DIAN C TAYLOR, a director at $ARTNA, sold 2,224 shares of the company on 12-19-2025 for an estimated $70,560. We received data on the trade from a recent SEC filing. This was a sale of approximately 5.2% of their shares of this class of stock. Following this trade, they now own 40,674 shares of this class of $ARTNA stock.
$ARTNA Insider Trading Activity
$ARTNA insiders have traded $ARTNA stock on the open market 4 times in the past 6 months. Of those trades, 0 have been purchases and 4 have been sales.
Here’s a breakdown of recent trading of $ARTNA stock by insiders over the last 6 months:
- JOHN M THAEDER (Senior Vice President) has made 0 purchases and 3 sales selling 3,000 shares for an estimated $99,784.
- DIAN C TAYLOR sold 2,224 shares for an estimated $70,560
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$ARTNA Hedge Fund Activity
We have seen 42 institutional investors add shares of $ARTNA stock to their portfolio, and 60 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- LEGAL & GENERAL GROUP PLC removed 142,048 shares (-100.0%) from their portfolio in Q3 2025, for an estimated $4,630,054
- HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC added 93,520 shares (+inf%) to their portfolio in Q3 2025, for an estimated $3,048,284
- PROSPERA FINANCIAL SERVICES INC added 56,890 shares (+93.9%) to their portfolio in Q3 2025, for an estimated $1,854,329
- BLACKROCK, INC. added 41,555 shares (+5.1%) to their portfolio in Q3 2025, for an estimated $1,354,485
- MILLENNIUM MANAGEMENT LLC removed 34,816 shares (-46.6%) from their portfolio in Q3 2025, for an estimated $1,134,827
- FIRST TRUST ADVISORS LP removed 30,432 shares (-100.0%) from their portfolio in Q3 2025, for an estimated $991,931
- CSM ADVISORS, LLC removed 29,870 shares (-100.0%) from their portfolio in Q3 2025, for an estimated $973,612
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
