Greiner Christopher E has filed 30 insider transactions across 1 company since March 2023.
Most recent transaction: a gift of 515627 shares of Zeta Global Holdings Corp. ($ZETA) on December 05, 2025.
Activity breakdown: 1 open-market purchase and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 5, 2025 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | G | Class A Common Stock | 515627 | $0.00 | 776,057.0000 | 240,587,277 | 39.92% | 0.21% |
| May 9, 2025 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | G | Class A Common Stock | 1061853 | $0.00 | 1,291,684.0000 | 237,722,456 | 45.12% | 0.45% |
| Feb. 12, 2025 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-Based Restricted Stock Units | 537500 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 12, 2025 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Class A Common Stock | 1021819 | $0.00 | 2,020,876.0000 | 0 | 102.28% | 0.00% |
| Dec. 11, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | G | Class A Common Stock | 999057 | $0.00 | 1,331,718.0000 | 0 | 42.86% | 0.00% |
| Nov. 18, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | P | Class A Common Stock | 7975 | $18.80 | 2,330,010.0000 | 0 | 0.34% | 0.00% |
| Oct. 9, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-Based Restricted Stock Units | 0 | $0.00 | 0.0000 | 0 | 0.00% | 0.00% |
| Oct. 9, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-Based Restricted Stock Units | 129250 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Oct. 9, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-Based Restricted Stock Units | 58730 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Oct. 9, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Class A Common Stock | 870873 | $0.00 | 2,322,035.0000 | 0 | 60.01% | 0.00% |
| Aug. 9, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | G | Class A Common Stock | 116789 | $0.00 | 1,451,162.0000 | 0 | 7.45% | 0.00% |
| July 3, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | F | Class A Common Stock | 53109 | $17.40 | 1,567,952.0000 | 0 | 3.28% | 0.00% |
| July 3, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-Based Restricted Stock Units | 137800 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| July 3, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-Based Restricted Stock Units | 145750 | $0.00 | 129,250.0000 | 0 | 53.00% | 0.00% |
| July 3, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-Based Restricted Stock Units | 78770 | $0.00 | 58,730.0000 | 0 | 57.29% | 0.00% |
| July 3, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Class A Common Stock | 404891 | $0.00 | 1,621,060.0000 | 0 | 33.29% | 0.00% |
| May 22, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | G | Class A Common Stock | 411655 | $0.00 | 1,214,689.0000 | 0 | 25.31% | 0.00% |
| April 5, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | F | Class A Common Stock | 682 | $12.23 | 1,626,344.0000 | 0 | 0.04% | 0.00% |
| April 5, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-based restricted Stock units | 5200 | $0.00 | 137,800.0000 | 0 | 3.64% | 0.00% |
| April 3, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | A | Performance-based restricted Stock units | 537500 | $0.00 | 537,500.0000 | 0 | 9999.99% | 0.00% |
| April 5, 2024 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Class A Common Stock | 5200 | $0.00 | 1,627,026.0000 | 0 | 0.32% | 0.00% |
| Nov. 22, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | G | Class A Common Stock | 506868 | $0.00 | 1,618,993.0000 | 0 | 23.84% | 0.00% |
| Nov. 15, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | A | Class A Common Stock | 116264 | $0.00 | 2,125,861.0000 | 0 | 5.79% | 0.00% |
| Aug. 31, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | G | Class A Common Stock | 503067 | $0.00 | 2,009,597.0000 | 0 | 20.02% | 0.00% |
| April 21, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Class A Common Stock | 57000 | $0.00 | 2,520,141.0000 | 0 | 2.31% | 0.00% |
| April 21, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | F | Class A Common Stock | 7477 | $10.38 | 2,512,664.0000 | 0 | 0.30% | 0.00% |
| April 21, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | A | Class A Common Stock | 300000 | $0.00 | 2,463,141.0000 | 0 | 13.87% | 0.00% |
| April 21, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | M | Performance-based restricted Stock units | 57000 | $0.00 | 143,000.0000 | 0 | 28.50% | 0.00% |
| April 21, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | A | Performance-based restricted Stock units | 137500 | $0.00 | 137,500.0000 | 0 | 9999.99% | 0.00% |
| March 14, 2023 | Zeta Global Holdings Corp. | $ZETA | Greiner Christopher E | Chief Financial Officer | F | Class A Common Stock | 7168 | $10.33 | 2,163,141.0000 | 0 | 0.33% | 0.00% |