ROBERT H NIEHAUS
CIK 1241677 · Chairman, GCP · last filed 2026-05-12
ROBERT H NIEHAUS is a Chairman, GCP who has filed 106 SEC Form 4 insider transactions across 11 companies since 2007. The most recent filing, for ZETA, was dated May 12, 2026. Across all open-market trades the lifetime net is −$89.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $46.6M 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.
$46.57M
11
106
-$89.29M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ZETA | Director | 664,575 | $20.21 | $13.43M | -$24.97M | 10 | 2026-05-12 |
| IRDM | Director | 316,532 | $47.32 | $14.98M | -$14.64M | 40 | 2026-04-02 |
| HEARTLAND PAYMENT SYSTEMS INC (HPY) Delisted | Director | 112,722 | — | — | -$4.75M | 23 | 2016-03-11 |
| GREENHILL & CO INC (GHL) Delisted | Chairman, GCP | 125,631 | $14.99 | $1.88M | -$47.09M | 11 | 2010-02-04 |
| Iridium Communications Inc. (IRDMW) Delisted | Director | — | — | — | $0 | 1 | 2009-09-30 |
| Iridium Communications Inc. (GHQ.WS) Delisted | Senior Vice President | 398,276 | — | — | $1.94M | 5 | 2009-09-02 |
| EXCO RESOURCES INC (XCO) Delisted | Director | 234,329 | — | — | $0 | 9 | 2009-04-03 |
| Crusader Energy Group Inc. (KRU) Delisted | Director | 63,298 | — | — | $210.1K | 2 | 2008-12-08 |
| Iridium Communications Inc. (GHQ.U) Delisted | Senior Vice President | 200,000 | — | — | $0 | 1 | 2008-03-13 |
| CCI | Director | 197,054 | $92.16 | $18.16M | $0 | 1 | 2007-03-14 |
| AMERICAN ITALIAN PASTA CO (ECR) Delisted | Director | 19,880 | — | — | $0 | 1 | 2007-02-20 |
Recent Filings
106 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-12 | ZETA | Mixed | +346,110 | $0 | EDGAR |
| 2026-04-02 | IRDM | Grant (A) | +742 | $0 | EDGAR |
| 2026-01-07 | IRDM | Grant (A) | +18,426 | $0 | EDGAR |
| 2025-10-29 | IRDM | Buy (P) | +30,000 | $524.7K | EDGAR |
| 2025-10-02 | IRDM | Grant (A) | +1,097 | $0 | EDGAR |
| 2025-07-03 | ZETA | Grant (A) | +9,907 | $0 | EDGAR |
| 2025-07-02 | IRDM | Grant (A) | +590 | $0 | EDGAR |
| 2025-04-02 | IRDM | Grant (A) | +648 | $0 | EDGAR |
| 2025-01-08 | IRDM | Grant (A) | +9,617 | $90.0K | EDGAR |
| 2025-01-03 | IRDM | Grant (A) | +585 | $0 | EDGAR |