Diodes Incorporated
US ˙ NasdaqGS ˙ US2545431015

SecurityDIOD / Diodes Incorporated
InstitutionRhumbline Advisers
Latest Disclosed Ownership140,098 shares
Latest Disclosed Value $ 9,563,064
Rhumbline Advisers reports 1.28% increase in ownership of DIOD / Diodes Incorporated

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 140,098 shares of Diodes Incorporated (US:DIOD) valued at $9,563,089 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 138,325 shares of Diodes Incorporated. This represents a change in shares of 1.28% during the quarter. The current value of the position is $14,158,304 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)
2026-05-12 2026-03-31 13F DIODES INC COM COM 254543101 140,098 1,773 1.28 9,563 40.14 0.0082
2026-02-13 2025-12-31 13F DIODES INC COM COM 254543101 138,325 -8,426 -5.74 6,825 -12.60 0.0055
2025-11-06 2025-09-30 13F DIODES INC COM COM 254543101 146,751 436 0.30 7,809 0.90 0.0063
2025-08-12 2025-06-30 13F DIODES INC COM COM 254543101 146,315 10,744 7.92 7,739 32.23 0.0066
2025-05-29 2025-03-31 13F/A-1 DIODES INC COM COM 254543101 135,571 -2,897 -2.09 5,853 -31.47 0.0055
2025-04-08 2025-03-31 13F DIODES INC COM COM 254543101 135,571 -2,897 5,853 0.0055
2025-05-29 2024-12-31 13F/A-1 DIODES INC COM COM 254543101 138,468 838 0.61 8,539 -3.19 0.0076
2025-01-30 2024-12-31 13F DIODES INC COM COM 254543101 138,468 838 8,539 0.0076
2024-11-12 2024-09-30 13F DIODES INC COM COM 254543101 137,630 1,375 1.01 8,821 -10.00 0.0080
2024-08-01 2024-06-30 13F DIODES INC COM COM 254543101 136,255 3,198 2.40 9,801 4.48 0.0092
2024-05-09 2024-03-31 13F DIODES INC COM COM 254543101 133,057 400 0.30 9,381 -12.18 0.0090
2024-02-08 2023-12-31 13F DIODES INC COM COM 254543101 132,657 2,142 1.64 10,682 3.81 0.0112
2023-11-09 2023-09-30 13F DIODES INC COM COM 254543101 130,515 -976 -0.74 10,290 -15.39 0.0119
2023-08-08 2023-06-30 13F DIODES INC COM COM 254543101 131,491 -1,420 -1.07 12,162 101,241.67 0.0136
2023-05-11 2023-03-31 13F DIODES INC COM COM 254543101 132,911 7,540 6.01 12 -99.87 0.0152
2023-02-14 2022-12-31 13F DIODES INC COM COM 254543101 125,371 2,039 1.65 9,546 19.25 0.0128
2022-11-10 2022-09-30 13F DIODES INC COM COM 254543101 123,332 5,082 4.30 8,005 4.85 0.0119
2022-08-11 2022-06-30 13F DIODES INC COM COM 254543101 118,250 7,106 6.39 7,635 -21.03 0.0111
2022-05-12 2022-03-31 13F DIODES INC COM COM 254543101 111,144 5,201 4.91 9,668 -16.90 0.0124
2022-02-10 2021-12-31 13F DIODES INC COM COM 254543101 105,943 -430 -0.40 11,634 20.73 0.0143
2021-11-12 2021-09-30 13F DIODES INC COM COM 254543101 106,373 -13,640 -11.37 9,636 0.66 0.0130
2021-08-05 2021-06-30 13F DIODES INC COM COM 254543101 120,013 -14,253 -10.62 9,573 -10.70 0.0126
2021-05-06 2021-03-31 13F DIODES INC COM COM 254543101 134,266 1,423 1.07 10,720 14.47 0.0146
2021-02-10 2020-12-31 13F DIODES INC COM COM 254543101 132,843 7,672 6.13 9,365 32.54 0.0129
