InsiderCIK 1785033
Robert A. Nerbonne: Insider Trades
Every open-market purchase and sale Robert A. Nerbonne reported on Form 4 since Aug 13, 2026, with how the stock moved after each purchase.
1Purchases
$491KBought
0Sales
$0Sold
Track record of purchases
| After | Purchases measured | Average change | Median | Vs. S&P 500 | Rose |
|---|---|---|---|---|---|
| 1 week | 1 | +3.8% | +3.8% | +5.2% | 1 of 1 |
| 1 month | 1 | −4.6% | −4.6% | −3.0% | 0 of 1 |
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 |
|---|---|---|---|---|---|
| Aug 19 | MFP | Director (ind.) | ▲ BUY | $491K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Names come from the filings. Different people can share a name, so we group trades by the SEC's reporting-owner number (CIK) instead.