WILLIAM K HEIDEN, a director at $MGNX, bought 50,500 shares of the company on 08-19-2025 for an estimated $76,760. This trade was reported by Quiver Quantitative using data from a recent SEC filing. This increased their holdings of this class of stock by approximately 459.1%. Following this trade, they now own 61,500 shares of this class of $MGNX stock.
$MGNX Insider Trading Activity
$MGNX insiders have traded $MGNX stock on the open market 2 times in the past 6 months. Of those trades, 2 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $MGNX stock by insiders over the last 6 months:
- WILLIAM K HEIDEN has made 2 purchases buying 100,000 shares for an estimated $150,515 and 0 sales.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$MGNX Hedge Fund Activity
We have seen 53 institutional investors add shares of $MGNX stock to their portfolio, and 88 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- BLACKROCK, INC. removed 3,095,599 shares (-63.0%) from their portfolio in Q2 2025, for an estimated $3,745,674
- ECOR1 CAPITAL, LLC added 1,602,717 shares (+inf%) to their portfolio in Q2 2025, for an estimated $1,939,287
- ROCK SPRINGS CAPITAL MANAGEMENT LP removed 1,145,214 shares (-100.0%) from their portfolio in Q2 2025, for an estimated $1,385,708
- STATE STREET CORP removed 1,109,025 shares (-78.7%) from their portfolio in Q2 2025, for an estimated $1,341,920
- SCHONFELD STRATEGIC ADVISORS LLC removed 857,505 shares (-100.0%) from their portfolio in Q1 2025, for an estimated $1,089,031
- GEODE CAPITAL MANAGEMENT, LLC removed 772,650 shares (-53.1%) from their portfolio in Q2 2025, for an estimated $934,906
- JANE STREET GROUP, LLC added 511,777 shares (+207.7%) to their portfolio in Q2 2025, for an estimated $619,250
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
$MGNX Analyst Ratings
Wall Street analysts have issued reports on $MGNX in the last several months. We have seen 2 firms issue buy ratings on the stock, and 0 firms issue sell ratings.
Here are some recent analyst ratings:
- Leerink Partners issued a "Outperform" rating on 08/15/2025
- Barclays issued a "Overweight" rating on 05/14/2025
To track analyst ratings and price targets for $MGNX, check out Quiver Quantitative's $MGNX forecast page.
$MGNX Price Targets
Multiple analysts have issued price targets for $MGNX recently. We have seen 5 analysts offer price targets for $MGNX in the last 6 months, with a median target of $3.0.
Here are some recent targets:
- An analyst from Leerink Partners set a target price of $5.0 on 08/15/2025
- Mayank Mamtani from B. Riley Securities set a target price of $3.0 on 05/20/2025
- Stephen Willey from Stifel set a target price of $5.0 on 05/14/2025
- Peter Lawson from Barclays set a target price of $3.0 on 05/14/2025
- Robert Burns from HC Wainwright & Co. set a target price of $2.0 on 03/25/2025
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
