Barry Zwarenstein net worth and biography

Barry Zwarenstein Biography and Net Worth

CFO of Five9

Barry Zwarenstein is the chief financial officer at Five9, the leading provider of call center contact center software. He joined the company in 2012 and is responsible for all financial planning and operations.

Zwarenstein has over 35 years of executive financial experience in the tech industry. He has served as CFO for several companies and managed three successful IPOs (Five9, VeriFone and Logitech).

Prior to Five9, Zwarenstein served as senior vice president and CFO at SMART Modular Technologies, a global leader in specialty memory solutions. While there, he played a key role in its $635 million sale to Silver Lake Partners. Before that, he served as executive vice president and CFO for VeriFone, where he managed the IPO and subsequent follow-on and debt offerings.

Additionally, he has served as SVP of finance and CFO for Iomega Corporation, Acuson Corporation, Mellanox Technologies and Logitech.

Zwarenstein also sits on the boards of multiple companies, including JFrog, Aria Systems, and ON24. He previously served on the board of Dealertrack for eight years. In 2019, he was recognized with the “Bay Area CFO of the Year” award in the small to medium public company category.

He earned a bachelor of commerce degree from the University of Natal, South Africa and an M.B.A. from the Wharton School of Business at the University of Pennsylvania.

What is Barry Zwarenstein's net worth?: The estimated net worth of Barry Zwarenstein is at least $2.33 million as of March 4th, 2025. Mr. Zwarenstein owns 92,583 shares of Five9 stock worth more than $2,330,129 as of May 5th. This net worth evaluation does not reflect any other assets that Mr. Zwarenstein may own. Learn More about Barry Zwarenstein's net worth.
How do I contact Barry Zwarenstein?: The corporate mailing address for Mr. Zwarenstein and other Five9 executives is BISHOP RANCH 8 4000 EXECUTIVE PARKWAY SUITE 400, SAN RAMON CA, 94583. Five9 can also be reached via phone at (925) 201-2000 and via email at [email protected]. Learn More on Barry Zwarenstein's contact information.
Has Barry Zwarenstein been buying or selling shares of Five9?: Barry Zwarenstein has not been actively trading shares of Five9 during the last quarter. Most recently, Barry Zwarenstein sold 2,468 shares of the business's stock in a transaction on Tuesday, March 4th. The shares were sold at an average price of $33.23, for a transaction totalling $82,011.64. Following the completion of the sale, the chief financial officer now directly owns 92,583 shares of the company's stock, valued at $3,076,533.09. Learn More on Barry Zwarenstein's trading history.
Who are Five9's active insiders?: Five9's insider roster includes Jack Acosta (Director), Kimberly Alexy (Director), Michael Burdiek (Director), Daniel Burkland (President), Michael Burkland (CEO), Andy Dignan (COO), Panos Kozanian (EVP), Bryan Lee (Interim Chief Financial Officer), Leena Mansharamani (CAO), Tiffany Meriweather (Insider), Rowan Trollope (CEO), Matthew Tuckness (CRO), Scott Welch (EVP), Robert Zollars (Director), and Barry Zwarenstein (CFO). Learn More on Five9's active insiders.
Are insiders buying or selling shares of Five9?: During the last twelve months, Five9 insiders bought shares 1 times. They purchased a total of 1,000 shares worth more than $24,150.00. During the last twelve months, insiders at the software maker sold shares 28 times. They sold a total of 159,686 shares worth more than $3,823,996.27. The most recent insider tranaction occured on December, 5th when President Andy Dignan sold 700 shares worth more than $14,371.00. Insiders at Five9 own 1.2% of the company. Learn More about insider trades at Five9.
Information on this page was last updated on 12/5/2025.

