Ellen F. Siminoff net worth and biography

Ellen Siminoff Biography and Net Worth

Director of Zynga

Ellen Siminoff is an experienced media and technology executive and an advisor to multiple companies, including Zynga, the world’s leading social game developer. She is also the co-founder and former president and CEO of Shmoop, an education technology company. She continues to serve on its board of directors.

Siminoff co-founded Shmoop with her husband, David, and the company’s mission is to distribute curriculum and test preparation materials across platforms worldwide. Shmoop’s materials are written in a distinctive edgy voice, which has been praised by educators, students, and parents alike.

Prior to Shmoop, Siminoff was the president and CEO of Efficient Frontier, a pioneer in dynamic Search Engine Marketing management services. She joined early in its history and grew it to manage over $1 billion in marketing spend. The company was later acquired for $425 million by Adobe.

Before joining Efficient Frontier, Siminoff spent six years at Yahoo, where she was a founding executive. During her time there, she held the roles of vice president for business development and planning, senior vice president for entertainment and small business, and senior vice president for corporate development.

Early in her career, she managed the Los Angeles Times’ online classifieds service.

Among her other board and advisory commitments, Siminoff sits on the board of Discovery Education, a global leader in standards-based digital learning content for K-12 students and classrooms. She also serves on the board of BigCommerce and Verifone. Previous board roles include US Auto Parts, SolarWinds, Journal Broadcast Group, and Mozilla Corporation.

In 2005, Siminoff was one of eight industry professionals recognized by Forbes as a Master of Information. Since 2013, she has served on the advisory board for Stanford University’s Graduate School of Business.

Siminoff earned her bachelor’s degree in economics from Princeton University and her M.B.A. from Stanford's Graduate School of Business. She also received a graduate level certificate of programming from Harvard University in 2020.

What is Ellen F. Siminoff's net worth?: The estimated net worth of Ellen F. Siminoff is at least $2.07 million as of March 6th, 2025. Ms. Siminoff owns 253,333 shares of Zynga stock worth more than $2,072,264 as of April 12th. This net worth estimate does not reflect any other assets that Ms. Siminoff may own. Learn More about Ellen F. Siminoff's net worth.
How do I contact Ellen F. Siminoff?: The corporate mailing address for Ms. Siminoff and other Zynga executives is 699 Eighth Street, San Francisco CA, 94103. Zynga can also be reached via phone at (855) 449-9642 and via email at investors@zynga.com. Learn More on Ellen F. Siminoff's contact information.
Has Ellen F. Siminoff been buying or selling shares of Zynga?: Ellen F. Siminoff has not been actively trading shares of Zynga during the past quarter. Most recently, Ellen F. Siminoff sold 5,000 shares of the business's stock in a transaction on Wednesday, December 15th. The shares were sold at an average price of $6.18, for a transaction totalling $30,900.00. Learn More on Ellen F. Siminoff's trading history.
Who are Zynga's active insiders?: Zynga's insider roster includes Matthew Bromberg (COO), Jeffrey Buckley (CAO), Regina Dugan (Director), Frank Gibeau (CEO), James Griffin (CFO), Bernard Kim (Insider), Phuong Phillips (Insider), Mark Pincus (Founder & Executive Chairman of the Board), Jeffrey Ryan (Insider), and Ellen Siminoff (Director). Learn More on Zynga's active insiders.

