Diodes Incorporated
US ˙ NasdaqGS ˙ US2545431015

SecurityDIOD / Diodes Incorporated
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership333,424 shares
Latest Disclosed Value $ 22,759,522
Ameriprise Financial Inc reports 6.29% decrease in ownership of DIOD / Diodes Incorporated

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 333,424 shares of Diodes Incorporated (US:DIOD) valued at $22,759,522 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 355,807 shares of Diodes Incorporated. This represents a change in shares of -6.29% during the quarter. The current value of the position is $33,695,829 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)
2026-05-15 2026-03-31 13F DIODES COM 254543101 333,424 -22,383 -6.29 22,760 29.64 0.0010
2026-02-17 2025-12-31 13F DIODES COM 254543101 355,807 -8,029 -2.21 17,556 -9.32 0.0007
2025-11-14 2025-09-30 13F DIODES COM 254543101 363,836 -38,269 -9.52 19,360 -8.97 0.0008
2025-08-14 2025-06-30 13F DIODES COM 254543101 402,105 228,976 132.26 21,267 184.58 0.0052
2025-05-14 2025-03-31 13F DIODES COM 254543101 173,129 2,903 1.71 7,474 -28.81 0.0020
2025-02-14 2024-12-31 13F DIODES COM 254543101 170,226 5,660 3.44 10,498 -0.47 0.0027
2024-11-14 2024-09-30 13F DIODES COM 254543101 164,566 -29,231 -15.08 10,547 -24.33 0.0027
2024-08-14 2024-06-30 13F DIODES COM 254543101 193,797 -29,580 -13.24 13,940 -11.49 0.0038
2024-05-15 2024-03-31 13F DIODES COM 254543101 223,377 -143,926 -39.18 15,748 -46.75 0.0043
2024-02-14 2023-12-31 13F DIODES COM 254543101 367,303 -153,727 -29.50 29,575 -28.02 0.0089
2023-11-14 2023-09-30 13F DIODES COM 254543101 521,030 -25,973 -4.75 41,085 -18.79 0.0135
2023-08-14 2023-06-30 13F DIODES COM 254543101 547,003 -13,894 -2.48 50,593 -2.76 0.0159
2023-05-22 2023-03-31 13F/A-1 DIODES COM 254543101 560,897 21,989 4.08 52,028 26.79 0.0171
2023-05-15 2023-03-31 13F DINE BRANDS GLOBAL COM 254543101 560,897 21,989 52,028 0.0031
2023-02-14 2022-12-31 13F DIODES COM 254543101 538,908 -36,017 -6.26 41,034 9.95 0.0141
2022-11-14 2022-09-30 13F DIODES COM 254543101 574,925 -20,880 -3.50 37,320 -3.00 0.0138
2022-08-15 2022-06-30 13F DIODES COM 254543101 595,805 -38,753 -6.11 38,474 -30.30 0.0134
2022-05-16 2022-03-31 13F DIODES COM 254543101 634,558 -17,929 -2.75 55,201 -22.96 0.0163
2022-02-14 2021-12-31 13F DIODES COM 254543101 652,487 80,475 14.07 71,648 38.25 0.0198
2021-11-15 2021-09-30 13F DIODES COM 254543101 572,012 -2,421 -0.42 51,826 13.10 0.0166
2021-08-16 2021-06-30 13F DIODES COM 254543101 574,433 -1,501 -0.26 45,822 -0.35 0.0142
2021-05-17 2021-03-31 13F DIODES COM 254543101 575,934 32,313 5.94 45,981 19.99 0.0153
2021-02-12 2020-12-31 13F DIODES COM 254543101 543,621 13,632 2.57 38,321 28.08 0.0136
2020-11-16 2020-09-30 13F DIODES COM 254543101 529,989 -14,098 -2.59 29,919 8.47 0.0122
2020-08-14 2020-06-30 13F DIODES COM 254543101 544,087 -40,653 -6.95 27,584 16.09 0.0118
2020-05-15 2020-03-31 13F DIODES COM 254543101 584,740 1,304 0.22 23,760 -27.76 0.0125
2020-02-14 2019-12-31 13F DIODES COM 254543101 583,436 158,609 37.33 32,890 92.82 0.0137
2019-11-14 2019-09-30 13F DIODES COM 254543101 424,827 -112,335 -20.91 17,057 -12.69 0.0076
2019-08-14 2019-06-30 13F DIODES COM 254543101 537,162 -48,881 -8.34 19,537 -3.92 0.0088
2019-05-15 2019-03-31 13F DIODES COM 254543101 586,043 36,660 6.67 20,335 14.74 0.0094
2019-02-14 2018-12-31 13F DIODES COM 254543101 549,383 -14,657 -2.60 17,723 -5.61 0.0089
2018-11-14 2018-09-30 13F DIODES COM 254543101 564,040 20,168 3.71 18,777 0.15 0.0066
2018-08-14 2018-06-30 13F DIODES COM 254543101 543,872 32,202 6.29 18,749 20.30 0.0083
2018-05-14 2018-03-31 13F DIODES COM 254543101 511,670 35,265 7.40 15,585 14.11 0.0071
2018-02-12 2017-12-31 13F DIODES COM 254543101 476,405 -15,203 -3.09 13,658 -7.18 0.0062
2017-11-07 2017-09-30 13F DIODES COM 254543101 491,608 3,999 0.82 14,714 25.57 0.0070
2017-08-10 2017-06-30 13F DIODES COM 254543101 487,609 -108,845 -18.25 11,718 -18.31 0.0059
2017-05-05 2017-03-31 13F DIODES COM 254543101 596,454 16,987 2.93 14,344 -3.58 0.0074
2017-02-03 2016-12-31 13F DIODES COM 254543101 579,467 644 0.11 14,876 20.43 0.0081
2016-11-08 2016-09-30 13F DIODES COM 254543101 578,823 -38,404 -6.22 12,352 6.50 0.0069
2016-08-08 2016-06-30 13F DIODES COM 254543101 617,227 -263,825 -29.94 11,598 -34.51 0.0068
2016-05-12 2016-03-31 13F DIODES COM 254543101 881,052 236 0.03 17,709 -12.51 0.0106
2016-02-11 2015-12-31 13F DIODES COM 254543101 880,816 28,186 3.31 20,242 11.09 0.0119
2015-11-12 2015-09-30 13F DIODES COM 254543101 852,630 66,495 8.46 18,221 -3.87 0.0113
2015-08-13 2015-06-30 13F DIODES COM 254543101 786,135 163,212 26.20 18,954 6.54 0.0108
2015-05-14 2015-03-31 13F DIODES COM 254543101 622,923 7,105 1.15 17,791 4.79 0.0102
2015-02-13 2014-12-31 13F DIODES COM 254543101 615,818 -1,878 -0.30 16,978 14.89 0.0099
2014-11-14 2014-09-30 13F DIODES COM 254543101 617,696 -79,636 -11.42 14,777 -26.83 0.0089
2014-08-13 2014-06-30 13F DIODES COM 254543101 697,332 7,051 1.02 20,196 12.01 0.0119
2014-05-14 2014-03-31 13F DIODES COM 254543101 690,281 -1,471 -0.21 18,030 10.63 0.0108
2014-02-14 2013-12-31 13F DIODES COM 254543101 691,752 5,193 0.76 16,297 -3.12 0.0099
2013-11-14 2013-09-30 13F DIODES COM 254543101 686,559 269,551 64.64 16,821 55.32 0.0110
2013-08-14 2013-06-30 13F DIODES COM 254543101 417,008 417,008 10,830 0.0075
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.