LUKE E SIMS, the President & CEO of $GRF, bought 1,209 shares of the company on 05-18-2026 for an estimated $12,331. 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 0.4%. Following this trade, they now own 295,267 shares of this class of $GRF stock.
$GRF Insider Trading Activity
$GRF insiders have traded $GRF stock on the open market 12 times in the past 6 months. Of those trades, 12 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $GRF stock by insiders over the last 6 months:
- NEAL F. ZALENKO has made 9 purchases buying 6,097 shares for an estimated $64,935 and 0 sales.
- DONALD G TYLER has made 2 purchases buying 2,000 shares for an estimated $19,950 and 0 sales.
- LUKE E SIMS (President & CEO) purchased 1,209 shares for an estimated $12,331
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.
$GRF Hedge Fund Activity
We have seen 5 institutional investors add shares of $GRF stock to their portfolio, and 5 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- MATISSE CAPITAL removed 16,262 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $174,003
- SUSQUEHANNA INTERNATIONAL GROUP, LLP removed 3,604 shares (-20.8%) from their portfolio in Q1 2026, for an estimated $36,959
- OSAIC HOLDINGS, INC. removed 2,948 shares (-14.4%) from their portfolio in Q1 2026, for an estimated $30,231
- UBS GROUP AG removed 1,936 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $20,715
- BEACON INVESTMENT ADVISORY SERVICES, INC. added 1,400 shares (+inf%) to their portfolio in Q1 2026, for an estimated $14,357
- SIGMA INVESTMENT COUNSELORS INC added 1,390 shares (+6.4%) to their portfolio in Q1 2026, for an estimated $14,254
- RMG WEALTH MANAGEMENT LLC added 1,331 shares (+inf%) to their portfolio in Q1 2026, for an estimated $13,649
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.
$GRF Revenue
$GRF had revenues of $5.8M in Q4 2025.
You can track GRF financials on Quiver Quantitative's GRF stock page.
You can access data on GRF stock through the Quiver Quantitative API.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
