Michael Huffaker: Insider Trades
Every open-market purchase and sale Michael Huffaker reported on Form 4 since Aug 13, 2026, with how the stock moved after each purchase.
Track record of purchases
Of 3 purchases we can measure after 1 month, 2 beat the S&P 500. On average the stock did 12.5 percentage points better than the index.
| After | Purchases measured | Average change | Median | Vs. S&P 500 | Rose |
|---|---|---|---|---|---|
| 1 week | 6 | −1.4% | +1.5% | −1.2% | 3 of 6 |
| 1 month | 3 | +12.3% | +19.0% | +12.5% | 2 of 3 |
Change in the stock price from the price paid to the closest weekly price about 1 week, 1 month, 3 months, 6 months and 1 year later, from SEC fails-to-deliver data. "Vs. S&P 500" subtracts the change in the SPY ETF over the same weeks. Dividends are not included, and purchases with a possible stock split in between are skipped. Past results do not predict future ones. How we measure this
All reported trades
| Filed | Ticker | Role | Type | Value | 3 mo. after |
|---|---|---|---|---|---|
| Sep 10 | PRTS | COO | ▲ BUY | $133K | |
| Sep 9 | PRTS | COO | ▲ BUY | $353K | |
| Sep 9 | PRTS | COO | ▲ BUY | $203K | |
| Sep 9 | PRTS | COO | ▲ BUY | $193K | |
| Aug 31 | PRTS | COO | ▲ BUY | $54K | |
| Aug 31 | PRTS | COO | ▲ BUY | $32K |
Names come from the filings. Different people can share a name, so we group trades by the SEC's reporting-owner number (CIK) instead.