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Stavros G. Vizirgianakis

CIK 1559834 · President and CEO · last filed 2026-06-15

Stavros G. Vizirgianakis is a President and CEO who has filed 27 SEC Form 4 insider transactions across 4 companies since 2013. The most recent filing, for APYX, was dated Jun 15, 2026. Across all open-market trades the lifetime net is +$5.2M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $48.4M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$48.42M

Companies

4

Total Filings

27

Lifetime Open-Market Net

$5.19M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
APYX Director 2,196,191 $3.86 $8.48M $0 4 2026-06-15
XTNT Director 7,515,570 $0.43 $3.20M $1.09M 6 2025-11-18
BVS Director 2,781,888 $13.21 $36.75M $0 3 2022-06-22
MISONIX INC (MSON) Delisted CEO 1,649,078 $26.54 $43.77M $4.10M 13 2021-07-02

Recent Filings

27 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-06-15 APYX Grant (A) +450,000 $0 EDGAR
2025-11-18 XTNT Grant (A) +553,797 $0 EDGAR
2025-05-19 APYX Grant (A) — $0 EDGAR
2025-01-17 APYX Grant (A) — $0 EDGAR
2024-08-19 XTNT Grant (A) +748,648 $0 EDGAR
2024-08-12 APYX Grant (A) — $0 EDGAR
2023-08-17 XTNT Grant (A) +217,770 $0 EDGAR
2022-11-17 XTNT Grant (A) +144,639 $0 EDGAR
2022-10-11 XTNT Buy (P) +2,264,861 $1.09M EDGAR
2022-08-26 XTNT Grant (A) +70,776 $0 EDGAR
Showing 1–10 of 27
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.