Robert H. Niehaus, a director at Iridium Communications Inc. ($IRDM), made one open market purchase of company shares in the last year, totaling $525,000. His most recent buy occurred on October 28, 2025. This places him 791st among nearly 5,000 insiders by purchase value, below the average of 1.5 million dollars across 3.3 transactions. Niehaus reported no open market sales in the period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 31, 2026 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Director | A | Common Stock | 743 | $0.00 | 316,532.5000 | 104,918,000 | 0.24% | 0.00% |
| Jan. 6, 2026 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Director | A | Common Stock | 17315 | $0.00 | 315,789.6000 | 104,918,000 | 5.80% | 0.02% |
| Dec. 31, 2025 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Director | A | Common Stock | 1112 | $0.00 | 298,474.6000 | 104,736,000 | 0.37% | 0.00% |
| Oct. 28, 2025 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Director | P | Common Stock | 30000 | $17.49 | 297,362.7000 | 104,736,000 | 11.22% | 0.03% |
| Sept. 30, 2025 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Director | A | Common Stock | 1097 | $0.00 | 267,362.7000 | 110,357,000 | 0.41% | 0.00% |
| July 1, 2025 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Not found | A | Class A Common Stock | 9907 | $0.00 | 318,465.0000 | 237,722,456 | 3.21% | 0.00% |
| June 30, 2025 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | A | Common Stock | 590 | $0.00 | 266,265.3000 | 110,357,000 | 0.22% | 0.00% |
| March 31, 2025 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | A | Common Stock | 648 | $0.00 | 265,675.3000 | 110,357,000 | 0.24% | 0.00% |
| Jan. 6, 2025 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | A | Common Stock | 6633 | $0.00 | 262,043.1000 | 110,357,000 | 2.60% | 0.01% |
| Jan. 6, 2025 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | A | Common Stock | 2984 | $30.15 | 265,027.1000 | 110,357,000 | 1.14% | 0.00% |
| Dec. 31, 2024 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | A | Common Stock | 586 | $0.00 | 255,410.1000 | 122,776,000 | 0.23% | 0.00% |
| Nov. 18, 2024 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Not found | P | Common stock | 30000 | $18.62 | 308,558.0000 | 0 | 10.77% | 0.00% |
| Aug. 8, 2024 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Not found | J | Common stock | 217625 | $0.00 | 278,558.0000 | 0 | 357.15% | 0.00% |
| Oct. 23, 2024 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | S | Common Stock | 38355 | $29.39 | 254,824.3000 | 122,776,000 | 13.08% | 0.03% |
| Oct. 23, 2024 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | M | Common Stock | 38355 | $9.18 | 293,179.3000 | 122,776,000 | 15.05% | 0.03% |
| Oct. 23, 2024 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | M | Stock Option (Right to Buy) | 38355 | $3.65 | 0.0000 | 122,776,000 | 100.00% | 0.03% |
| Sept. 30, 2024 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | A | Common Stock | 556 | $0.00 | 254,824.3000 | 122,776,000 | 0.22% | 0.00% |
| July 1, 2024 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Not found | A | Class A Common Stock | 8241 | $0.00 | 60,933.0000 | 0 | 15.64% | 0.00% |
| June 28, 2024 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | A | Common Stock | 632 | $0.00 | 254,268.6000 | 122,776,000 | 0.25% | 0.00% |
| March 29, 2024 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Not found | A | Common Stock | 596 | $0.00 | 253,636.3000 | 122,776,000 | 0.24% | 0.00% |
| Jan. 4, 2024 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Director | A | Common Stock | 5036 | $0.00 | 253,040.5000 | 122,776,000 | 2.03% | 0.00% |
| Dec. 29, 2023 | Iridium Communications Inc. | $IRDM | NIEHAUS ROBERT H | Director | A | Common Stock | 377 | $0.00 | 248,004.5000 | 125,902,000 | 0.15% | 0.00% |
| July 1, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Not found | A | Common Stock | 17564 | $0.00 | 15,299,583.0000 | 0 | 0.11% | 0.00% |
| March 8, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 5837 | $11.04 | 15,282,019.0000 | 0 | 0.04% | 0.00% |
| March 7, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 7911 | $11.00 | 15,287,856.0000 | 0 | 0.05% | 0.00% |
| March 6, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 29283 | $11.02 | 15,295,767.0000 | 0 | 0.19% | 0.00% |
| March 3, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 76087 | $11.01 | 15,325,050.0000 | 0 | 0.49% | 0.00% |
| Feb. 24, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 170985 | $10.31 | 15,782,019.0000 | 0 | 1.07% | 0.00% |
| Feb. 27, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 380882 | $11.11 | 15,401,137.0000 | 0 | 2.41% | 0.00% |
| Feb. 16, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 10200 | $10.00 | 15,953,004.0000 | 0 | 0.06% | 0.00% |
| Feb. 15, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 129905 | $10.23 | 15,963,204.0000 | 0 | 0.81% | 0.00% |
| Feb. 3, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 48641 | $10.22 | 16,093,109.0000 | 0 | 0.30% | 0.00% |
| Feb. 2, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 115269 | $10.07 | 16,141,750.0000 | 0 | 0.71% | 0.00% |
| Jan. 24, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 80099 | $9.07 | 16,257,019.0000 | 0 | 0.49% | 0.00% |
| Jan. 23, 2023 | Zeta Global Holdings Corp. | $ZETA | NIEHAUS ROBERT H | Director | S | Common Stock | 9212 | $9.00 | 16,337,118.0000 | 0 | 0.06% | 0.00% |