Insider · CIK 0001624919
Gregg Williams
directorowner
Files at VANI (Vivani Medical, Inc.). First filing Oct 11, 2023, latest Jul 16, 2026.
In brief
Gregg Williams files SEC Form 4 as director and 10% owner at VANI (Vivani Medical, Inc.). Since Oct 11, 2023, Gregg Williams has reported 41 open-market buys worth $35M and 0 open-market sells worth $0, the latest filed on Jul 16, 2026.
After Gregg Williams's past buys, the stock trailed the S&P 500 by a median 8.5% over six months (n = 16), and 38% of those buys were ahead of the index at six months. InsiderTell labels that a negative record.
The newest scored trade: bought $1000k of VANI on Jul 15, 2026, filed Jul 16, 2026, scored 44 (moderate). In the last 12 months: 12 buys worth $27M and 0 sells worth $0.
Track record
Negative
Past buys trailed the index over six months, median.
Median 6-month excess
-8.5%
after past buys, n = 16
Hit rate
38%
past buys that beat the index over 6 months
Open-market trades
41 / 0
$35M bought, $0 sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
VANI: Vivani Medical, Inc.
VANIOct 12, 2026 · close 1.19
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 44Moderate | VANIbuy Vivani Medical, Inc. | $1000k 793,650 shares | +2% | +50% from low-25% from high | |
| 48Moderate | VANIbuy Vivani Medical, Inc. | $2.0M 1,587,301 shares | +5% | +20% from low-40% from high | |
| 48Moderate | VANIbuy Vivani Medical, Inc. | $2.0M 1,587,301 shares | +5% | +25% from low-37% from high | |
| 56Moderate | VANIbuy Vivani Medical, Inc. | $2.0M 1,587,301 shares | +5% | +22% from low-39% from high | |
| 56Moderate | VANIbuy Vivani Medical, Inc. | $1.7M 1,575,231 shares | +5% | +15% from low-41% from high | |
| 56Moderate | VANIbuy Vivani Medical, Inc. | $2.0M 1,866,492 shares | +7% | +23% from low-37% from high | |
| 52Moderate | VANIbuy Vivani Medical, Inc. | $2.0M 1,351,351 shares | +5% | +44% from low-26% from high | |
| 56Moderate | VANIbuy Vivani Medical, Inc. | $2.0M 1,737,765 shares | +7% | +31% from low-33% from high | |
| 60Notable | Vivani Medical, Inc. | $2.0M 1,737,765 shares | +8% | +41% from low-28% from high | |
| 52Moderate | VANIbuy Vivani Medical, Inc. | $2.0M 1,737,764 shares | +8% | +48% from low-24% from high | |
| 51Moderate | VANIbuy Vivani Medical, Inc. | $6.0M 3,703,703 shares | +21% | +69% from low-13% from high | |
| 52Moderate | VANIbuy Vivani Medical, Inc. | $2.0M 1,737,764 shares | +11% | +38% from low-19% from high | |
| 47Moderate | VANIbuy Vivani Medical, Inc. | $2.4M 2,068,453 shares | +15% | +32% from low-22% from high | |
| 33Weak | VANIbuy Vivani Medical, Inc. | $13k 12,740 shares | +0% | +5% from low-30% from high | |
| 29Weak | VANIbuy Vivani Medical, Inc. | $1,124 1,113 shares | +0% | +7% from low-29% from high | |
| 29Weak | VANIbuy Vivani Medical, Inc. | $1,830 1,812 shares | +0% | +6% from low-30% from high | |
| 37Weak | Vivani Medical, Inc. | $21k 20,840 shares | +0% | +9% from low-28% from high | |
| 58Moderate | Vivani Medical, Inc. | $205k 205,482 shares | +4% | 0% from low-34% from high | |
| 36Weak | Vivani Medical, Inc. | $25k 24,939 shares | +1% | 0% from low-30% from high | |
| 50Moderate | VANIbuy Vivani Medical, Inc. | $5.0M 3,968,253 shares | +545% | - | |
| 18Weak | VANIbuy Vivani Medical, Inc. | $1,089 1,078 shares | +0% | +22% from low-33% from high | |
| 18Weak | VANIbuy Vivani Medical, Inc. | $2,212 2,190 shares | +0% | +17% from low-36% from high | |
| 18Weak | VANIbuy Vivani Medical, Inc. | $2,015 1,995 shares | +0% | +19% from low-35% from high | |
| 18Weak | VANIbuy Vivani Medical, Inc. | $101 100 shares | +0% | +17% from low-36% from high | |
| 18Weak | VANIbuy Vivani Medical, Inc. | $842 834 shares | +0% | +19% from low-35% from high | |
| 23Weak | VANIbuy Vivani Medical, Inc. | $7,696 7,620 shares | +1% | +17% from low-36% from high | |
| 18Weak | VANIbuy Vivani Medical, Inc. | $1,087 1,076 shares | +0% | +17% from low-36% from high | |
| 23Weak | VANIbuy Vivani Medical, Inc. | $13k 13,067 shares | +2% | +17% from low-36% from high | |