2020-11-12 2020-09-30 13F DIODES INC COM COM 254543101 125,171 -12,695 -9.21 7,066 1.09 0.0111
2020-08-13 2020-06-30 13F DIODES INC COM COM 254543101 137,866 -8,338 -5.70 6,990 17.66 0.0117
2020-05-06 2020-03-31 13F DIODES INC COM COM 254543101 146,204 6,284 4.49 5,941 -24.67 0.0125
2020-02-05 2019-12-31 13F DIODES INC COM COM 254543101 139,920 8,672 6.61 7,887 49.66 0.0132
2019-10-23 2019-09-30 13F DIODES INC COM COM 254543101 131,248 8,482 6.91 5,270 18.03 0.0096
2019-08-14 2019-06-30 13F DIODES INC COM COM 254543101 122,766 2,940 2.45 4,465 7.38 0.0084
2019-05-01 2019-03-31 13F DIODES INC COM COM 254543101 119,826 2,733 2.33 4,158 10.09 0.0081
2019-01-31 2018-12-31 13F DIODES INC COM COM 254543101 117,093 20,928 21.76 3,777 17.99 0.0082
2018-11-07 2018-09-30 13F DIODES INC COM COM 254543101 96,165 480 0.50 3,201 -2.94 0.0062
2018-08-06 2018-06-30 13F DIODES INC COM COM 254543101 95,685 2,886 3.11 3,298 16.66 0.0067
2018-05-02 2018-03-31 13F DIODES INC COM COM 254543101 92,799 2,011 2.22 2,827 8.61 0.0059
2018-02-09 2017-12-31 13F DIODES INC COM COM 254543101 90,788 11,967 15.18 2,603 10.34 0.0053
2017-11-06 2017-09-30 13F DIODES INC COM COM 254543101 78,821 1,434 1.85 2,359 26.83 0.0051
2017-08-02 2017-06-30 13F DIODES INC COM COM 254543101 77,387 -439 -0.56 1,860 -0.64 0.0042
2017-05-02 2017-03-31 13F DIODES INC COM COM 254543101 77,826 20,658 36.14 1,872 27.52 0.0044
2017-01-27 2016-12-31 13F DIODES INC COM COM 254543101 57,168 -779 -1.34 1,468 18.67 0.0037
2016-11-08 2016-09-30 13F DIODES INC COM COM 254543101 57,947 2,645 4.78 1,237 19.06 0.0034
2016-08-11 2016-06-30 13F DIODES INC COM COM 254543101 55,302 -11,860 -17.66 1,039 -23.04 0.0031
2016-05-02 2016-03-31 13F DIODES INC USD.66 COM 254543101 67,162 6,025 9.85 1,350 -3.91 0.0042
2016-02-03 2015-12-31 13F DIODES INC USD.66 COM 254543101 61,137 2,505 4.27 1,405 12.13 0.0045
2015-11-04 2015-09-30 13F DIODES INC USD.66 COM 254543101 58,632 -279 -0.47 1,253 -11.76 0.0043
2015-08-04 2015-06-30 13F DIODES INC USD.66 COM 254543101 58,911 8,275 16.34 1,420 -1.80 0.0045
2015-05-12 2015-03-31 13F DIODES INC USD.66 COM 254543101 50,636 4,160 8.95 1,446 12.88 0.0042
2015-02-06 2014-12-31 13F DIODES INC USD.66 COM 254543101 46,476 -1,390 -2.90 1,281 11.88 0.0037
2014-11-12 2014-09-30 13F DIODES INC USD.66 COM 254543101 47,866 -120 -0.25 1,145 -17.63 0.0034
2014-08-06 2014-06-30 13F DIODES INC USD.66 COM 254543101 47,986 782 1.66 1,390 12.73 0.0041
2014-05-06 2014-03-31 13F DIODES INC USD.66 COM 254543101 47,204 -1,850 -3.77 1,233 6.66 0.0037
2014-02-03 2013-12-31 13F DIODES INC USD.66 COM 254543101 49,054 -710 -1.43 1,156 -5.17 0.0034
2013-11-05 2013-09-30 13F DIODES INC USD.66 COM 254543101 49,764 -198 -0.40 1,219 -6.09 0.0038
2013-08-07 2013-06-30 13F DIODES INC USD.66 COM 254543101 49,962 49,962 1,298 0.0042
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.