Barry Zwarenstein
Chief Financial Officer, VERIFONE SYSTEMS, INC.
Companies
- ON24Board member Feb 2, 2021 to now1
- JFrog LtdBoard member Sep 15, 2020 to now2
- Five9 Inc.Chief financial officer Apr 3, 2014 to Mar 6, 20253
- Five9 Inc.Chief executive officer Dec 5, 2017 to Apr 27, 20184
- VeriFoneChief financial officer Feb 15, 2007 to Feb 15, 20075
Holdings
Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.
Shares held
Five9 Inc. FIVN181,049 shares6$6.0M at $32.99Mar 6, 2025
JFrog Ltd FROG30,437 shares7$2.8M at $91.58Sep 14, 2026- ON24 ONTF0 shares8Apr 1, 2026
As of each latest filing. The line shows shares held over time.
Recent filings
- Sep 14, 2026Sold 1,250 shares at $88.38 of JFrog Ltd7
- Jul 23, 2026Sold 1,250 shares at $80.10 of JFrog Ltd9
- Jun 8, 2026Sold 1,250 shares at $84.35 of JFrog Ltd10
- May 21, 2026Granted 4,427 shares of JFrog Ltd11
- May 1, 2026Sold 150 shares at $49.00 of JFrog Ltd12
- May 1, 2026Sold 1,100 shares at $49.00 of JFrog Ltd12
- Apr 1, 2026Returned to company 154,586 shares of ON248
- Mar 26, 2026Sold 1,250 shares at $49.00 of JFrog Ltd13
- Jun 20, 2025Granted 31,855 shares of ON2414
- May 21, 2025Granted 5,471 shares of JFrog Ltd15
- Mar 4, 2025Sold 2,468 shares at $33.23 of Five9 Inc.6
- Dec 4, 2024Sold 3,336 shares at $41.85 of Five9 Inc.16
- Sep 10, 2024Sold 526 shares at $27.43 of Five9 Inc.17
- Sep 10, 2024Sold 3,882 shares at $26.91 of Five9 Inc.17
- Jul 16, 2024Sold 6,207 shares at $45.01 of Five9 Inc.18
- Jun 21, 2024Granted 30,198 shares of ON2419
- Jun 12, 2024Sold 4,241 shares at $45.04 of Five9 Inc.20
- Jun 12, 2024Sold 1,115 shares at $45.04 of Five9 Inc.20
- Jun 10, 2024Sold 3,318 shares at $42.98 of Five9 Inc.21
- Jun 10, 2024Sold 6,973 shares at $42.48 of Five9 Inc.21
- May 21, 2024Granted 4,614 shares of JFrog Ltd22
- Mar 5, 2024Sold 4,720 shares at $58.78 of Five9 Inc.23
- Mar 5, 2024Sold 2,325 shares at $58.77 of Five9 Inc.23
- Mar 4, 2024Granted 5,821 shares of Five9 Inc.23
- Feb 26, 2024Granted 35,684 shares of Five9 Inc.24
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1SEC EDGARON24, Board member
- 2SEC EDGARJFrog Ltd, Board member
- 3SEC EDGARFive9 Inc., Chief financial officer
- 4SEC EDGARFive9 Inc., Chief executive officer
- 5SEC EDGARVeriFone, Chief financial officer
- 6
- 7
- 8
- 9SEC EDGARForm 4 filed Jul 27, 2026
- 10SEC EDGARForm 4 filed Jun 10, 2026
- 11SEC EDGARForm 4 filed May 22, 2026
- 12SEC EDGARForm 4 filed May 5, 2026
- 13SEC EDGARForm 4 filed Mar 30, 2026
- 14SEC EDGARForm 4 filed Jun 24, 2025
- 15SEC EDGARForm 4 filed May 22, 2025
- 16SEC EDGARForm 4 filed Dec 6, 2024
- 17SEC EDGARForm 4 filed Sep 12, 2024
- 18SEC EDGARForm 4 filed Jul 18, 2024
- 19SEC EDGARForm 4 filed Jun 25, 2024
- 20SEC EDGARForm 4 filed Jun 14, 2024
- 21SEC EDGARForm 4 filed Jun 12, 2024
- 22SEC EDGARForm 4 filed May 22, 2024
- 23SEC EDGARForm 4 filed Mar 6, 2024
- 24SEC EDGARForm 4 filed Feb 28, 2024