Diodes Incorporated
US ˙ NasdaqGS ˙ US2545431015

SecurityDIOD / Diodes Incorporated
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership2,364,940 shares
Ownership 5.10%
Dimensional Fund Advisors Lp ownership in DIOD / Diodes Incorporated

2025-04-15 - Dimensional Fund Advisors Lp has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 2,364,940 shares of Diodes Incorporated (US:DIOD). This represents 5.1 percent ownership of the company. In their previous filing dated 2022-02-08 , Dimensional Fund Advisors Lp had reported owning 2,146,690 shares, indicating an increase of 10.17 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2025-04-15 2025-04-15 13G 2,146,690 2,364,940 10.17 5.10 6.25
2022-02-08 2022-02-08 13G/A 2,860,798 2,146,690 -24.96 4.80 -12.73
2021-02-12 2021-02-12 13G/A 3,525,177 2,860,798 -18.85 5.50 -20.41
2020-02-12 2020-02-12 13G/A 4,190,553 3,525,177 -15.88 6.91 -17.15
2019-02-08 2019-02-08 13G/A 3,617,794 4,190,553 15.83 8.34 13.78
2018-02-09 2018-02-09 13G/A 2,767,087 3,617,794 30.74 7.33 29.51
2017-02-09 2017-02-09 13G 2,767,087 5.66

