Mark D. McLaughlin is Director at Palo Alto Networks Inc (PANW). They have made 95 open-market trades across 5 companies since 2006, most recently 2026-09-30.
CIK 0001309507
5 open-market purchases totalling $2.9M since 2015, against 90 sales. Across 5 scored buys the stock is up 8.7% at ninety days, and 2.3 points ahead of the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| VRSN | 246,813 | $74.6M |
| PANW | 127,179 | $43.5M |
| SNOW | 14,333 | $4.4M |
| QCOM | 13,755 | $2.4M |
| RBRK | 20,028 | $2.3M |
| OPWR | 70,921 | $730K |
| Total | $127.9M |
Shares reported on the most recent Form 4, priced at the 2026-09-30 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 40% | 60% | 60% |
| Avg Move | -1.8% | +0.9% | +8.7% |
| Alpha | -1.5% | -2.4% | +2.3% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RBRK | BUY | 2026-03-30 | 2026-04-01 | $47.21 | $502K | -2.1% | +12.2% | +63.5% |
| SNOW | BUY | 2024-03-06 | 2024-03-07 | $165.45 | $1.0M | -6.8% | -8.5% | -20.7% |
| SNOW | BUY | 2023-05-31 | 2023-06-02 | $163.80 | $600K | +3.0% | +0.7% | -10.8% |
| PANW | SELL | 2022-10-25 | 2022-10-25 | $166.00 | $224K | -13.3% | +5.4% | -8.9% |
| PANW | SELL | 2022-03-22 | 2022-03-22 | $598.00 | $5.7M | +3.8% | +0.6% | -15.2% |
| PANW | SELL | 2021-12-07 | 2021-12-07 | $518.01 | $1.0M | +1.6% | +2.1% | +2.2% |
| PANW | SELL | 2021-11-22 | 2021-11-22 | $526.91 | $8.4M | -1.7% | +4.7% | -10.2% |
| PANW | SELL | 2021-11-03 | 2021-11-03 | $507.14 | $1.4M | +3.2% | +3.8% | +2.2% |
| PANW | SELL | 2021-10-04 | 2021-10-04 | $479.68 | $1.3M | +6.5% | +5.6% | +15.2% |
| PANW | SELL | 2021-09-08 | 2021-09-09 | $460.04 | $1.4M | -0.4% | +5.2% | +11.7% |
| PANW | SELL | 2021-08-03 | 2021-08-03 | $400.54 | $1.2M | -6.4% | +15.8% | +27.3% |
| PANW | SELL | 2021-07-02 | 2021-07-02 | $373.60 | $1.1M | +2.7% | +6.0% | +26.8% |
| PANW | SELL | 2021-06-04 | 2021-06-07 | $353.21 | $897K | +3.7% | +7.8% | +28.9% |
| PANW | SELL | 2021-05-03 | 2021-05-04 | $354.37 | $797K | -3.1% | +1.0% | +15.2% |
| PANW | SELL | 2021-04-01 | 2021-04-02 | $327.84 | $492K | +8.4% | +4.8% | +11.3% |
| PANW | SELL | 2021-03-08 | 2021-03-09 | $339.48 | $896K | -9.2% | -1.7% | +2.1% |
| PANW | SELL | 2021-02-01 | 2021-02-02 | $361.84 | $25.6M | +2.0% | -13.4% | -9.9% |
| PANW | SELL | 2021-01-04 | 2021-01-06 | $350.14 | $26.1M | +4.1% | +8.6% | -3.6% |
| PANW | SELL | 2020-12-01 | 2020-12-02 | $293.96 | $22.6M | +7.0% | +19.7% | +20.8% |
| PANW | SELL | 2020-11-27 | 2020-11-30 | $294.97 | $23.6M | +3.7% | +19.8% | +23.7% |
| PANW | SELL | 2020-08-05 | 2020-08-06 | $259.16 | $13.0M | +0.2% | -11.7% | -11.3% |
| PANW | SELL | 2020-07-09 | 2020-07-09 | $249.00 | $237K | +0.3% | +3.9% | +1.0% |
| PANW | SELL | 2020-02-11 | 2020-02-13 | $249.03 | $9.5M | -23.2% | -44.5% | -12.7% |
| PANW | SELL | 2019-12-26 | 2019-12-26 | $234.04 | $7.0M | +1.6% | +1.3% | -29.3% |
| PANW | SELL | 2019-12-09 | 2019-12-10 | $226.14 | $3.4M | +2.3% | +6.8% | -29.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.