John C.m. Farquhar is CEO at Heartflow, Inc. (HTFL). They have made 2 open-market trades across 1 company since 2026, most recently 2026-10-12.
CIK 0001900415
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 2 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| HTFL | 283,014 | $13.6M |
Shares reported on the most recent Form 4, priced at the 2026-10-14 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| HTFL | SELL · 10b5-1 | 2026-10-12 | 2026-10-14 | $49.57 | $1.9M | — | — | — |
| HTFL | SELL · 10b5-1 | 2026-09-10 | 2026-09-14 | $46.78 | $1.8M | -1.4% | +0.4% | — |
| HTFL | SELL · 10b5-1 | 2026-08-21 | 2026-08-25 | $50.00 | $1.4M | -1.9% | -2.5% | — |
| HTFL | SELL · 10b5-1 | 2026-08-18 | 2026-08-20 | $45.00 | $1.5M | +7.6% | +7.5% | — |
| HTFL | SELL · 10b5-1 | 2026-08-14 | 2026-08-18 | $39.06 | $608K | +3.3% | +7.3% | — |
| HTFL | SELL · 10b5-1 | 2026-08-10 | 2026-08-12 | $28.31 | $639K | +66.9% | +65.9% | — |
| HTFL | SELL · 10b5-1 | 2026-07-10 | 2026-07-13 | $27.75 | $626K | -6.4% | +13.6% | +92.3% |
| HTFL | SELL · 10b5-1 | 2026-06-24 | 2026-06-26 | $35.00 | $1.4M | -22.6% | -29.2% | +35.7% |
| HTFL | SELL · 10b5-1 | 2026-06-10 | 2026-06-12 | $28.50 | $643K | +4.4% | -22.0% | +35.6% |
| HTFL | SELL · 10b5-1 | 2026-05-11 | 2026-05-13 | $29.12 | $657K | -8.7% | +6.6% | -5.1% |
| HTFL | SELL · 10b5-1 | 2026-04-10 | 2026-04-14 | $26.72 | $603K | +4.2% | +10.3% | -10.5% |
| HTFL | SELL · 10b5-1 | 2026-03-18 | 2026-03-20 | $25.00 | $243K | -7.7% | +18.2% | +26.7% |
| HTFL | SELL | 2026-03-10 | 2026-03-12 | $22.66 | $291K | +34.5% | +31.9% | +41.6% |
| HTFL | SELL | 2026-02-10 | 2026-02-10 | $27.46 | $620K | -18.0% | -23.0% | +8.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.