InsidersTradesSigma
Total declarations
Companies
▲ Purchases (1 ops.)
▼ Sales (0 ops.)
Insider track record
CEODisclosed buys
1
Disclosed sells
0
T+90 hit rate
100%
T+90 mean return
+12.7%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
No signal scores available.
Discover the detailed record of transactions filed by Vizirgianakis Stavros G., Chairman & CEO. Officer active across 4 companies, notably MISONIX INC. Cumulatively, 11 reports have been published. Split: 1 buy · 0 sell. Total volume traded: €1.1m. History available since 16 June 2022. The latest transaction was filed on 15 August 2026 (Attribution). Regulator: SEC (Form 4). All data is openly available.
Companies and markets linked to Vizirgianakis Stavros G.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations11 total
323,275 shares0Common StockSEC:0001559834-26-000001:0
450,000 sharesRestricted Stock UnitsSEC:0001493152-26-028771:0
553,797 shares0Common StockSEC:0001559834-25-000006:0
243,243 shares0Common StockSEC:0001235802-24-000071:0
217,770 shares0Common StockSEC:0001235802-23-000094:0
144,639 shares0Common Stock, $0.000001 par valueSEC:0001235802-22-000122:0
2,264,861 shares@ US$0.48100.0% of flowCommon Stock, $0.000001 par valueSEC:0001235802-22-000113:0
Canonical exit: 5 Jan 2023 (T+90)
70,776 shares0Common Stock, $0.000001 par valueSEC:0001235802-22-000107:0
965 shares0Class A common stockSEC:0000899243-22-023647:0
2,780,923 sharesClass A Common StockSEC:0000899243-22-015851:0
2,136,478 sharesCommon StockSEC:0001493152-21-030853:0
11 of 11 declarations
About Vizirgianakis Stavros G.
Vizirgianakis Stavros G. is President and CEO. He is associated with Xtant Medical Holdings, Inc., Bioventus Inc., Apyx Medical Corp and MISONIX INC. The 10 filings on record range from 2021-12-08 to 2026-06-15, and the buy transactions observed in this recent sample total EUR 1110561, with attribution as the dominant transaction nature.