Barry Zwarenstein Insider Trading History at Five9

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
3/4/2025	Sell	2,468	$33.23	$82,011.64	92,583
12/4/2024	Sell	3,336	$41.85	$139,611.60	98,396
9/10/2024	Sell	4,408	$26.97	$118,883.76	101,732
7/16/2024	Sell	6,207	$45.01	$279,377.07	85,121
6/10/2024	Sell	10,291	$42.64	$438,808.24	107,255
7/13/2023	Sell	12,500	$87.70	$1,096,250.00	94,608
6/9/2023	Sell	10,000	$75.04	$750,400.00	77,303
6/5/2023	Sell	17,934	$69.61	$1,248,385.74	112,874
6/2/2023	Sell	2,500	$70.05	$175,125.00	87,303
5/22/2023	Sell	2,500	$65.09	$162,725.00	89,803
5/17/2023	Sell	2,500	$55.02	$137,550.00	94,803
4/17/2023	Sell	10,000	$71.23	$712,300.00	97,303
3/31/2023	Sell	2,500	$70.08	$175,200.00	107,303
3/29/2023	Sell	2,500	$65.06	$162,650.00	109,803
3/15/2023	Sell	5,000	$61.84	$309,200.00	112,303
3/6/2023	Sell	1,992	$68.70	$136,850.40	130,391
2/28/2023	Sell	497	$68.05	$33,820.85	132,383
12/5/2022	Sell	2,993	$66.22	$198,196.46	100,666
9/6/2022	Sell	2,993	$90.30	$270,267.90	103,659
8/15/2022	Sell	10,000	$116.32	$1,163,200.00	78,573
7/20/2022	Sell	10,000	$100.07	$1,000,700.00	78,573
6/6/2022	Sell	8,333	$100.22	$835,133.26	78,573
5/26/2022	Sell	1,712	$100.10	$171,371.20	79,238
5/19/2022	Sell	1,800	$100.10	$180,180.00	79,238
4/18/2022	Sell	10,000	$108.74	$1,087,400.00	79,088
3/4/2022	Sell	6,610	$102.36	$676,599.60
12/6/2021	Sell	3,390	$127.89	$433,547.10
11/17/2021	Sell	12,500	$165.48	$2,068,500.00
10/18/2021	Sell	12,500	$155.94	$1,949,250.00
9/17/2021	Sell	12,500	$173.87	$2,173,375.00	88,816
8/26/2021	Sell	550	$189.83	$104,406.50	81,955
8/23/2021	Sell	1,044	$182.14	$190,154.16	81,955
8/17/2021	Sell	12,500	$182.52	$2,281,500.00	94,455
7/19/2021	Sell	12,500	$186.75	$2,334,375.00	90,785
6/17/2021	Sell	12,500	$175.93	$2,199,125.00	93,701
6/4/2021	Sell	3,388	$157.53	$533,711.64	84,273
5/17/2021	Sell	12,500	$162.80	$2,035,000.00
3/16/2021	Sell	12,500	$168.97	$2,112,125.00	96,912
3/4/2021	Sell	3,751	$169.11	$634,331.61	84,412
2/16/2021	Sell	12,500	$181.91	$2,273,875.00	89,298
1/19/2021	Sell	12,500	$169.95	$2,124,375.00	113,805
12/16/2020	Sell	12,500	$168.57	$2,107,125.00	113,805
12/4/2020	Sell	3,766	$151.63	$571,038.58	104,371
11/4/2020	Sell	715	$157.66	$112,726.90	105,018
10/16/2020	Sell	2,984	$146.35	$436,708.40	108,717
9/16/2020	Sell	12,500	$121.23	$1,515,375.00	118,233
9/4/2020	Sell	2,990	$114.00	$340,860.00	111,512
7/16/2020	Sell	12,500	$110.42	$1,380,250.00	124,212
6/16/2020	Sell	12,500	$103.69	$1,296,125.00	121,817
6/4/2020	Sell	3,379	$98.91	$334,216.89	112,537
4/15/2020	Sell	8,500	$83.65	$711,025.00	114,790
3/16/2020	Sell	8,500	$53.97	$458,745.00	114,790
3/5/2020	Sell	3,048	$73.25	$223,266.00	114,790
2/18/2020	Sell	8,500	$76.70	$651,950.00	93,508
1/15/2020	Sell	8,500	$72.79	$618,715.00	93,508
12/16/2019	Sell	8,500	$67.12	$570,520.00	103,994
12/4/2019	Sell	4,398	$67.25	$295,765.50	103,994
11/15/2019	Sell	7,667	$64.74	$496,361.58	116,059
10/14/2019	Sell	7,663	$56.03	$429,357.89	116,055
9/16/2019	Sell	7,663	$54.24	$415,641.12	116,055
9/11/2019	Sell	4,372	$56.93	$248,897.96	108,392
8/14/2019	Sell	7,663	$61.47	$471,044.61	112,764
7/15/2019	Sell	7,663	$52.05	$398,859.15	112,764
6/14/2019	Sell	7,663	$50.31	$385,525.53	122,869
6/4/2019	Sell	3,118	$46.41	$144,706.38
5/1/2019	Sell	7,483	$52.83	$395,326.89	125,405
4/1/2019	Sell	8,500	$52.32	$444,720.00	125,405
3/4/2019	Sell	10,898	$53.76	$585,876.48	125,405
3/1/2019	Sell	8,500	$54.03	$459,255.00	125,405
2/1/2019	Sell	8,500	$51.41	$436,985.00	92,599
1/2/2019	Sell	8,500	$42.53	$361,505.00	98,953
12/4/2018	Sell	12,913	$42.35	$546,865.55
10/25/2018	Sell	10,000	$36.39	$363,900.00	105,349
9/25/2018	Sell	10,000	$44.79	$447,900.00	121,714
9/4/2018	Sell	6,384	$47.62	$304,006.08	121,714
8/27/2018	Sell	10,000	$47.25	$472,500.00	128,098
7/25/2018	Sell	10,000	$35.55	$355,500.00	118,098
6/25/2018	Sell	10,000	$34.33	$343,300.00	189,710
6/4/2018	Sell	4,305	$36.52	$157,218.60	189,710
5/29/2018	Sell	10,000	$33.56	$335,600.00
4/25/2018	Sell	5,000	$27.18	$135,900.00	192,831
3/26/2018	Sell	5,000	$31.16	$155,800.00	192,831
3/5/2018	Sell	3,713	$31.13	$115,585.69	192,831
2/26/2018	Sell	5,000	$29.67	$148,350.00	196,544
1/25/2018	Sell	5,000	$25.80	$129,000.00	162,760
12/26/2017	Sell	5,000	$24.52	$122,600.00	141,778
12/4/2017	Sell	3,073	$23.79	$73,106.67	121,368
11/27/2017	Sell	5,000	$24.42	$122,100.00
10/3/2017	Sell	11,000	$24.89	$273,790.00	123,698
9/5/2017	Sell	13,024	$21.25	$276,760.00	123,698
8/9/2017	Sell	3,020	$21.01	$63,450.20	126,722
8/1/2017	Sell	10,378	$22.22	$230,599.16	129,742
7/12/2017	Sell	12,622	$22.44	$283,237.68	129,742
6/15/2017	Sell	11,000	$21.97	$241,670.00	362,639
5/25/2017	Sell	12,023	$21.81	$262,221.63
3/10/2017	Sell	2,469	$16.31	$40,269.39	428,603
12/1/2016	Sell	8,000	$15.02	$120,160.00	402,896
11/1/2016	Sell	8,000	$14.35	$114,800.00	402,896
10/3/2016	Sell	8,000	$15.67	$125,360.00	422,508
9/1/2016	Sell	8,000	$15.32	$122,560.00	422,508
8/1/2016	Sell	8,000	$12.62	$100,960.00	422,508
7/1/2016	Sell	8,000	$11.82	$94,560.00	422,508
6/15/2016	Sell	8,000	$12.06	$96,480.00	422,508
3/9/2015	Buy	25,000	$4.38	$109,500.00

