HTFL's three largest insider shareholders as of September 29, 2026 are Capital Life Sciences Investors, Llc Bain (TenPercentOwner, 8.45Mn shares), Partners Management Lp Healthcor (TenPercentOwner, 6.70Mn shares), Jeffrey C Lightcap (Director, 6.70Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Capital Life Sciences Investors, Llc Bain | TenPercentOwner | 0 | 8,448,158 | 8,448,158 | 42.6% | 30 Apr, 2026 |
| 2 | Partners Management Lp Healthcor | TenPercentOwner | 0 | 6,697,556 | 6,697,556 | 33.8% | 22 Aug, 2025 |
| 3 | Casey M Tansey | Director | 16,447 | 3,171,062 | 3,187,509 | 16.1% | 11 Aug, 2025 |
| 4 | John C.M. Farquhar | Chief Executive Officer | 321,914 | 0 | 321,914 | 1.6% | 14 Sep, 2026 |
| 5 | Jeffrey C Lightcap | Director | 293,681 | 0 | 293,681 | 1.5% | 28 Jul, 2026 |
| 6 | Vikram Verghese | Chief Financial Officer | 291,050 | 0 | 291,050 | 1.5% | 18 Sep, 2026 |
| 7 | William C Weldon | Director | 243,931 | 0 | 243,931 | 1.2% | 10 Jul, 2026 |
| 8 | Timothy C Barabe | Director | 188,231 | 0 | 188,231 | 0.9% | 24 Jul, 2026 |
| 9 | Campbell Rogers | Chief Medical Officer | 79,956 | 0 | 79,956 | 0.4% | 21 Sep, 2026 |
| 10 | Marie L. Jones | Chief Accounting Officer | 34,701 | 0 | 34,701 | 0.2% | 08 May, 2026 |
| 11 | Julie A Cullivan | Director | 27,291 | 0 | 27,291 | 0.1% | 06 Mar, 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 |
|---|---|---|---|---|---|---|---|---|
| 18 Sep, 2026 | Campbell Rogers | Chief Medical Officer | Acquired M | 12,329 | $8.33 | $102.70K | 98,788 | Direct |
| 18 Sep, 2026 | Campbell Rogers | Chief Medical Officer | Acquired M | 850 | $2.22 | $1.89K | 99,638 | Direct |
| 18 Sep, 2026 | Campbell Rogers | Chief Medical Officer | Disposed S | 19,682 | $50.15 | $987.05K | 79,956 | Direct |
| 18 Sep, 2026 | Campbell Rogers | Chief Medical Officer | Disposed M | 12,329 | $0.00 | $0 | 31,456 | Direct |
| 18 Sep, 2026 | Campbell Rogers | Chief Medical Officer | Disposed M | 850 | $0.00 | $0 | 70,783 | Direct |
| 17 Sep, 2026 | Vikram Verghese | Chief Financial Officer | Disposed S | 7,579 | $50.11 | $379.82K | 171,949 | Direct |
| 18 Sep, 2026 | Vikram Verghese | Chief Financial Officer | Disposed S | 16,766 | $50.75 | $850.93K | 155,183 | Direct |
| 08 Sep, 2026 | Vikram Verghese | Chief Financial Officer | Disposed S | 6,640 | $50.03 | $332.21K | 214,503 | Direct |
| 02 Sep, 2026 | Vikram Verghese | Chief Financial Officer | Disposed S | 5,876 | $50.60 | $297.33K | 248,683 | Direct |
| 03 Sep, 2026 | Vikram Verghese | Chief Financial Officer | Disposed S | 27,540 | $49.69 | $1.37Mn | 221,143 | Direct |
| 21 Aug, 2026 | John C.M. Farquhar | Chief Executive Officer | Disposed S | 27,230 | $50.00 | $1.36Mn | 360,814 | Direct |
| 18 Aug, 2026 | John C.M. Farquhar | Chief Executive Officer | Disposed S | 32,676 | $45.00 | $1.47Mn | 388,044 | Direct |
| 17 Aug, 2026 | Campbell Rogers | Chief Medical Officer | Acquired M | 9,219 | $19.00 | $175.16K | 95,678 | Direct |
| 17 Aug, 2026 | Campbell Rogers | Chief Medical Officer | Disposed S | 9,219 | $41.23 | $380.10K | 86,459 | Direct |
| 17 Aug, 2026 | Campbell Rogers | Chief Medical Officer | Disposed M | 9,219 | $0.00 | $0 | 82,972 | Direct |
| 14 Aug, 2026 | John C.M. Farquhar | Chief Executive Officer | Disposed S | 15,560 | $39.06 | $607.77K | 420,720 | Direct |
| 10 Aug, 2026 | John C.M. Farquhar | Chief Executive Officer | Disposed S | 22,562 | $28.31 | $638.73K | 436,280 | Direct |
| 06 Aug, 2026 | John C.M. Farquhar | Chief Executive Officer | Disposed F | 5,847 | $27.19 | $158.98K | 460,746 | Direct |
| 06 Aug, 2026 | Campbell Rogers | Chief Medical Officer | Disposed F | 1,635 | $27.19 | $44.46K | 87,096 | Direct |
| 07 Aug, 2026 | Campbell Rogers | Chief Medical Officer | Disposed F | 637 | $28.82 | $18.36K | 86,459 | Direct |