Ian T. Clark is EVP-COMMERCIAL at GENENTECH INC (DNA). They have made 49 open-market trades across 5 companies since 2007, most recently 2026-08-04.
CIK 0001336504
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.
1 open-market purchase totalling $54K since 2011, against 48 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| KITE | 5,324 | $957K |
| BMRN | 14,490 | $793K |
| GH | 2,975 | $472K |
| GDRX | 100,150 | $337K |
| OLMA | 41,840 | $275K |
| AGIO | 6,549 | $205K |
| KYTX | 21,727 | $123K |
| DNA | 668 | $7K |
| DNDN | 7,500 |
Shares reported on the most recent Form 4, priced at the 2026-08-05 close. 2 holdings could not be priced and are excluded from the total.
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 |
|---|---|---|---|---|---|---|---|---|
| GH | SELL | 2026-08-04 | 2026-08-05 | $158.92 | $2.3M | +1.1% | +1.1% | — |
| GH | SELL | 2026-05-20 | 2026-05-22 | $106.90 | $735K | +11.8% | +8.3% | +41.1% |
| OLMA | SELL | 2025-12-19 | 2025-12-23 | $29.73 | $15.7M | -7.2% | -2.1% | -48.3% |
| GH | SELL | 2025-12-05 | 2025-12-08 | $107.14 | $5.8M | -6.7% | +5.7% | -12.3% |
| GH | SELL | 2025-06-17 | 2025-06-20 | $48.38 | $646K | +3.4% | -5.9% | +21.2% |
| GH | SELL | 2024-11-12 | 2024-11-14 | $29.45 | $458K | +12.4% | +16.5% | +48.4% |
| GH | SELL | 2021-09-01 | 2021-09-03 | $130.00 | $140K | -2.9% | -19.0% | -26.6% |
| GH | SELL | 2021-06-29 | 2021-07-01 | $130.00 | $1.4M | -9.9% | -11.6% | -4.9% |
| GH | SELL | 2021-04-26 | 2021-04-28 | $159.92 | $172K | -25.7% | -24.3% | -33.1% |
| GH | SELL | 2021-03-25 | 2021-03-29 | $132.09 | $142K | +14.9% | +20.2% | -8.1% |
| GH | SELL | 2021-02-25 | 2021-03-01 | $154.00 | $83K | -5.9% | -0.9% | -22.7% |
| GH | SELL | 2021-01-25 | 2021-01-27 | $162.00 | $87K | +10.1% | -0.0% | +11.8% |
| GH | SELL | 2021-01-04 | 2021-01-06 | $129.23 | $695K | +22.7% | +24.7% | +24.3% |
| GH | SELL | 2020-12-28 | 2020-12-30 | $135.00 | $73K | +26.4% | +22.8% | +15.9% |
| GH | SELL | 2020-12-03 | 2020-12-07 | $120.00 | $323K | +1.4% | +3.8% | +2.4% |
| GH | SELL | 2020-11-25 | 2020-11-27 | $113.28 | $122K | +6.1% | +6.2% | +25.3% |
| GH | SELL | 2020-11-03 | 2020-11-05 | $105.28 | $566K | -5.4% | +10.3% | +40.7% |
| GH | SELL | 2020-10-26 | 2020-10-28 | $104.03 | $112K | +0.9% | +6.2% | +34.1% |
| GH | SELL | 2020-09-25 | 2020-10-05 | $107.85 | $406K | -7.9% | +2.2% | +14.5% |
| GH | SELL | 2020-09-08 | 2020-09-10 | $89.25 | $1.6M | +12.1% | +13.4% | +31.8% |
| GH | SELL · 10b5-1 | 2020-06-25 | 2020-06-29 | $81.27 | $44K | +7.0% | +5.6% | +36.8% |
| GH | SELL | 2020-06-03 | 2020-06-05 | $87.52 | $471K | -6.2% | +2.1% | +11.0% |
| GH | SELL | 2020-05-26 | 2020-05-26 | $98.50 | $53K | -7.5% | -7.9% | +3.3% |
| GH | SELL | 2020-05-04 | 2020-05-06 | $72.17 | $388K | +15.1% | +1.5% | +3.1% |
| GH | SELL · 10b5-1 | 2020-04-27 | 2020-04-29 | $77.50 | $42K | +19.0% | +13.6% | +3.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| — |
| SZYM | 3,000 | — |
| Total | $3.2M |