Insider · SEC Form 4 filer

Gregg Williams

Past buys: 3 of 7 beat

Companies

Where they file as an insider

Vivani Medical (VANI) Director, 10% owner Latest filing Jul 15, 2026

Track record

Did their buys beat the typical stock?

Open-market buys79
Quarters checked 6 months later7
Beat the typical stock 3 of 7
Quarters too new to check2

3 of 7 checked quarters beat the typical stock. A past record is data, not a forecast.

Vivani Medical (VANI) Bought Jul 15, 2026 · $1000K · 793,650 shares Too new Too new. Its 6-month check uses prices as of Mar 31, 2027.
Vivani Medical (VANI) Bought Apr 15–Jun 15, 2026 · $6M · 4.76M shares Too new Too new. Its 6-month check uses prices as of Dec 31, 2026.
Vivani Medical (VANI) Bought Jan 15–Mar 15, 2026 · $7.65M · 6.53M shares Beat typical Mar 31, 2026 $1.00 → Sep 30, 2026 $1.24 · +24.0% (typical stock +1.7%)
Vivani Medical (VANI) Bought Oct 15–Dec 15, 2025 · $11.9M · 8.92M shares Behind typical Dec 31, 2025 $1.23 → Jun 30, 2026 $1.24 · +0.8% (typical stock +4.7%)
Vivani Medical (VANI) Bought Sep 15, 2025 · $2.4M · 2.07M shares Behind typical Sep 30, 2025 $1.41 → Mar 31, 2026 $1.00 · −29.1% (typical stock −3.4%)
Vivani Medical (VANI) Bought Apr 2–May 16, 2025 · $267K · 266,926 shares Behind typical Jun 30, 2025 $1.29 → Dec 31, 2025 $1.23 · −4.7% (typical stock +2.1%)
Vivani Medical (VANI) Bought Nov 8, 2024 · $5M · 3.97M shares Beat typical Dec 31, 2024 $1.16 → Jun 30, 2025 $1.29 · +11.2% (typical stock −3.4%)
Vivani Medical (VANI) Bought Jan 2–Feb 15, 2024 · $49.3K · 48,002 shares Behind typical Mar 31, 2024 $1.85 → Sep 30, 2024 $1.17 · −36.8% (typical stock +3.2%)
Vivani Medical (VANI) Bought Oct 2–Dec 22, 2023 · $406K · 426,270 shares Beat typical Dec 31, 2023 $1.02 → Jun 30, 2024 $1.26 · +23.5% (typical stock −1.2%)
Vivani Medical (VANI) Bought Sep 28, 2023 · $20.6K · 20,003 shares Not counted Not counted. We have no fund price for this stock on both Sep 30, 2023 and Mar 31, 2024.

Each row is one stock in one quarter, however many buys it took. We take the stock's price at the end of that quarter and again 6 months later, and compare it with the typical stock over the same dates. Prices are quarter-end values from funds' 13F reports (the middle value across 3 or more funds), through Sep 30, 2026. Moves past 3 times up or down, mostly stock splits, are left out. How we tested this.

Past results. This is data, not advice.

Where this data comes from. Insider trades, fund holdings, activist stakes and company results come from public SEC EDGAR filings (Forms 4, 13F, 13D/13G, 10-Q and 8-K). Congress trades come from the STOCK Act reports members file with the House Clerk and the Senate. Daily closing prices come from post-no-preference/stocks on DoltHub, a community-run database shared under CC BY-SA 4.0; the prices we show stay under that license. They are each day's close, not live or official exchange prices.

This is data, not investment advice. About StockToast · Your watchlist