ZWARENSTEIN BARRY has filed 54 insider transactions across 3 companies since February 2023.
Most recent transaction: a disposition of 154586 shares of ON24 INC. ($ONTF) on April 01, 2026.
Activity breakdown: 0 open-market purchases and 37 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | ON24 INC. | $ONTF | ZWARENSTEIN BARRY | Not found | D | Common Stock | 154586 | $0.00 | 0.0000 | 42,641,555 | 100.00% | 0.36% |
| April 1, 2026 | ON24 INC. | $ONTF | ZWARENSTEIN BARRY | Not found | D | Stock Options (Right to buy) | 110834 | $0.00 | 0.0000 | 42,641,555 | 100.00% | 0.26% |
| March 26, 2026 | JFrog Ltd | $FROG | ZWARENSTEIN BARRY | Not found | S | Ordinary Shares | 1250 | $49.00 | 31,253.0000 | 119,628,931 | 3.85% | 0.00% |
| June 20, 2025 | ON24 INC. | $ONTF | ZWARENSTEIN BARRY | Not found | A | Common Stock | 31855 | $0.00 | 154,586.0000 | 42,013,694 | 25.96% | 0.08% |
| May 21, 2025 | JFrog Ltd | $FROG | ZWARENSTEIN BARRY | Not found | A | Ordinary Shares | 5471 | $0.00 | 32,503.0000 | 112,878,051 | 20.24% | 0.00% |
| March 4, 2025 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2468 | $33.23 | 181,049.0000 | 88,645,000 | 1.34% | 0.00% |
| Dec. 4, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 3336 | $41.85 | 183,517.0000 | 74,876,000 | 1.79% | 0.00% |
| Sept. 10, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 526 | $27.43 | 186,853.0000 | 74,203,000 | 0.28% | 0.00% |
| Sept. 10, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 3882 | $26.91 | 187,379.0000 | 74,203,000 | 2.03% | 0.01% |
| July 16, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 6207 | $45.01 | 191,261.0000 | 74,203,000 | 3.14% | 0.01% |
| June 21, 2024 | ON24 INC. | $ONTF | ZWARENSTEIN BARRY | Not found | A | Common Stock | 30198 | $0.00 | 122,731.0000 | 41,189,321 | 32.63% | 0.07% |
| June 12, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 4241 | $45.04 | 197,468.0000 | 73,488,000 | 2.10% | 0.01% |
| June 12, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 1115 | $45.04 | 197,468.0000 | 73,488,000 | 0.56% | 0.00% |
| June 10, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 6973 | $42.48 | 206,142.0000 | 73,488,000 | 3.27% | 0.01% |
| June 10, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 3318 | $42.98 | 202,824.0000 | 73,488,000 | 1.61% | 0.00% |
| May 21, 2024 | JFrog Ltd | $FROG | ZWARENSTEIN BARRY | Not found | A | Ordinary Shares | 4614 | $0.00 | 26,789.0000 | 0 | 20.81% | 0.00% |
| March 4, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | A | Common Stock | 5821 | $0.00 | 219,816.0000 | 72,926,000 | 2.72% | 0.01% |
| March 5, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 4720 | $58.78 | 212,771.0000 | 72,926,000 | 2.17% | 0.01% |
| March 5, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2325 | $58.77 | 217,491.0000 | 72,926,000 | 1.06% | 0.00% |
| Feb. 26, 2024 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | A | Common Stock | 35684 | $0.00 | 213,995.0000 | 72,926,000 | 20.01% | 0.05% |
| Dec. 6, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | F | Common Stock | 5859 | $81.59 | 178,311.0000 | 72,356,000 | 3.18% | 0.01% |
| Sept. 5, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 6007 | $70.96 | 184,170.0000 | 71,627,000 | 3.16% | 0.01% |
| Aug. 15, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | M | Common Stock | 10000 | $29.89 | 200,177.0000 | 71,627,000 | 5.26% | 0.01% |
| Aug. 15, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 3345 | $69.16 | 196,832.0000 | 71,627,000 | 1.67% | 0.00% |
| Aug. 15, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 3957 | $70.22 | 192,875.0000 | 71,627,000 | 2.01% | 0.01% |
| Aug. 15, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2698 | $71.29 | 190,177.0000 | 71,627,000 | 1.40% | 0.00% |