Barry Zwarenstein Buying and Selling Activity at Five9

Five9 Company Overview

Five9, Inc., together with its subsidiaries, provides intelligent cloud software for contact centers in the United States, India, and internationally. It offers a virtual contact center cloud platform that delivers a suite of applications, which enables the breadth of contact center-related customer service, sales, and marketing functions. The company's platform comprises of including interactive virtual agent, agent assist, workflow automation, workforce engagement management, AI insights, and AI summaries that allows to manage and optimize customer interactions across voice, chat, email, web, social media, and mobile channels directly or through its application programming interfaces. It also matches each customer interaction with an agent resource and delivers customer data to the agent in real-time through integrations with adjacent enterprise applications, such as CRM software, to optimize the customer experience and enhance agent productivity. The company serves customers in various industries, such as banking and financial services, business process outsourcers, retail, healthcare, technology, and education. Five9, Inc. was incorporated in 2001 and is headquartered in San Ramon, California.

Today's Range

Now: $25.17

$23.88

$24.73

50 Day Range

MA: $16.15

$13.61

$19.32

2 Week Range

Now: $25.17

$13.29

$30.38

Volume

1,040,972 shs

Average Volume

2,608,752 shs

Market Capitalization

$1.93 billion

P/E Ratio

37.81

Dividend Yield

N/A

Beta

1.32