Stavros G. Vizirgianakis

Stavros G. Vizirgianakis is CEO at MISONIX INC (MSON). They have made 4 open-market trades across 2 companies since 2014, most recently 2026-08-15.

CIK 0001559834

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4 open-market purchases totalling $10.7M since 2014, never a sale. Too few scored purchases to measure a record yet.

Current Position

Ticker	Shares	Value
MSON	1,649,078	$43.8M
BVS	2,781,888	$37.0M
APYX	2,196,191	$5.6M
XTNT	7,838,845	$2.2M
Total		$88.6M

Shares reported on the most recent Form 4, priced at the 2026-08-18 close.

Grade by Ticker

BMSON

1 trade

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Buy Track Record

Filings4

Only 4 discretionary filings — too few to score

Discretionary filings only. 10b5-1 plan trades, tax withholding and option exercises are excluded, and each column is one row per filing rather than per execution lot.

Volume by Type

POpen-Market Purchase

$10.7M

4 filings

MOption Exercise

$193K

3 filings

AAward/Grant

9 filings

1 filings

Companies

Trade History

4 total

XTNTBUY

$2.2M

2022-10-077d: -10.8%

Contrarian BuyFirst-Time BuyerMajor Holdings Increase (>50%)Opportunistic BuyDeep Dip Buy

•Increased holdings by 63%
•Stock up +43% in previous 3 months

MSONBUY

$98K

2020-03-127d: -19.2%

First-Time BuyerBuying the DipContrarian BuyMinimal Holdings IncreaseOpportunistic BuyTop TradeDeep Dip Buy

•2nd largest purchase, out of 3
•Last purchase was 1,234 days ago
+1 more

MSONBUY

$8.0M

2016-10-257d: +25.2%

Massive Holdings Increase (>100%)Opportunistic BuyLargest Purchase Ever

•Increased holdings by 169%
•Largest purchase ever, out of 3
+1 more

MSONBUY

$396K

2014-06-167d: -4.8%

Large Holdings IncreaseOpportunistic Buy

Ticker	Type	Traded	Filed	Price	Value	7d Stock	30d Stock	90d Stock
XTNT	BUY	2022-10-07	2022-10-11	$0.48	$2.2M	-10.8%	-8.3%	-15.8%
MSON	BUY	2020-03-12	2020-03-12	$9.84	$98K	-19.2%	+6.6%	+47.3%
MSON	BUY	2016-10-25	2016-10-26	$5.25	$8.0M	+25.2%	+50.3%	+88.6%
MSON	BUY	2014-06-16	2014-06-18	$5.70	$396K	-4.8%	-4.2%	-4.2%

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