Gregg Williams Biography and Net Worth

Director of Vivani Medical

Mr. Williams has served as a member and chairman of the Vivani Medical Board since the company’s merger was completed in August 2022. Mr. Williams also serves as a member of the Compensation Committee and Chair of the Nominating and Corporate Governance Committee. Prior to the merger, Mr. Williams had served as a member of the Second Sight Board since June 2009, Chairman of the Second Sight Board since March 2018 and also as a member of the Nano Precision Medical Board. Mr. Williams is the Chairman, President, and Chief Executive Officer at Williams International Co., LLC (“Williams International”), a leading developer and manufacturer of gas turbine engines and one of the largest privately owned companies in the aviation industry, positions he has held since July 1999.

Previously, Mr. Williams held several key managerial positions within Williams International including serving as its President and Chief Operating Officer, Vice President, Advanced Technology, Director, Program Management and Director, Engineering. In addition, Mr. Williams is Chairman and majority owner of Ramos Arizpe Manufacturing, a high-volume automotive engine parts manufacturing company located in Mexico. Mr. Williams received a Bachelor of Science in Mechanical Engineering from the University of Utah and holds numerous patents related to gas turbine engines, turbo machinery, rocket engines and control systems. He is a board member of the General Aviation Manufacturers Association and former member of the Henry Ford Hospital Board.

What is Gregg Williams' net worth?: The estimated net worth of Gregg Williams is at least $50.57 million as of June 15th, 2026. Mr. Williams owns 36,119,086 shares of Vivani Medical stock worth more than $50,566,720 as of August 28th. This net worth evaluation does not reflect any other assets that Mr. Williams may own. Learn More about Gregg Williams' net worth.
How do I contact Gregg Williams?: The corporate mailing address for Mr. Williams and other Vivani Medical executives is 13170 TELFAIR AVE., SYLMAR CA, 91342. Vivani Medical can also be reached via phone at (818) 833-5000 and via email at [email protected]. Learn More on Gregg Williams' contact information.
Has Gregg Williams been buying or selling shares of Vivani Medical?: Gregg Williams has not been actively trading shares of Vivani Medical during the past quarter. Most recently, on Monday, June 15th, Gregg Williams bought 1,587,301 shares of Vivani Medical stock. The stock was acquired at an average cost of $1.26 per share, with a total value of $1,999,999.26. Following the completion of the transaction, the director now directly owns 36,119,086 shares of the company's stock, valued at $45,510,048.36. Learn More on Gregg Williams' trading history.
Who are Vivani Medical's active insiders?: Vivani Medical's insider roster includes Donald Dwyer (Chief Business Officer), and Gregg Williams (Director). Learn More on Vivani Medical's active insiders.
Are insiders buying or selling shares of Vivani Medical?: During the last twelve months, Vivani Medical insiders bought shares 11 times. They purchased a total of 20,411,699 shares worth more than $26,009,104.89. The most recent insider tranaction occured on June, 15th when Director Gregg Williams bought 1,587,301 shares worth more than $1,999,999.26. Insiders at Vivani Medical own 53.3% of the company. Learn More about insider trades at Vivani Medical.
Information on this page was last updated on 6/15/2026.

