Latest filing published 24 Jun 2025 for Dyadic International INC.
Insider track record
Closed purchases
Not enough history yet: 0 closed purchases, at least 2 are needed.
Purchases by company
Michael P. Tarnok: trading record in brief
This profile gathers the share dealings of Michael P. Tarnok across 2 companies, led by Keryx Biopharmaceuticals Inc and Dyadic International Inc. The record holds 23 filings, for trades running from 19 November 2007 to 20 June 2025.
Every open-market trade on record is a purchase: 5 purchases worth €159k, and no sale. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. The rest of the record consists of 10 share grants and 8 option exercises.
The median purchase comes to €21k.
The latest filing, published on 24 June 2025, reports an option exercise in Dyadic International Inc. The most recent open-market purchase was published on 6 May 2015, 4,204 days ago. The median gap between a trade and its publication by SEC (Form 4) is 2 days. US insiders must file a Form 4 within two business days of a trade. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Companies and markets linked to Michael P. Tarnok
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
- 10,776 sharesCommon StockSEC:0001437749-25-021101:0
- 23,585 sharesCommon StockSEC:0001437749-25-000552:0
- 18,750 shares@ US$0.9717.7% of flowCommon StockSEC:0001437749-24-036127:1
- 6,250 shares@ US$0.9738.1% of flowCommon StockSEC:0001437749-24-036127:0
- 5,625 shares@ US$1.367.2% of flowCommon StockSEC:0001437749-24-018133:1
- 16,875 shares@ US$1.3621.5% of flowCommon StockSEC:0001437749-24-018133:2
- 24,431 shares@ US$1.6738.2% of flowCommon StockSEC:0001437749-24-018133:3
- 7,500 shares@ US$1.3661.9% of flowCommon StockSEC:0001437749-24-018133:0
- 27,174 sharesCommon StockSEC:0001437749-24-000647:0
- 10,000 shares0Common StockSEC:0001209191-15-054836:0
- 10,000 shares@ US$9.73Common StockSEC:0001209191-15-039399:0Canonical exit: 4 Aug 2015 (T+90)
- 10,000 shares0Common StockSEC:0001209191-14-043967:0
- 15,000 shares0Common StockSEC:0001181431-13-036314:0
- 15,000 shares0Common StockSEC:0001144204-12-036125:0
- 17,500 shares@ US$1.55Common StockSEC:0001144204-12-020647:0Canonical exit: 4 Jul 2012 (T+90)
- 15,000 shares@ US$3.10Common StockSEC:0001144204-11-045468:0Canonical exit: 8 Nov 2011 (T+90)
- 15,000 shares0Common StockSEC:0001144204-11-040432:0
- 15,000 shares0Common StockSEC:0001144204-10-034208:0
- 25,000 shares0Common StockSEC:0001144204-09-033346:0
- 40,000 shares@ US$0.46Common StockSEC:0001144204-09-029539:0Canonical exit: 24 Aug 2009 (T+90)
- 100,000 shares0Common StockSEC:0001144204-09-023657:0
- 50,000 shares0Common StockSEC:0001144204-08-065202:0
- 1,100 shares@ US$8.71Common stockSEC:0001144204-07-063537:0Canonical exit: 17 Feb 2008 (T+90)
23 of 23 declarations