| Aug. 15, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | M | Employee Stock Option (right to buy) | 10000 | $0.00 | 55,376.0000 | 71,627,000 | 15.30% | 0.01% |
| July 13, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 5300 | $87.17 | 197,377.0000 | 71,627,000 | 2.61% | 0.01% |
| July 13, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | M | Common Stock | 12500 | $29.89 | 202,677.0000 | 71,627,000 | 6.57% | 0.02% |
| July 13, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 6800 | $88.06 | 190,577.0000 | 71,627,000 | 3.45% | 0.01% |
| July 13, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 400 | $88.60 | 190,177.0000 | 71,627,000 | 0.21% | 0.00% |
| July 13, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | M | Employee Stock Option (right to buy) | 12500 | $0.00 | 65,376.0000 | 71,627,000 | 16.05% | 0.02% |
| June 23, 2023 | ON24 INC. | $ONTF | ZWARENSTEIN BARRY | Not found | A | Common Stock | 21547 | $0.00 | 92,533.0000 | 47,554,801 | 30.35% | 0.05% |
| June 9, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 10000 | $75.04 | 190,177.0000 | 71,259,000 | 5.00% | 0.01% |
| June 9, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 10000 | $75.04 | 190,177.0000 | 71,259,000 | 5.00% | 0.01% |
| June 5, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 200 | $70.28 | 208,111.0000 | 71,259,000 | 0.10% | 0.00% |
| June 5, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 7934 | $69.51 | 200,177.0000 | 71,259,000 | 3.81% | 0.01% |
| June 2, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2500 | $70.05 | 200,177.0000 | 71,259,000 | 1.23% | 0.00% |
| June 5, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 1542 | $68.48 | 216,569.0000 | 71,259,000 | 0.71% | 0.00% |
| June 5, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 8258 | $69.91 | 208,311.0000 | 71,259,000 | 3.81% | 0.01% |
| May 22, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2500 | $65.09 | 220,611.0000 | 71,259,000 | 1.12% | 0.00% |
| May 18, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2500 | $60.02 | 223,111.0000 | 71,259,000 | 1.11% | 0.00% |
| May 17, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2500 | $55.02 | 225,611.0000 | 71,259,000 | 1.10% | 0.00% |
| April 28, 2023 | ON24 INC. | $ONTF | ZWARENSTEIN BARRY | Not found | A | Common Stock | 10000 | $0.00 | 67,086.0000 | 47,554,801 | 17.52% | 0.02% |
| April 17, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 9249 | $71.20 | 228,445.0000 | 71,259,000 | 3.89% | 0.01% |
| April 17, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 751 | $71.62 | 227,694.0000 | 71,259,000 | 0.33% | 0.00% |
| March 31, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2500 | $70.08 | 237,694.0000 | 69,920,000 | 1.04% | 0.00% |
| March 29, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 2500 | $65.06 | 240,194.0000 | 69,920,000 | 1.03% | 0.00% |
| March 15, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 3552 | $62.16 | 242,694.0000 | 69,920,000 | 1.44% | 0.01% |
| March 15, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 1448 | $61.07 | 246,246.0000 | 69,920,000 | 0.58% | 0.00% |
| March 6, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 1992 | $68.70 | 247,694.0000 | 69,920,000 | 0.80% | 0.00% |
| Feb. 27, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | A | Common Stock | 34259 | $0.00 | 248,805.0000 | 69,920,000 | 15.97% | 0.05% |
| Feb. 27, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | A | Common Stock | 1378 | $0.00 | 250,183.0000 | 69,920,000 | 0.55% | 0.00% |
| Feb. 28, 2023 | Five9, Inc. | $FIVN | ZWARENSTEIN BARRY | Chief Financial Officer | S | Common Stock | 497 | $68.05 | 249,686.0000 | 69,920,000 | 0.20% | 0.00% |