John E. Bishop is Senior VP & Pharmaceutical Scie at MOMENTA PHARMACEUTICALS INC (MNTA). They have made 6 open-market trades across 2 companies since 2006, most recently 2026-08-21.
CIK 0001308911
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MNTA | 157,640 | $8.3M |
| ARDX | 317,095 | $1.0M |
| FMTX | 47,950 | $959K |
| Total | $10.3M |
Shares reported on the most recent Form 4, priced at the 2026-08-25 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 |
|---|---|---|---|---|---|---|---|---|
| ARDX | SELL | 2026-08-21 | 2026-08-25 | $3.86 | $76K | -1.4% | -10.2% | — |
| ARDX | SELL | 2026-05-21 | 2026-05-22 | $6.27 | $14K | -12.4% | +3.1% | -36.9% |
| ARDX | SELL | 2026-02-20 | 2026-02-23 | $5.85 | $19K | +1.0% | -9.2% | +0.8% |
| MNTA | SELL · 10b5-1 | 2016-05-19 | 2016-05-23 | $10.20 | $8K | +11.7% | -0.1% | +15.9% |
| MNTA | SELL · 10b5-1 | 2016-04-19 | 2016-04-19 | $9.57 | $27K | -1.5% | +4.4% | +19.2% |
| MNTA | SELL · 10b5-1 | 2016-02-22 | 2016-02-24 | $9.70 | $3K | -5.8% | -8.1% | +19.4% |
| MNTA | SELL · 10b5-1 | 2016-02-19 | 2016-02-22 | $9.66 | $28K | -15.5% | -15.8% | +3.0% |
| MNTA | SELL · 10b5-1 | 2016-02-18 | 2016-02-19 | $10.28 | $4K | -5.7% | -9.0% | +4.4% |
| MNTA | SELL · 10b5-1 | 2015-11-20 | 2015-11-23 | $17.77 | $10K | -10.8% | -2.5% | -29.3% |
| MNTA | SELL · 10b5-1 | 2015-11-18 | 2015-11-20 | $18.12 | $12K | -10.8% | -2.5% | -32.0% |
| MNTA | SELL · 10b5-1 | 2015-11-17 | 2015-11-18 | $17.65 | $6K | -10.8% | -2.5% | -21.8% |
| MNTA | SELL · 10b5-1 | 2015-08-20 | 2015-08-24 | $21.88 | $12K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-08-19 | 2015-08-20 | $22.00 | $13K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-08-17 | 2015-08-19 | $21.79 | $70K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-06-19 | 2015-06-22 | $25.50 | $542K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-06-17 | 2015-06-19 | $23.58 | $856K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-05-26 | 2015-05-27 | $19.80 | $5K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-05-20 | 2015-05-21 | $19.68 | $4K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-05-19 | 2015-05-20 | $19.63 | $12K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-05-11 | 2015-05-13 | $20.70 | $696K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-05-06 | 2015-05-08 | $19.05 | $9K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-02-25 | 2015-02-26 | $13.20 | $845 | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-02-23 | 2015-02-25 | $13.32 | $5K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-02-19 | 2015-02-23 | $12.97 | $23K | -10.8% | -2.5% | -2.5% |
| MNTA | SELL · 10b5-1 | 2015-02-18 | 2015-02-20 | $11.91 | $3K | -10.8% | -2.5% | -2.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.