Ceo | Acquired A | 750,000 | $0.00 | $0 | 750,000 | Direct |
| 09 Apr, 2026 | Mark James Litton | President And Ceo | Acquired A | 750,000 | $0.00 | $0 | 750,000 | Direct |
| 09 Apr, 2026 | John M Jr Fluke | Director | Acquired A | 28,000 | $0.00 | $0 | 28,000 | Direct |