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-07 2026-03-31 13F DIODES COM 254543101 2,436,359 53,934 2.26 166,294 41.47 0.0074
2026-02-12 2025-12-31 13F DIODES COM 254543101 2,382,425 -48,510 -2.00 117,550 -9.12 0.0247
2025-11-12 2025-09-30 13F DIODES COM 254543101 2,430,935 4,476 0.18 129,348 0.79 0.0278
2025-08-12 2025-06-30 13F DIODES COM 254543101 2,426,459 61,519 2.60 128,336 25.71 0.0297
2025-05-13 2025-03-31 13F DIODES COM 254543101 2,364,940 126,373 5.65 102,093 -26.05 0.0254
2025-02-13 2024-12-31 13F DIODES COM 254543101 2,238,567 168,545 8.14 138,053 4.06 0.0332
2024-11-07 2024-09-30 13F DIODES COM 254543101 2,070,022 156,740 8.19 132,666 -3.60 0.0322
2024-08-09 2024-06-30 13F DIODES COM 254543101 1,913,282 141,610 7.99 137,620 10.18 0.0359
2024-05-10 2024-03-31 13F DIODES COM 254543101 1,771,672 62,374 3.65 124,903 -9.25 0.0338
2024-02-07 2023-12-31 13F DIODES COM 254543101 1,709,298 43,941 2.64 137,635 4.83 0.0402
2023-11-09 2023-09-30 13F DIODES COM 254543101 1,665,357 -52,769 -3.07 131,298 -17.37 0.0431
2023-08-09 2023-06-30 13F DIODES COM 254543101 1,718,126 -167,472 -8.88 158,908 -9.15 0.0506
2023-05-12 2023-03-31 13F DIODES COM 254543101 1,885,598 -61,042 -3.14 174,906 118,079.73 0.0589
2023-02-09 2022-12-31 13F DIODES COM 254543101 1,946,640 -92,174 -4.52 148 -99.89 0.0438
2022-11-10 2022-09-30 13F DIODES COM 254543101 2,038,814 1,489 0.07 132,342 0.60 0.0508
2022-08-12 2022-06-30 13F DIODES COM 254543101 2,037,325 4,652 0.23 131,549 -25.61 0.0472
2022-05-13 2022-03-31 13F DIODES COM 254543101 2,032,673 -113,820 -5.30 176,830 -24.98 0.0545
2022-02-09 2021-12-31 13F DIODES COM 254543101 2,146,493 -67,461 -3.05 235,703 17.52 0.0713
2021-11-12 2021-09-30 13F DIODES COM 254543101 2,213,954 -145,946 -6.18 200,565 6.54 0.0646
2021-08-12 2021-06-30 13F DIODES COM 254543101 2,359,900 -201,538 -7.87 188,248 -8.09 0.0596
2021-05-14 2021-03-31 13F DIODES COM 254543101 2,561,438 -299,360 -10.46 204,809 1.55 0.0677
2021-03-08 2020-12-31 13F/A-2 DIODES COM 254543101 2,860,798 -209,823 -6.83 201,684 16.36 0.0728
2021-02-11 2020-12-31 13F DIODES COM 254543101 2,860,798 -209,823 201,684 72,837.5407
2020-11-12 2020-09-30 13F DIODES COM 254543101 3,070,621 -163,756 -5.06 173,331 5.70 0.0735
2020-08-13 2020-06-30 13F DIODES COM 254543101 3,234,377 -132,826 -3.94 163,978 19.85 0.0721
2020-05-14 2020-03-31 13F DIODES COM 254543101 3,367,203 -157,974 -4.48 136,821 -31.15 0.0713
2020-02-14 2019-12-31 13F DIODES COM 254543101 3,525,177 -187,663 -5.05 198,712 33.30 0.0724
2019-11-12 2019-09-30 13F DIODES COM 254543101 3,712,840 -81,309 -2.14 149,069 8.03 0.0579
2019-08-13 2019-06-30 13F DIODES COM 254543101 3,794,149 -185,615 -4.66 137,991 -0.08 0.0536
2019-08-12 2019-03-31 13F/A-2 DIODES COM 254543101 3,979,764 -210,789 -5.03 138,099 2.15 0.0550
2019-05-10 2019-03-31 13F DIODES COM 254543101 3,979,764 -210,789 138,099
2019-02-26 2018-12-31 13F/A-1 DIODES COM 254543101 4,190,553 134,372 3.31 135,187 0.12 0.0612
2019-02-13 2018-12-31 13F DIODES COM 254543101 4,190,553 134,372 135,187
2018-11-13 2018-09-30 13F DIODES COM 254543101 4,056,181 87,307 2.20 135,030 -1.30 0.0514
2018-08-10 2018-06-30 13F DIODES COM 254543101 3,968,874 163,479 4.30 136,808 18.03 0.0545
2018-05-11 2018-03-31 13F DIODES COM 254543101 3,805,395 187,601 5.19 115,912 11.75 0.0483
2018-02-12 2017-12-31 13F DIODES COM 254543101 3,617,794 142,220 4.09 103,723 -0.29 0.0430
2017-11-13 2017-09-30 13F DIODES COM 254543101 3,475,574 227,672 7.01 104,023 33.28 0.0455
2017-08-11 2017-06-30 13F DIODES COM 254543101 3,247,902 261,522 8.76 78,048 8.67 0.0360
2017-05-12 2017-03-31 13F DIODES COM 254543101 2,986,380 219,293 7.93 71,822 1.11 0.0343
2017-02-09 2016-12-31 13F DIODES COM 254543101 2,767,087 217,612 8.54 71,033 30.56 0.0355
2016-11-10 2016-09-30 13F DIODES COM 254543101 2,549,475 61,558 2.47 54,405 16.38 0.0294
2016-08-09 2016-06-30 13F DIODES COM 254543101 2,487,917 190,821 8.31 46,746 1.24 0.0269
2016-05-13 2016-03-31 13F DIODES COM 254543101 2,297,096 235,422 11.42 46,172 -2.54 0.0276
2016-02-10 2015-12-31 13F DIODES COM 254543101 2,061,674 130,814 6.77 47,377 14.82 0.0295
2015-11-13 2015-09-30 13F DIODES COM 254543101 1,930,860 20,580 1.08 41,263 -10.41 0.0271
2015-08-14 2015-06-30 13F DIODES COM 254543101 1,910,280 124,914 7.00 46,057 -9.68 0.0282
2015-05-14 2015-03-31 13F DIODES COM 254543101 1,785,366 71,104 4.15 50,991 7.89 0.0322
2015-02-06 2014-12-31 13F DIODES COM 254543101 1,714,262 80,828 4.95 47,262 20.96 0.0310
2014-11-13 2014-09-30 13F DIODES COM 254543101 1,633,434 115,330 7.60 39,074 -11.12 0.0277
2014-08-08 2014-06-30 13F DIODES COM 254543101 1,518,104 222,343 17.16 43,964 29.90 0.0306
2014-05-14 2014-03-31 13F DIODES COM 254543101 1,295,761 57,789 4.67 33,844 16.04 0.0253
2014-02-12 2013-12-31 13F DIODES COM 254543101 1,237,972 118,139 10.55 29,166 6.31 0.0227
2013-11-13 2013-09-30 13F DIODES COM 254543101 1,119,833 93,078 9.07 27,436 2.89 0.0237
2013-08-15 2013-06-30 13F DIODES COM 254543101 1,026,755 1,026,755 26,665 0.0251
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.