Thomas L. Monahan is CEO at CORPORATE EXECUTIVE BOARD CO (CEB). They have made 8 open-market trades across 4 companies since 2006, most recently 2026-05-12.
CIK 0001208408
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 $920K since 2012, against 3 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| HSII | BUY | 2025-03-06 | 2025-03-10 | $45.55 | $228K | -5.1% | -8.5% | -1.8% |
| HSII | BUY | 2024-11-08 | 2024-11-12 | $47.39 | $237K | -5.0% | -7.1% | -7.4% |
| HSII | BUY | 2024-07-31 | 2024-08-01 | $40.38 | $303K | -5.4% | -3.4% | +1.2% |
| TRU | BUY | 2023-11-17 | 2023-11-20 | $57.46 | $103K | +1.7% | +11.3% | +25.6% |
| CEB | SELL | 2015-02-12 | 2015-02-13 | $78.12 | $2.2M | -8.3% | -1.6% | -1.6% |
| CEB | SELL | 2014-03-05 | 2014-03-06 | $77.46 | $66K | -8.3% | -1.6% | -1.6% |
| EXBD | BUY | 2012-11-20 | 2012-11-20 | $41.14 | $49K | N/A | N/A | N/A |
| EXBD | SELL | 2006-03-17 | 2006-03-20 | $94.37 | $3.6M | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.