Gentex Corporation
DE ˙ DB ˙ US3719011096
21,30 € ↓ -0,02 (-0,09%)
2026-06-05
DEL PRIS
SecurityDE:GTX / Gentex Corporation
InstitutionS.A. Mason LLC
Latest Disclosed Ownership14,500 shares
Latest Disclosed Value $ 316,825
S.A. Mason LLC ownership in GTX / Gentex Corporation

On April 27, 2026 - S.A. Mason LLC filed a 13F-HR form disclosing ownership of 14,500 shares of Gentex Corporation (DE:GTX) valued at $269,700 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 14,500 shares of Gentex Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $308,850 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)
2026-04-27 2026-03-31 13F Gentex COM 371901109 14,500 0 0.00 317 -6.23 0.1189
2026-01-29 2025-12-31 13F Gentex COM 371901109 14,500 -300 -2.03 337 -19.38 0.1334
2025-10-14 2025-09-30 13F Gentex COM 371901109 14,800 -5,232 -26.12 419 -5.00 0.1849
2025-07-14 2025-06-30 13F Gentex COM 371901109 20,032 0 0.00 441 -5.58 0.2132
2025-04-23 2025-03-31 13F Gentex COM 371901109 20,032 -5,906 -22.77 467 -37.45 0.2466
2025-01-24 2024-12-31 13F Gentex COM 371901109 25,938 -99 -0.38 745 -3.62 0.3914
2024-10-25 2024-09-30 13F Gentex COM 371901109 26,037 801 3.17 773 -9.06 0.4098
2024-07-10 2024-06-30 13F Gentex COM 371901109 25,236 3,700 17.18 851 9.40 0.4838
2024-04-15 2024-03-31 13F Gentex COM 371901109 21,536 4,904 29.49 778 43.09 0.4676
2024-01-17 2023-12-31 13F Gentex COM 371901109 16,632 0 0.00 543 0.37 0.3643
2023-10-13 2023-09-30 13F Gentex COM 371901109 16,632 -9,160 -35.51 541 -25.07 0.3902
2023-07-20 2023-06-30 13F Gentex COM 371901109 25,792 0 0.00 723 0.00 0.5250
2023-05-10 2023-03-31 13F Gentex COM 371901109 25,792 1,700 7.06 723 10.06 0.5250
2023-01-10 2022-12-31 13F Gentex COM 371901109 24,092 3,070 14.60 657 30.94 0.4948
2022-10-20 2022-09-30 13F Gentex COM 371901109 21,022 0 0.00 501 -14.80 0.3963
2022-07-07 2022-06-30 13F Gentex COM 371901109 21,022 -1,000 -4.54 588 -8.41 0.4295
2022-05-12 2022-03-31 13F Gentex COM 371901109 22,022 8,960 68.60 642 41.10 0.4004
2022-01-04 2021-12-31 13F Gentex COM 371901109 13,062 0 0.00 455 5.57 0.2739
2021-10-12 2021-09-30 13F Gentex COM 371901109 13,062 0 0.00 431 -0.23 0.2838
2021-07-07 2021-06-30 13F Gentex COM 371901109 13,062 2 0.02 432 -7.30 0.2972
2021-04-20 2021-03-31 13F Gentex COM 371901109 13,060 0 0.00 466 5.19 0.3481
2021-02-02 2020-12-31 13F Gentex COM 371901109 13,060 0 0.00 443 31.85 0.3688
2020-10-21 2020-09-30 13F Gentex COM 371901109 13,060 0 0.00 336 -0.30 0.3196
2020-07-27 2020-06-30 13F Gentex COM 371901109 13,060 328 2.58 337 19.50 0.3551
2020-05-14 2020-03-31 13F Gentex COM 371901109 12,732 -1,102 -7.97 282 -29.68 0.3423
2020-01-29 2019-12-31 13F Gentex COM 371901109 13,834 13,834 401 0.3821
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.