Gentex Corporation (GNTX) Insider Trading
Over the last 3 months, GNTX insiders made 0 open-market buys and 4 sales, a net sale of -$631K (SEC Form 4). Over the last 6 months, 401 institutions increased and 369 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
4
Net (3m)
-$631.5K
Insider trades by month Buys Sells
Feb
May
May
Feb
Apr
May
Context3-month price +11.3%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 22, 2026 | WALKER BRIAN Cdirector | Grant | 5,626 | — |
| May 22, 2026 | DEUR GARTHdirector | Grant | 5,626 | — |
| May 22, 2026 | Zang Lingdirector | Grant | 5,626 | — |
| May 22, 2026 | Starkoff Kathleendirector | Grant | 5,626 | — |
| May 22, 2026 | BROWN LESLIE Ldirector | Grant | 5,626 | — |
| May 22, 2026 | Schaum Richard Odirector | Grant | 5,626 | — |
| May 22, 2026 | KENNEDY JOHN Cdirector | Grant | 5,626 | — |
| May 22, 2026 | Pink Billydirector | Grant | 5,626 | — |
| May 15, 2026 | ANDERSON JOSEPH B JRdirector | Sell | 5,939 | $22.98 |
| May 15, 2026 | WALKER BRIAN Cdirector | Sell | 5,939 | $22.98 |
| May 5, 2026 | BROWN LESLIE Ldirector | Sell | 10,782 | $22.85 |
| May 5, 2026 | BROWN LESLIE Ldirector | Option | 7,000 | $15.74 |
| Apr 30, 2026 | Schaum Richard Odirector | Sell | 4,815 | $23.31 |
| Apr 30, 2026 | Schaum Richard Odirector | Option | 7,000 | $15.74 |
| Feb 19, 2026 | Ryan Scott Pofficer: General Counsel | Tax | 2,907 | $24.89 |
| Feb 19, 2026 | Boehm Neilofficer: Chief Technology Officer | Sell | 8,916 | $24.82 |
| Feb 19, 2026 | Nash Kevin Cofficer: Chief Financial Officer | Grant | 13,880 | — |
| Feb 19, 2026 | Chiodo Matthewofficer: Vice President of Sales | Grant | 12,047 | — |
| Feb 19, 2026 | Downing Steven Rofficer: President and CEO | Tax | 54,314 | $24.89 |
| Feb 19, 2026 | Boehm Neilofficer: Chief Technology Officer | Tax | 3,608 | $24.89 |
| Feb 19, 2026 | Chiodo Matthewofficer: Vice President of Sales | Tax | 3,187 | $24.89 |
| Feb 19, 2026 | Nash Kevin Cofficer: Chief Financial Officer | Sell | 5,568 | $24.98 |
| Feb 19, 2026 | Boehm Neilofficer: Chief Technology Officer | Sell | 2,332 | $24.82 |
| Feb 19, 2026 | Nash Kevin Cofficer: Chief Financial Officer | Tax | 4,306 | $24.89 |
| Feb 19, 2026 | Downing Steven Rofficer: President and CEO | Grant | 43,492 | — |
| Feb 19, 2026 | Ryan Scott Pofficer: General Counsel | Grant | 11,000 | — |
| Feb 19, 2026 | Chiodo Matthewofficer: Vice President of Sales | Grant | 28,269 | — |
| Feb 19, 2026 | Chiodo Matthewofficer: Vice President of Sales | Tax | 12,564 | $24.89 |
| Feb 19, 2026 | Nash Kevin Cofficer: Chief Financial Officer | Grant | 38,181 | — |
| Feb 19, 2026 | Ryan Scott Pofficer: General Counsel | Grant | 25,782 | — |
Source: GNTX SEC Form 4 filings, latest May 22, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their GNTX positions over the last 6 months (SEC Form 13F).
Increased
401
New positions
130
Reduced
369
Sold out
152
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD GROUP INC | Reduced | 21.6M | Jan 29, 2026 |
| BLACKROCK, INC. | Increased | 21.3M | May 13, 2026 |
| BLACKROCK, INC. | Reduced | 20.5M | Feb 12, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 10.6M | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 10.3M | May 8, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 9.8M | Feb 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 9.7M | May 15, 2026 |
| ARIEL INVESTMENTS, LLC | Increased | 8.3M | May 14, 2026 |
| ARIEL INVESTMENTS, LLC | Increased | 7.9M | Feb 13, 2026 |
| BANK OF MONTREAL /CAN/ | Increased | 7.7M | Feb 12, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 7.5M | May 7, 2026 |
| BANK OF MONTREAL /CAN/ | Reduced | 7.4M | May 13, 2026 |
| FULLER & THALER ASSET MANAGEMENT, INC. | Increased | 7.1M | May 14, 2026 |
| STATE STREET CORP | Increased | 7.1M | May 15, 2026 |
| STATE STREET CORP | Reduced | 7.1M | Feb 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.