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Companies
▲ Purchases (1 ops.)
▼ Sales (0 ops.)
Latest filing published 18 Aug 2026 for Xtant Medical Holdings, Inc.. Read the official filing
Filing timeline
BuySaleStavros G. Vizirgianakis
Insider track record
Disclosed 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.
Stavros G. Vizirgianakis: trading record in brief
Stavros G. Vizirgianakis, listed as chief executive, has filed trades across 4 companies (mainly through SEC (Form 4)), most often in Xtant Medical Holdings, Inc., Bioventus Inc. and Apyx Medical Corp. In total, 11 filings cover trades dated from 29 October 2021 to 15 August 2026.
The open-market record is one-sided, with 1 purchase worth €1.1M and not one sale. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Besides market trades, the filings include 8 share grants and 1 option exercise.
The newest entry dates from 18 August 2026: a share grant, in Xtant Medical Holdings, Inc. The latest purchase dates back some time: it was published 1,468 days ago, on 11 October 2022. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 4 days. US insiders must file a Form 4 within two business days of a trade. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Companies and markets linked to Stavros G. Vizirgianakis
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
