Gentex Corporation
US ˙ NasdaqGS ˙ US3719011096

SecurityGNTX / Gentex Corporation
InstitutionAssetmark, Inc
Latest Disclosed Ownership442 shares
Latest Disclosed Value $ 9,658
Assetmark, Inc reports 56.18% increase in ownership of GNTX / Gentex Corporation

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 442 shares of Gentex Corporation (US:GNTX) valued at $9,658 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 283 shares of Gentex Corporation. This represents a change in shares of 56.18% during the quarter. The current value of the position is $11,050 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-06 2026-03-31 13F GENTEX COM 371901109 442 159 56.18 10 50.00 0.0000
2026-01-23 2025-12-31 13F GENTEX COM 371901109 283 -5 -1.74 7 -25.00 0.0000
2025-11-06 2025-09-30 13F GENTEX COM 371901109 288 110 61.80 8 166.67 0.0000
2025-08-04 2025-06-30 13F GENTEX COM 371901109 178 178 4 0.0000
2024-05-07 2024-03-31 13F GENTEX COM 371901109 0 -106 -100.00 0 -100.00
2024-02-09 2023-12-31 13F GENTEX COM 371901109 106 106 3 0.0000
2023-05-05 2023-03-31 13F GENTEX COM 371901109 0 -200 -100.00 0 -100.00
2023-02-10 2022-12-31 13F GENTEX COM 371901109 200 0 0.00 5 0.00 0.0000
2022-11-01 2022-09-30 13F GENTEX COM 371901109 200 0 0.00 5 -16.67 0.0000
2022-08-03 2022-06-30 13F GENTEX CORP COM COM 371901109 200 0 0.00 6 0.00 0.0000
2022-05-13 2022-03-31 13F GENTEX CORP COM COM 371901109 200 190 1,900.00 6 0.0000
2022-02-14 2021-12-31 13F GENTEX CORP COM COM 371901109 10 -7,529 -99.87 0 -100.00
2021-11-12 2021-09-30 13F GENTEX CORP COM COM 371901109 7,539 -9,686 -56.23 249 -56.32 0.0011
2021-08-16 2021-06-30 13F GENTEX CORP COM COM 371901109 17,225 2,356 15.85 570 7.55 0.0026
2021-05-14 2021-03-31 13F GENTEX COM 371901109 14,869 -6,678 -30.99 530 -27.50 0.0027
2021-02-10 2020-12-31 13F GENTEX CORP COM COM 371901109 21,547 -10,995 -33.79 731 -12.77 0.0041
2020-11-13 2020-09-30 13F GENTEX CORP COM COM 371901109 32,542 1,670 5.41 838 5.28 0.0054
2020-08-11 2020-06-30 13F GENTEX CORP COM COM 371901109 30,872 9,929 47.41 796 71.55 0.0057
2020-05-12 2020-03-31 13F GENTEX CORP COM COM 371901109 20,943 20,717 9,166.81 464 11,500.00 0.0039
2017-09-14 2016-09-30 13F/A-1 GENTEX CORP COM COM 371901109 226 226 4 0.0001
2016-11-04 2016-09-30 13F GENTEX CORP COM COM 371901109 226 4 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.