TLSA's three largest insider shareholders as of September 09, 2026 are Gabriele M Cerrone (Director, 44.81Mn shares), Ivor Elrifi (Chief Executive Officer, 4.79Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Gabriele M Cerrone | Director, TenPercentOwner | 0 | 44,814,587 | 44,814,587 | 90.3% | 07 Aug, 2026 |
| 2 | Ivor Elrifi | Chief Executive Officer | 0 | 4,793,684 | 4,793,684 | 9.7% | 06 Aug, 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 |
|---|---|---|---|---|---|---|---|---|
| 12 Jun, 2026 | Gabriele M Cerrone | Director, TenPercentOwner | Acquired P | 15,000 | $1.11 | $16.65K | 44,772,230 | Indirect |
| 21 Jul, 2026 | Gabriele M Cerrone | Director, TenPercentOwner | Acquired P | 42,357 | $0.99 | $41.93K | 44,814,587 | Indirect |
| 04 Aug, 2026 | Ivor Elrifi | Chief Executive Officer | Acquired P | 83,807 | $0.97 | $81.29K | 4,556,068 | Indirect |
| 05 Aug, 2026 | Ivor Elrifi | Chief Executive Officer | Acquired P | 237,616 | $1.00 | $237.62K | 4,793,684 | Indirect |
| 03 Aug, 2026 | Ivor Elrifi | Chief Executive Officer | Acquired P | 667,000 | $1.00 | $667.00K | 4,472,261 | Indirect |
| 21 Jul, 2026 | Gabriele M Cerrone | Director, TenPercentOwner | Acquired A | 42,357 | $0.99 | $41.93K | 44,814,587 | Indirect |
| 12 Jun, 2026 | Gabriele M Cerrone | Director, TenPercentOwner | Acquired A | 15,000 | $1.11 | $16.65K | 44,772,230 | Indirect |