Form4insider filings, from the source

Insider · CIK 0001559834

Stavros G. Vizirgianakis

Files at: XTNT, APYX, MSON. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $4.0M · 1sales $0 · 0net $4.0M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesOct 24Oct 24Oct 24Oct 25Oct 25Oct 25Oct 26

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 15, 2026 AForm 4 →Aug 18, 6:09 pm EDTXtant Medical Holdings, Inc.XTNT323,275——7,838,845—
Jun 11, 2026 AForm 4 →Jun 15, 7:00 pm EDTApyx Medical CorpAPYX450,000——2,196,191—
Sep 21, 2017 MForm 4 →Sep 25, 8:01 am EDTMISONIX INCMSON7,500$6.96$52,1631,641,078— plan?
Dec 21, 2016 MForm 4 →Dec 22, 8:00 am ESTMISONIX INCMSON22,500$6.26$140,8501,633,578— plan?
Dec 15, 2016 AForm 4 →Dec 19, 9:00 am ESTMISONIX INCMSON400,000——1,611,078— plan?
Oct 25, 2016 PForm 4 →Oct 26, 8:00 am EDTMISONIX INCMSON761,469$5.25$3,999,9971,211,078+169% plan?

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 21, 2017 MForm 4 →Sep 25, 8:01 am EDTMISONIX INCMSON7,500——11,250—
Dec 21, 2016 MForm 4 →Dec 22, 8:00 am ESTMISONIX INCMSON22,500——3,750—
Feb 4, 2016 AForm 4 →Feb 8, 2:32 pm ESTMISONIX INCMSON15,000——15,000—
Feb 3, 2015 AForm 4 →Feb 5, 6:02 am ESTMISONIX INCMSON15,000——15,000—