Robert W Musslewhite
CIK 1390194 · Chief Executive Officer · last filed 2026-06-24
Robert W Musslewhite is a Chief Executive Officer who has filed 114 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for CSGP, was dated Jun 24, 2026. Across all open-market trades the lifetime net is −$23.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.1M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$2.13M
4
114
-$23.41M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CSGP | Director | 26,539 | $29.82 | $791.3K | $0 | 7 | 2026-06-24 |
| CAH | Director | 2,116 | $233.55 | $494.2K | $0 | 2 | 2025-11-06 |
| DH | Chief Executive Officer | 1,201,638 | $0.70 | $841.1K | $0 | 12 | 2024-01-09 |
| ADVISORY BOARD CO (ABCO) Delisted | Chief Executive Officer | 525,800 | — | — | -$23.41M | 91 | 2017-04-20 |
Recent Filings
114 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-24 | CSGP | Grant (A) | +8,262 | $0 | EDGAR |
| 2025-11-06 | CAH | Grant (A) | +1,067 | $0 | EDGAR |
| 2025-09-11 | CSGP | Grant (A) | +3,121 | $0 | EDGAR |
| 2025-03-18 | CAH | Grant (A) | +1,049 | $0 | EDGAR |
| 2024-08-05 | CSGP | Grant (A) | +3,293 | $0 | EDGAR |
| 2024-01-09 | DH | Tax (F) | −14,207 | -$127.9K | EDGAR |
| 2023-11-07 | DH | Tax (F) | −12,656 | -$92.0K | EDGAR |
| 2023-11-01 | CSGP | Grant (A) | +3,532 | $0 | EDGAR |
| 2023-10-10 | DH | Tax (F) | −20,016 | -$144.1K | EDGAR |
| 2023-08-08 | DH | Tax (F) | −12,657 | -$143.2K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.