Ellen F. Siminoff Insider Trading History at Zynga

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
12/15/2021	Sell	5,000	$6.18	$30,900.00
10/15/2021	Sell	5,000	$7.46	$37,300.00
9/15/2021	Sell	5,000	$8.03	$40,150.00	24,204
8/16/2021	Sell	5,000	$8.18	$40,900.00	24,204
7/15/2021	Sell	5,000	$10.39	$51,950.00	18,657
6/15/2021	Sell	5,000	$10.44	$52,200.00	18,657
5/17/2021	Sell	5,000	$10.09	$50,450.00	18,657
4/15/2021	Sell	5,000	$10.69	$53,450.00	12,438
3/15/2021	Sell	5,000	$10.13	$50,650.00	12,438
2/16/2021	Sell	5,000	$11.55	$57,750.00	6,219
1/15/2021	Sell	5,000	$9.83	$49,150.00	6,219
12/15/2020	Sell	5,000	$9.00	$45,000.00	6,219
11/16/2020	Sell	5,000	$7.94	$39,700.00
9/15/2020	Sell	5,000	$8.50	$42,500.00	145,116
8/14/2020	Sell	5,000	$9.34	$46,700.00	138,898
7/15/2020	Sell	5,000	$9.46	$47,300.00	138,898
6/15/2020	Sell	5,000	$9.13	$45,650.00	138,898
5/15/2020	Sell	5,000	$7.90	$39,500.00	138,898
4/15/2020	Sell	5,000	$7.38	$36,900.00	130,688
3/16/2020	Sell	5,000	$6.20	$31,000.00	130,688
2/14/2020	Sell	5,000	$6.94	$34,700.00	130,688
1/15/2020	Sell	5,000	$6.85	$34,250.00	122,478
12/16/2019	Sell	5,000	$6.27	$31,350.00
11/15/2019	Sell	5,000	$6.29	$31,450.00	130,688
10/15/2019	Sell	5,000	$6.16	$30,800.00	336,052
9/19/2019	Sell	5,000	$6.11	$30,550.00	229,092
11/26/2018	Sell	12,000	$3.52	$42,240.00	191,812
10/24/2018	Sell	12,000	$3.93	$47,160.00	189,277
9/24/2018	Sell	12,000	$3.90	$46,800.00	201,277
8/24/2018	Sell	12,000	$3.92	$47,040.00	213,277
7/24/2018	Sell	12,000	$4.20	$50,400.00	210,743
6/25/2018	Sell	12,000	$4.10	$49,200.00	222,743
5/24/2018	Sell	12,000	$4.11	$49,320.00	234,743
4/24/2018	Sell	12,000	$3.52	$42,240.00	229,321
3/26/2018	Sell	12,000	$3.80	$45,600.00	241,321
2/26/2018	Sell	12,000	$3.62	$43,440.00	235,900
1/24/2018	Sell	12,000	$3.74	$44,880.00	247,900
12/28/2017	Sell	12,000	$3.97	$47,640.00
12/28/2017	Sell	12,000	$3.97	$47,640.00
11/1/2017	Sell	12,000	$3.86	$46,320.00	139,900
10/2/2017	Sell	12,000	$3.79	$45,480.00	122,478
9/1/2017	Sell	12,000	$3.77	$45,240.00	134,478
8/1/2017	Sell	12,000	$3.62	$43,440.00	158,478
7/3/2017	Sell	12,000	$3.64	$43,680.00	141,057
6/1/2017	Sell	12,000	$3.56	$42,720.00	153,057
5/1/2017	Sell	12,000	$2.91	$34,920.00	177,057
4/3/2017	Sell	12,000	$2.84	$34,080.00	157,973
1/3/2017	Sell	12,000	$2.59	$31,080.00	174,889
9/15/2015	Sell	10,000	$2.48	$24,800.00	16,723
7/15/2015	Sell	10,000	$2.77	$27,700.00
6/15/2015	Sell	10,000	$3.00	$30,000.00
4/15/2015	Sell	10,000	$2.44	$24,400.00
3/16/2015	Sell	10,000	$2.55	$25,500.00
2/17/2015	Sell	10,000	$2.24	$22,400.00
1/15/2015	Sell	10,000	$2.57	$25,700.00
12/15/2014	Sell	10,000	$2.51	$25,100.00
10/31/2012	Buy	250,000	$2.22	$555,000.00

See Full Table

Ellen F. Siminoff Buying and Selling Activity at Zynga

Zynga Company Overview

Zynga Inc. develops, markets, and operates social game services in the United States and internationally. The company provides social games as live services played on mobile platforms, such as Apple iOS and Google's Android operating systems; social networking platforms, such as Facebook and Snapchat; and personal computers consoles, such as Nintendo's Switch game console, and other platforms and consoles. It also provides advertising services comprising mobile advertisements, engagement advertisements and offers, and branded virtual items and sponsorships for marketers and advertisers; and licenses its own brands. In addition, the company operates mobile programmatic advertising and monetization platform. Zynga Inc. was founded in 2007 and is headquartered in San Francisco, California.

Today's Range

Now: $8.18

$8.18

50 Day Range

MA: $8.18

$8.18

2 Week Range

Now: $8.18

$5.57

$11.25

Volume

50,182 shs

Average Volume

36,117,266 shs

Market Capitalization

$9.26 billion

P/E Ratio

N/A

Dividend Yield