JONATHAN M ROTHBERG, a director at $QSI, sold 26,095 shares of the company on 10-16-2025 for an estimated $80,111. We received data on the trade from a recent SEC filing. This was a sale of approximately 1.4% of their shares of this class of stock. Following this trade, they now own 1,904,866 shares of this class of $QSI stock.
$QSI Insider Trading Activity
$QSI insiders have traded $QSI stock on the open market 15 times in the past 6 months. Of those trades, 0 have been purchases and 15 have been sales.
Here’s a breakdown of recent trading of $QSI stock by insiders over the last 6 months:
- JONATHAN M ROTHBERG sold 26,095 shares for an estimated $80,111
- JEFFREY ALAN HAWKINS (President & CEO) has made 0 purchases and 3 sales selling 44,991 shares for an estimated $73,566.
- JOHN S. VIECELI (Chief Product Officer) has made 0 purchases and 3 sales selling 41,609 shares for an estimated $68,036.
- TODD C. BENNETT (Chief Commercial Officer) has made 0 purchases and 2 sales selling 36,964 shares for an estimated $61,315.
- CHRISTIAN LAPOINTE (GC & Corp. Secretary) has made 0 purchases and 3 sales selling 22,674 shares for an estimated $37,075.
- JEFFRY R. KEYES (Chief Financial Officer) has made 0 purchases and 3 sales selling 16,370 shares for an estimated $26,767.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$QSI Hedge Fund Activity
We have seen 68 institutional investors add shares of $QSI stock to their portfolio, and 53 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- VANGUARD GROUP INC added 1,776,799 shares (+25.8%) to their portfolio in Q2 2025, for an estimated $3,482,526
- BLACKROCK, INC. added 1,407,899 shares (+14.9%) to their portfolio in Q2 2025, for an estimated $2,759,482
- DEERFIELD MANAGEMENT COMPANY, L.P. removed 1,400,000 shares (-100.0%) from their portfolio in Q2 2025, for an estimated $2,744,000
- NORTHERN TRUST CORP added 1,267,338 shares (+124.0%) to their portfolio in Q2 2025, for an estimated $2,483,982
- NUVEEN, LLC added 806,984 shares (+252.9%) to their portfolio in Q2 2025, for an estimated $1,581,688
- RENAISSANCE TECHNOLOGIES LLC removed 782,556 shares (-89.8%) from their portfolio in Q2 2025, for an estimated $1,533,809
- ARK INVESTMENT MANAGEMENT LLC removed 752,765 shares (-8.6%) from their portfolio in Q2 2025, for an estimated $1,475,419
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
$QSI Analyst Ratings
Wall Street analysts have issued reports on $QSI in the last several months. We have seen 1 firms issue buy ratings on the stock, and 0 firms issue sell ratings.
Here are some recent analyst ratings:
- HC Wainwright & Co. issued a "Buy" rating on 05/19/2025
To track analyst ratings and price targets for $QSI, check out Quiver Quantitative's $QSI forecast page.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
