$QSI stock has now fallen 12% today, according to our price data from Polygon. There has been approximately $6,512,266 of trading volume.
It has been the 218th most-searched ticker on Quiver Quantitative over the last day, out of 12,588 total tickers searched.
Here is what we see in our data on $QSI (you can track the company live on Quiver's $QSI stock page):
$QSI Insider Trading Activity
$QSI insiders have traded $QSI stock on the open market 18 times in the past 6 months. Of those trades, 2 have been purchases and 16 have been sales.
Here’s a breakdown of recent trading of $QSI stock by insiders over the last 6 months:
- CHARLES R. KUMMETH purchased 500,000 shares for an estimated $459,800
- JEFFREY ALAN HAWKINS (President & CEO) has made 0 purchases and 5 sales selling 214,908 shares for an estimated $217,697.
- PAULA DOWDY purchased 109,890 shares for an estimated $104,450
- JEFFRY R. KEYES (Chief Financial Officer) has made 0 purchases and 5 sales selling 92,045 shares for an estimated $93,069.
- JOHN S. VIECELI (Chief Product Officer) has made 0 purchases and 3 sales selling 43,924 shares for an estimated $46,395.
- CHRISTIAN LAPOINTE (GC & Corp. Secretary) has made 0 purchases and 3 sales selling 23,910 shares for an estimated $25,261.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$QSI Hedge Fund Activity
We have seen 77 institutional investors add shares of $QSI stock to their portfolio, and 55 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- MILLENNIUM MANAGEMENT LLC removed 2,478,168 shares (-92.8%) from their portfolio in Q4 2025, for an estimated $2,725,984
- CITADEL ADVISORS LLC added 2,269,050 shares (+557.4%) to their portfolio in Q4 2025, for an estimated $2,495,955
- BLACKROCK, INC. added 1,732,384 shares (+15.3%) to their portfolio in Q4 2025, for an estimated $1,905,622
- UBS GROUP AG added 944,653 shares (+187.1%) to their portfolio in Q4 2025, for an estimated $1,039,118
- VANGUARD GROUP INC added 892,515 shares (+10.2%) to their portfolio in Q4 2025, for an estimated $981,766
- TWO SIGMA INVESTMENTS, LP added 868,329 shares (+168.3%) to their portfolio in Q4 2025, for an estimated $955,161
- STATE STREET CORP added 745,231 shares (+26.5%) to their portfolio in Q4 2025, for an estimated $819,754
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
You can track data on $QSI on Quiver Quantitative.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.