| 14Weak | VANIbuy Vivani Medical, Inc. | $7,269 6,731 shares | +1% | +28% from low-30% from high | |
| 18Weak | VANIbuy Vivani Medical, Inc. | $6,654 6,200 shares | +1% | +24% from low-32% from high | |
| 23Weak | VANIbuy Vivani Medical, Inc. | $7,182 7,111 shares | +1% | +21% from low-34% from high | |
| 22Weak | Vivani Medical, Inc. | $100 100 shares | +0% | +34% from low-27% from high | |
| 58Moderate | Vivani Medical, Inc. | $135k 153,872 shares | +29% | +5% from low-43% from high | |
| 36Weak | Vivani Medical, Inc. | $3,845 4,301 shares | +1% | +4% from low-44% from high | |
| 49Moderate | Vivani Medical, Inc. | $27k 29,806 shares | +6% | +4% from low-45% from high | |
| 26Weak | Vivani Medical, Inc. | $953 993 shares | +0% | +13% from low-45% from high | |
| 26Weak | Vivani Medical, Inc. | $3,290 3,463 shares | +1% | +12% from low-48% from high | |
| 26Weak | Vivani Medical, Inc. | $3,103 3,266 shares | +1% | +12% from low-48% from high | |
| 39Weak | VANIbuy Vivani Medical, Inc. | $103k 103,368 shares | +27% | +18% from low-49% from high | |
| 23Weak | VANIbuy Vivani Medical, Inc. | $13k 12,419 shares | +3% | +20% from low-50% from high | |
| 13Weak | VANIbuy Vivani Medical, Inc. | $664 664 shares | +0% | +18% from low-54% from high |
Transactions
The newest 50 of 77 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +793,650 | $1.26 | $1000k | 36,912,736 | Jul 16, 2026 |
| Jun 24, 2026 | VANI Vivani Medical, Inc. | AGrant or award Non-Qualified Stock Option (right to buy)derivative | +36,516 | $1.22 | $45k | 36,516 | Jun 25, 2026 |
| Jun 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,587,301 | $1.26 | $2.0M | 36,119,086 | Jun 16, 2026 |
| May 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,587,301 | $1.26 | $2.0M | 34,531,785 | May 19, 2026 |
| Apr 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,587,301 | $1.26 | $2.0M | 32,944,484 | Apr 16, 2026 |
| Mar 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,310,680 | $1.03 | $1.4M | 31,092,632 | Mar 16, 2026 |
| Mar 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +264,551 | $1.26 | $333k | 31,357,183 | Mar 16, 2026 |
| Feb 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,601,941 | $1.03 | $1.6M | 29,517,401 | Feb 17, 2026 |
| Feb 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +264,551 | $1.26 | $333k | 29,781,952 | Feb 17, 2026 |
| Jan 27, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,351,351 | $1.48 | $2.0M | 27,915,460 | Jan 28, 2026 |
| Jan 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,473,214 | $1.12 | $1.6M | 26,299,558 | Jan 20, 2026 |
| Jan 15, 2026 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +264,551 | $1.26 | $333k | 26,564,109 | Jan 20, 2026 |
| Jan 1, 2026 | VANI Vivani Medical, Inc. | AGrant or award Non-Qualified Stock Option (right to buy)derivative | +72,392 | $1.23 | $89k | 72,392 | Jan 5, 2026 |
| Dec 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,473,214 | $1.12 | $1.6M | 24,561,793 | Dec 16, 2025 |
| Dec 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +264,551 | $1.26 | $333k | 24,826,344 | Dec 16, 2025 |
| Nov 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,473,214 | $1.12 | $1.6M | 22,824,029 | Nov 17, 2025 |
| Nov 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +264,550 | $1.26 | $333k | 23,088,579 | Nov 17, 2025 |
| Oct 27, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +3,703,703 | $1.62 | $6.0M | 21,350,815 | Oct 28, 2025 |
| Oct 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,473,214 | $1.12 | $1.6M | 17,382,562 | Oct 16, 2025 |
| Oct 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +264,550 | $1.26 | $333k | 17,647,112 | Oct 16, 2025 |
| Sep 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,473,215 | $1.12 | $1.7M | 15,314,110 | Sep 17, 2025 |
| Sep 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +595,238 | $1.26 | $750k | 15,909,348 | Sep 17, 2025 |
| Jun 24, 2025 | VANI Vivani Medical, Inc. | AGrant or award Non-Qualified Stock Option (right to buy)derivative | +35,135 | $1.27 | $45k | 35,135 | Jun 26, 2025 |
