William E. Oberndorf is 10% at CABOT CORP (CBT). They have made 37 open-market trades across 7 companies since 2007, most recently 2017-06-19.
CIK 0001218663
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.
35 open-market purchases totalling $145.2M since 2007, against 2 sales. Across 29 scored buys the stock is down 0.4% at ninety days, and 0.6 points behind the S&P over the same stretch.
29 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 79% | 79% |
| Avg Move | -7.8% | -0.4% | -0.4% |
| Alpha | -1.9% | -0.6% | -0.6% |
| Scored | 29 | 29 | 29 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| APPF | SELL | 2017-06-19 | 2017-06-21 | $31.25 | $6.9M | -3.1% | +8.8% | +38.7% |
| APPF | BUY | 2015-10-06 | 2015-10-08 | $16.50 | $11.0M | -11.6% | -3.9% | -4.0% |
| APPF | BUY | 2015-07-09 | 2015-07-13 | $13.99 | $67K | -11.6% | -3.9% | -3.9% |
| APPF | BUY | 2015-07-07 | 2015-07-09 | $13.83 | $111K | -11.6% | -3.9% | -3.9% |
| APPF | BUY | 2015-07-02 | 2015-07-07 | $13.95 | $127K | -11.6% | -3.9% | -3.9% |
| CCI | SELL | 2011-04-28 | 2011-05-02 | $43.23 | $19.5M | -3.3% | -0.3% | -0.3% |
| REN | BUY | 2009-10-05 | 2009-10-07 | $10.34 | $970K | -24.4% | -2.3% | -2.3% |
| CPN | BUY | 2008-10-28 | 2008-10-30 | $10.73 | $4.9M | -7.4% | +0.4% | +0.4% |
| CPN | BUY | 2008-10-24 | 2008-10-28 | $10.64 | $8.4M | -7.4% | +0.4% | +0.4% |
| CPN | BUY | 2008-10-20 | 2008-10-22 | $12.01 | $11.3M | -7.4% | +0.4% | +0.4% |
| CPN | BUY | 2008-10-17 | 2008-10-20 | $10.06 | $9.4M | -7.4% | +0.4% | +0.4% |
| LAMR | BUY | 2008-07-01 | 2008-07-03 | $34.72 | $7.1M | -3.3% | +0.4% | +0.4% |
| LAMR | BUY | 2008-06-25 | 2008-06-25 | $34.93 | $5.3M | -3.3% | +0.4% | +0.4% |
| LAMR | BUY | 2008-05-28 | 2008-05-30 | $39.36 | $2.6M | -3.3% | +0.4% | +0.4% |
| LAMR | BUY | 2008-04-11 | 2008-04-15 | $34.72 | $14.5M | -3.3% | +0.4% | +0.4% |
| LAMR | BUY | 2008-03-19 | 2008-03-20 | $35.16 | $5.8M | -3.3% | +0.4% | +0.4% |
| LAMR | BUY | 2008-03-19 | 2008-03-20 | $34.85 | $18.8M | -3.3% | +0.4% | +0.4% |
| CPN | BUY | 2008-02-07 | 2008-02-11 | $16.47 | $19.0M | -7.4% | +0.4% | +0.4% |
| ADVS | BUY | 2008-01-23 | 2008-01-24 | $39.90 | $810K | N/A | N/A | N/A |
| ADVS | BUY | 2008-01-23 | 2008-01-24 | $39.36 | $500K | N/A | N/A | N/A |
| CBT | BUY | 2008-01-11 | 2008-01-14 | $31.29 | $391K | -8.2% | +0.2% | +0.2% |
| CBT | BUY | 2008-01-10 | 2008-01-14 | $30.39 | $723K | -8.2% | +0.2% | +0.2% |
| CBT | BUY | 2008-01-08 | 2008-01-10 | $31.05 | $264K | -8.2% | +0.2% | +0.2% |
| CBT | BUY | 2008-01-08 | 2008-01-10 | $30.58 | $783K | -8.2% | +0.2% | +0.2% |
| CBT | BUY | 2007-12-27 | 2007-12-28 | $33.51 | $489K | -8.2% | +0.2% | +0.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| ADVS |
| 7,789,500 |
| — |
| Total | $8.2B |
Shares reported on the most recent Form 4, priced at the 2017-06-21 close. 2 holdings could not be priced and are excluded from the total.