ROBERT H NIEHAUS
CIK 1241677 · Chairman, GCP · last filed 2026-05-12
"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.
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Disclosed Exposure
$46.57M
Companies
11
Total Filings
106
Lifetime Open-Market Net
-$89.29M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 3 of 11
106 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-07-05 | ZETA | Grant (A) | +17,564 | $0 | EDGAR |
| 2023-07-03 | IRDM | Grant (A) | +248 | $0 | EDGAR |
| 2023-05-02 | IRDM | Mixed | — | -$3.21M | EDGAR |
| 2023-04-03 | IRDM | Grant (A) | +250 | $0 | EDGAR |
| 2023-02-24 | IRDM | Sell (S) | −70,000 | -$4.40M | EDGAR |
| 2023-02-17 | ZETA | Sell (S) | −980,735 | -$10.02M | EDGAR |
| 2023-01-25 | ZETA | Sell (S) | −625,177 | -$5.67M | EDGAR |
| 2023-01-09 | IRDM | Grant (A) | +4,841 | $57.5K | EDGAR |
| 2022-08-08 | ZETA | Sell (S) | −1,400,000 | -$9.84M | EDGAR |
| 2022-08-04 | IRDM | Sell (S) | −30,000 | -$1.36M | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.