Gregg Williams

Director

Gregg Williams (Director) filed 12 Form 4 reports in the trailing twelve months (12 purchases, 0 sales), most often in Vivani Medical, Inc. (VANI). Across 12 priced purchase filings, the average 21-session return was -1.2% from execution and -4.4% from disclosure (delay-adjusted; derived). The largest single filing was $6.0M of VANI (3,703,703 sh × $1.62, as filed), executed Oct 27 2025.

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Return, ttmiAverage return per filing, trailing twelve months

-1.2%

avg across 12 priced filings

Delay-adjustediThe same average, entered at disclosure dates

-4.4%

same 12 filings, from disclosure

Filings, ttm

12 buys · 0 sells

Median delay

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$26.6M

shares × price, as filed

Last traded

Jul 15

Filed Jul 16

Median ADV $616K across their filed names

Impact on $10,000 · 12M

$6,021 (-39.8%)

S&P 500 $11,725 (+17.2%) · 57.0 pts behind

Gregg Williams S&P 500

Compounded across filings from disclosure dates · past 12 months

Open performance→

Volume by month

Buys $34.0M Sells $0

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Healthcare 12 filings

Sector per market data · by filing · past 12 months

Most traded names

VANI

Vivani Medical, Inc. VANI · 14 buys · 0 sells 14 filings

Recent filings

VANIPURCHASE Vivani Medical, Inc. View filing → $1000K
793,650 sh × $1.26
Exec Jul 15
Filed Jul 16 · 9:00 AM ET VANIPURCHASE Vivani Medical, Inc. View filing → $2.0M
1,587,301 sh × $1.26
Exec Jun 15
Filed Jun 16 · 9:00 AM ET VANIPURCHASE Vivani Medical, Inc. View filing → $2.0M
1,587,301 sh × $1.26
Exec May 15
Filed May 19 · 8:31 AM ET VANIPURCHASE Vivani Medical, Inc. View filing → $2.0M
1,587,301 sh × $1.26
Exec Apr 15
Filed Apr 16 · 6:30 AM ET VANIPURCHASE Vivani Medical, Inc. View filing → $1.7M
1,575,231 sh across 2 lots
Exec Mar 15
Filed Mar 16 · 6:15 AM ET VANIPURCHASE Vivani Medical, Inc. View filing → $2.0M
1,866,492 sh across 2 lots
Exec Feb 15
Filed Feb 17 · 6:01 AM ET VANIPURCHASE Vivani Medical, Inc. View filing → $2.0M
1,351,351 sh × $1.48
Exec Jan 27
Filed Jan 28 · 10:01 AM ET VANIPURCHASE Vivani Medical, Inc. View filing → $2.0M
1,737,765 sh across 2 lots
Exec Jan 15
Filed Jan 20 · 9:00 AM ET More filings →