Geoffrey M. Parker is Director at ChemoCentryx, Inc. (CCXI). They have made 51 open-market trades across 7 companies since 2011, most recently 2026-06-12.
CIK 0001491874
45 open-market purchases totalling $12.5M since 2011, against 6 sales. Across 45 scored buys the stock is down 5.5% at ninety days, and 8.7 points behind the S&P over the same stretch.
45 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 31% | 62% | 56% |
| Avg Move | -9.6% | -3.2% | -5.5% |
| Alpha | -7.6% | -3.9% | -8.7% |
| Scored | 45 | 45 | 45 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ALLO | SELL | 2026-02-02 | 2026-02-04 | $1.76 | $42K | +20.0% | +27.8% | +20.8% |
| PRGO | BUY | 2025-11-12 | 2025-11-14 | $14.18 | $106K | -2.7% | -6.9% | +4.3% |
| ALLO | SELL | 2025-10-21 | 2025-10-23 | $1.26 | $46K | -8.3% | +11.6% | +32.2% |
| PRGO | BUY | 2025-08-18 | 2025-08-20 | $22.97 | $201K | +0.2% | -9.3% | -42.9% |
| PRGO | BUY | 2025-05-12 | 2025-05-14 | $27.10 | $95K | +4.4% | +1.8% | -11.8% |
| ALLO | SELL | 2025-02-03 | 2025-02-05 | $1.73 | $8K | +72.1% | +32.1% | -22.4% |
| ALLO | BUY | 2024-01-30 | 2024-03-06 | $3.60 | $684 | -26.4% | -30.5% | -59.1% |
| BTTX | BUY | 2023-07-27 | 2023-07-31 | $0.73 | $1.0M | -7.8% | -19.7% | -79.8% |
| PRGO | BUY | 2023-06-13 | 2023-06-14 | $33.06 | $331K | -0.9% | +1.2% | +0.9% |
| BTTX | BUY | 2023-04-10 | 2023-04-12 | $0.83 | $503K | -12.6% | -45.3% | -27.3% |
| PRGO | BUY | 2023-03-06 | 2023-03-07 | $38.05 | $190K | -7.9% | -2.8% | -12.5% |
| BTTX | BUY | 2022-06-13 | 2022-06-14 | $1.45 | $36K | +27.7% | +17.7% | +37.6% |
| BTTX | BUY | 2022-03-29 | 2022-03-31 | $2.15 | $32K | -26.0% | -1.5% | -19.1% |
| PRGO | BUY | 2021-12-16 | 2021-12-17 | $36.85 | $184K | +4.5% | +5.7% | +2.9% |
| BTTX | BUY | 2021-12-14 | 2021-12-16 | $4.94 | $198K | +6.9% | -17.2% | -44.2% |
| PRGO | BUY | 2021-03-17 | 2021-03-18 | $41.29 | $103K | -1.2% | +0.0% | +14.8% |
| CCXI | SELL | 2021-03-04 | 2021-03-08 | $56.50 | $3.5M | -4.8% | -14.6% | -80.9% |
| TCDA | BUY | 2020-12-10 | 2020-12-10 | $6.78 | $102K | +2.9% | +4.7% | -33.6% |
| TCDA | BUY | 2020-05-11 | 2020-05-12 | $30.06 | $2.0M | -10.7% | -16.4% | -55.0% |
| CCXI | SELL | 2020-03-23 | 2020-03-25 | $36.68 | $2.2M | +11.8% | +31.1% | +48.0% |
| TCDA | BUY | 2020-03-10 | 2020-03-11 | $29.46 | $147K | -21.8% | +1.7% | -2.7% |
| TCDA | BUY | 2019-11-18 | 2019-11-19 | $34.29 | $1.3M | +5.9% | +2.5% | -5.3% |
| TCDA | BUY | 2019-08-13 | 2019-08-14 | $33.17 | $396K | +3.0% | +2.0% | +20.4% |
| TCDA | BUY | 2019-08-12 | 2019-08-14 | $32.33 | $970K | +3.0% | +2.0% | +20.4% |
| TCDA | BUY | 2019-08-12 | 2019-08-14 | $31.77 | $574K | +3.0% | +2.0% | +20.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| TCDA |
| 63,617 |
| $7K |
| GXDX | 4,167 | — |
| Total | $4.5M |
Shares reported on the most recent Form 4, priced at the 2026-06-16 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.