$CSTL stock has now risen 9% today, according to our price data from Polygon. There has been approximately $9,843,599 of trading volume.
Here is what we see in our data on $CSTL (you can track the company live on Quiver's $CSTL stock page):
$CSTL Insider Trading Activity
$CSTL insiders have traded $CSTL stock on the open market 95 times in the past 6 months. Of those trades, 0 have been purchases and 95 have been sales.
Here’s a breakdown of recent trading of $CSTL stock by insiders over the last 6 months:
- DEREK J MAETZOLD (Pres. & Chief Exec. Officer) has made 0 purchases and 86 sales selling 148,589 shares for an estimated $3,784,068.
- TOBIN W JUVENAL (Chief Commercial Officer) sold 20,863 shares for an estimated $526,582
- KRISTEN M OELSCHLAGER (Chief Operating Officer) has made 0 purchases and 3 sales selling 17,173 shares for an estimated $387,487.
- FRANK STOKES (Chief Financial Officer) has made 0 purchases and 3 sales selling 13,001 shares for an estimated $359,980.
- G BRADLEY COLE has made 0 purchases and 2 sales selling 7,403 shares for an estimated $210,727.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.
$CSTL Hedge Fund Activity
We have seen 94 institutional investors add shares of $CSTL stock to their portfolio, and 83 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- RTW INVESTMENTS, LP added 643,098 shares (+30.4%) to their portfolio in Q1 2026, for an estimated $15,788,055
- PORTOLAN CAPITAL MANAGEMENT, LLC removed 379,180 shares (-21.9%) from their portfolio in Q1 2026, for an estimated $9,308,869
- QUBE RESEARCH & TECHNOLOGIES LTD added 324,065 shares (+137.6%) to their portfolio in Q1 2026, for an estimated $7,955,795
- CITADEL ADVISORS LLC removed 245,379 shares (-67.0%) from their portfolio in Q1 2026, for an estimated $6,024,054
- MORGAN STANLEY added 225,357 shares (+110.7%) to their portfolio in Q1 2026, for an estimated $5,532,514
- SG AMERICAS SECURITIES, LLC added 223,624 shares (+1051.8%) to their portfolio in Q1 2026, for an estimated $5,489,969
- WELLINGTON MANAGEMENT GROUP LLP removed 218,560 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $5,365,648
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.
$CSTL Revenue
$CSTL had revenues of $103.5M in Q2 2026. This is an increase of 20.14% from the same period in the prior year.
You can track CSTL financials on Quiver Quantitative's CSTL stock page.
You can access data on CSTL stock through the Quiver Quantitative API.
$CSTL Analyst Ratings
Wall Street analysts have issued reports on $CSTL 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:
- BTIG issued a "Buy" rating on 05/13/2026
To track analyst ratings and price targets for $CSTL, check out Quiver Quantitative's $CSTL forecast page.
$CSTL Price Targets
Multiple analysts have issued price targets for $CSTL recently. We have seen 4 analysts offer price targets for $CSTL in the last 6 months, with a median target of $40.0.
Here are some recent targets:
- Max Masucci from Roth Capital set a target price of $40.0 on 06/25/2026
- Mark Massaro from BTIG set a target price of $40.0 on 05/13/2026
- Catherine Ramsey from Baird set a target price of $43.0 on 05/07/2026
- Kyle Mikson from Canaccord Genuity set a target price of $40.0 on 04/20/2026
You can track data on $CSTL 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.
