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buyModerate

Gregg Williams bought $2.4M of VANI

director, owner at Vivani Medical, Inc.. 2,068,453 shares at an average of $1.16, traded Sep 15, 2025, filed Sep 17, 2025.

Conviction score
47
Value
$2.4M
2,068,453 shares
Holdings after
15,909,348
+15% from before
From 52-week low
+32%
low $0.96, close $1.27
From 52-week high
-22%
high $1.62, as of Sep 15, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $2.4M at market
    +25
  • Relative to holdings
    Holdings up 15%
    +3
  • Price context
    22% below the 52-week high
    +4
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (1 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +16.6%, 3m -6.9%, 6m -19.3%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

VANIOct 12, 2026 · close 1.19
Since filing Sep 17, 2025: -17.9%SPY +19.6% · excess -37.6%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001753926-25-001511, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 15, 2025POpen-market purchase
Common Stockindirect: See footnote
+1,473,215$1.12$1.7M15,314,110Sep 17, 2025
Sep 15, 2025POpen-market purchase
Common Stockindirect: See footnote
+595,238$1.26$750k15,909,348Sep 17, 2025

Related signals

Other insiders at Vivani Medical, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
44Moderate
VANIbuy
Vivani Medical, Inc.
Gregg Williams
director, owner
$1000k
793,650 shares
+2%
48Moderate
VANIbuy
Vivani Medical, Inc.
Gregg Williams
director, owner
$2.0M
1,587,301 shares
+5%
48Moderate
VANIbuy
Vivani Medical, Inc.
Gregg Williams
director, owner
$2.0M
1,587,301 shares
+5%
56Moderate
VANIbuy
Vivani Medical, Inc.
Gregg Williams
director, owner
$2.0M
1,587,301 shares
+5%
56Moderate
VANIbuy
Vivani Medical, Inc.
Gregg Williams
director, owner
$1.7M
1,575,231 shares
+5%
56Moderate
VANIbuy
Vivani Medical, Inc.
Gregg Williams
director, owner
$2.0M
1,866,492 shares
+7%
52Moderate
VANIbuy
Vivani Medical, Inc.
Gregg Williams
director, owner
$2.0M
1,351,351 shares
+5%
56Moderate
VANIbuy
Vivani Medical, Inc.
Gregg Williams
director, owner
$2.0M
1,737,765 shares
+7%
34Weak
VANIbuy 2
Vivani Medical, Inc.
Aaron Mendelsohn
director
$25k
20,000 shares
+12%
60Notable
VANIbuy 2
Vivani Medical, Inc.
Gregg Williams
director, owner
$2.0M
1,737,765 shares
+8%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Gregg Williams bought $2.4M of VANI | InsiderTell