Paul E. Szurek is CEO & President at CoreSite Realty Corp (COR). They have made 16 open-market trades across 2 companies since 2010, most recently 2021-12-28.
CIK 0001498577
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.
5 open-market purchases totalling $758K since 2010, against 11 sales. Across 5 scored buys the stock is down 5.1% at ninety days, and 5.8 points behind the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 20% | 40% | 40% |
| Avg Move | -2.6% | -0.1% | -5.1% |
| Alpha | -0.7% | +0.9% | -5.8% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| COR | SELL | 2021-03-15 | 2021-03-17 | $117.74 | $1.8M | +4.7% | +5.3% | +4.7% |
| COR | SELL | 2021-03-04 | 2021-03-05 | $108.68 | $3.2M | +8.0% | +10.8% | +10.6% |
| COR | SELL | 2020-03-16 | 2020-03-17 | $95.12 | $649K | -3.7% | +1.6% | +13.3% |
| COR | SELL | 2020-03-09 | 2020-03-11 | $103.67 | $541K | -8.1% | +6.2% | +24.2% |
| COR | SELL | 2020-03-05 | 2020-03-06 | $111.10 | $800K | +6.6% | +8.3% | +24.8% |
| COR | SELL | 2019-09-10 | 2019-09-12 | $110.26 | $792K | -2.9% | -4.2% | +1.7% |
| COR | SELL | 2019-03-15 | 2019-03-19 | $103.80 | $540K | -1.7% | -10.4% | +5.5% |
| COR | SELL | 2019-03-07 | 2019-03-11 | $101.00 | $2.1M | +2.9% | -5.2% | +8.5% |
| COR | SELL | 2018-09-10 | 2018-09-12 | $114.15 | $819K | +4.5% | +3.2% | -3.8% |
| COR | SELL | 2018-03-12 | 2018-03-14 | $101.91 | $532K | -14.2% | -12.3% | -11.1% |
| COR | SELL | 2017-09-11 | 2017-09-13 | $117.53 | $885K | -1.6% | -3.5% | +6.7% |
| COR | BUY | 2016-12-05 | 2016-12-06 | $68.92 | $482K | -1.0% | +7.0% | +15.1% |
| COR | BUY | 2016-08-16 | 2016-08-18 | $81.20 | $81K | -2.8% | -6.0% | -10.9% |
| FCPT | BUY | 2016-05-25 | 2016-05-27 | $19.45 | $23K | +3.7% | +0.4% | +7.3% |
| FCPT | BUY | 2015-11-09 | 2015-11-10 | $20.25 | $91K | -4.1% | -1.4% | -36.7% |
| COR | BUY | 2010-09-28 | 2010-10-12 | $16.00 | $80K | -9.0% | -0.4% | -0.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.