Gregg Williams Insider Trading History at Vivani Medical

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
6/15/2026	Buy	1,587,301	$1.26	$1,999,999.26	36,119,086
5/15/2026	Buy	1,587,301	$1.26	$1,999,999.26	34,531,785
4/15/2026	Buy	1,587,301	$1.26	$1,999,999.26	32,944,484
3/15/2026	Buy	1,575,231	$1.07	$1,685,497.17	31,357,183
1/27/2026	Buy	1,351,351	$1.48	$1,999,999.48	27,915,460
1/15/2026	Buy	1,737,765	$1.14	$1,981,052.10	26,564,109
12/15/2025	Buy	1,737,765	$1.14	$1,981,052.10	24,826,344
11/15/2025	Buy	1,737,764	$1.14	$1,981,050.96	23,088,579
10/27/2025	Buy	3,703,703	$1.62	$5,999,998.86	21,350,815
10/15/2025	Buy	1,737,764	$1.14	$1,981,050.96	17,647,112
9/15/2025	Buy	2,068,453	$1.16	$2,399,405.48	15,909,348
5/16/2025	Buy	2,405	$1.01	$2,429.05	13,840,895
5/15/2025	Buy	6,836	$1.01	$6,904.36	13,838,490
5/14/2025	Buy	3,499	$1.01	$3,533.99	13,831,654
4/24/2025	Buy	1,113	$1.01	$1,124.13	13,828,155
4/21/2025	Buy	1,569	$1.01	$1,584.69	13,826,799
4/11/2025	Buy	2,311	$1.01	$2,334.11	13,825,230
4/9/2025	Buy	18,529	$1.02	$18,899.58	13,822,919
4/7/2025	Buy	44,400	$0.99	$43,956.00	4,799,200
4/4/2025	Buy	34,000	$0.99	$33,660.00	4,754,800
4/2/2025	Buy	2,000	$1.01	$2,020.00	4,697,861
11/8/2024	Buy	3,968,253	$1.26	$4,999,998.78	4,695,861
2/15/2024	Buy	1,078	$1.01	$1,088.78	727,608
2/8/2024	Buy	1,119	$1.01	$1,130.19	725,459
1/31/2024	Buy	100	$1.01	$101.00	722,345
1/22/2024	Buy	7,620	$1.01	$7,696.20	721,411
1/18/2024	Buy	999	$1.01	$1,008.99	713,714
1/16/2024	Buy	13,067	$1.01	$13,197.67	712,715
1/8/2024	Buy	6,731	$1.08	$7,269.48	699,648
1/4/2024	Buy	4,200	$1.07	$4,494.00	690,917
1/2/2024	Buy	3,548	$1.01	$3,583.48	683,154
12/22/2023	Buy	100	$1.00	$100.00	679,606
12/20/2023	Buy	3,734	$0.88	$3,285.92	529,566
12/18/2023	Buy	2,000	$0.90	$1,800.00	525,634
12/15/2023	Buy	2,000	$0.89	$1,780.00	523,634
12/13/2023	Buy	858	$0.87	$746.46	521,333
12/11/2023	Buy	28,948	$0.89	$25,763.72	520,475
12/6/2023	Buy	993	$0.96	$953.28	491,527
11/24/2023	Buy	2,694	$0.95	$2,559.30	490,534
11/22/2023	Buy	769	$0.95	$730.55	487,840
11/16/2023	Buy	2,015	$0.95	$1,914.25	485,820
10/23/2023	Buy	100,565	$1.00	$100,565.00	482,583
10/20/2023	Buy	1,581	$1.00	$1,581.00	382,018
10/16/2023	Buy	1,600	$1.00	$1,600.00	380,437
10/12/2023	Buy	1,405	$1.00	$1,405.00	369,423
10/9/2023	Buy	664	$1.00	$664.00	368,018
10/6/2023	Buy	87,887	$1.02	$89,644.74	367,354
10/4/2023	Buy	5,452	$1.00	$5,452.00	278,043
10/2/2023	Buy	16,207	$1.00	$16,207.00	269,543
9/27/2023	Buy	1,026	$1.00	$1,026.00	233,333
9/25/2023	Buy	24,088	$0.95	$22,883.60	230,740
9/20/2023	Buy	21,028	$0.92	$19,345.76	206,254
9/18/2023	Buy	66,743	$0.96	$64,073.28	185,226
9/14/2023	Buy	35,036	$0.95	$33,284.20	118,483
9/11/2023	Buy	1,854	$0.95	$1,761.30	78,302
9/7/2023	Buy	33,700	$0.94	$31,678.00	69,450
9/5/2023	Buy	4,997	$0.93	$4,647.21	21,180
8/31/2023	Buy	5,295	$0.92	$4,871.40	5,295
4/27/2023	Buy	408,164	$0.98	$400,000.72	12,044,978

Gregg Williams Buying and Selling Activity at Vivani Medical

Vivani Medical Company Overview

Vivani Medical, Inc., a clinical stage company, develops various implants that treat chronic diseases with high unmet medical need. It engages in developing a portfolio of miniature drug implants to deliver minimally fluctuating drug profiles; and implantable visual prostheses devices to deliver useful artificial vision to blind individuals. The company is headquartered in Emeryville, California.

Today's Range

Now: $1.40

$1.40

$1.42

50 Day Range

MA: $1.34

$1.13

$1.60

2 Week Range

Now: $1.40

$0.92

$1.92

Volume

86,719 shs

Average Volume

177,342 shs

Market Capitalization

$126.28 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

2.35