| Jan 1, 2025 | VANI Vivani Medical, Inc. | DDisposition to issuer Non-Qualified Stock Option (right to buy)derivative | -364 | $1.16 | $422 | 76,393 | Jun 26, 2025 |
| May 14, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +3,499 | $1.01 | $3,534 | 13,831,654 | May 16, 2025 |
| May 15, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +6,836 | $1.01 | $6,904 | 13,838,490 | May 16, 2025 |
| May 16, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +2,405 | $1.01 | $2,429 | 13,840,895 | May 16, 2025 |
| Apr 24, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,113 | $1.01 | $1,124 | 13,828,155 | Apr 28, 2025 |
| Apr 21, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +1,569 | $1.01 | $1,585 | 13,826,799 | Apr 23, 2025 |
| Apr 22, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +243 | $1.01 | $245 | 13,827,042 | Apr 23, 2025 |
| Apr 9, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +18,529 | $1.02 | $19k | 13,822,919 | Apr 11, 2025 |
| Apr 11, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +2,311 | $1.01 | $2,334 | 13,825,230 | Apr 11, 2025 |
| Apr 4, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +34,000 | $0.99 | $34k | 4,754,800 | Apr 8, 2025 |
| Apr 7, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +44,400 | $0.99 | $44k | 4,799,200 | Apr 8, 2025 |
| Apr 4, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +5,600 | $0.98 | $5,488 | 13,682,908 | Apr 8, 2025 |
| Apr 7, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +58,583 | $0.99 | $58k | 13,741,491 | Apr 8, 2025 |
| Apr 8, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stockindirect: See footnote | +62,899 | $1.02 | $64k | 13,804,390 | Apr 8, 2025 |
| Apr 2, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +2,000 | $1.01 | $2,020 | 4,697,861 | Apr 4, 2025 |
| Apr 3, 2025 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +22,939 | $1.00 | $23k | 4,720,800 | Apr 4, 2025 |
| Nov 8, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +3,968,253 | $1.26 | $5.0M | 4,695,861 | Nov 13, 2024 |
| Feb 15, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +1,078 | $1.01 | $1,089 | 727,608 | Feb 20, 2024 |
| Feb 8, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +1,119 | $1.01 | $1,130 | 725,459 | Feb 9, 2024 |
| Feb 9, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +1,071 | $1.01 | $1,082 | 726,530 | Feb 9, 2024 |
| Feb 5, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +1,939 | $1.01 | $1,958 | 724,284 | Feb 6, 2024 |
| Feb 6, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +56 | $1.01 | $57 | 724,340 | Feb 6, 2024 |
| Jan 31, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +100 | $1.01 | $101 | 722,345 | Feb 2, 2024 |
| Jan 23, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +834 | $1.01 | $842 | 722,245 | Jan 25, 2024 |
| Jan 22, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +7,620 | $1.01 | $7,696 | 721,411 | Jan 22, 2024 |
| Jan 18, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +999 | $1.01 | $1,009 | 713,714 | Jan 19, 2024 |
| Jan 19, 2024 | VANI Vivani Medical, Inc. | POpen-market purchase Common Stock | +77 | $1.01 | $78 | 713,791 | Jan 19, 2024 |
50 of 77 rows shown.
Questions about Gregg Williams
Answered from the filings on this page, as of the latest one.
Is Gregg Williams buying or selling?
In the last 12 months Gregg Williams reported 12 open-market buys worth $27M and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $1000k of VANI on Jul 15, 2026. Grants, option exercises and tax withholding are not counted.
How did Gregg Williams's past buys perform?
Measured from the first close after each filing, the stock trailed the S&P 500 by a median 8.5% over six months across 16 past buys, with 38% ahead of the index. Past results describe what happened; they do not predict the next trade.
Where does Gregg Williams file Form 4?
Gregg Williams has filed Form 4 at VANI (Vivani Medical, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.