Advanced Energy Industries, Inc.
US ˙ NasdaqGS ˙ US0079731008

SecurityAEIS / Advanced Energy Industries, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership203,463 shares
Latest Disclosed Value $ 42,599,044
Sei Investments Co reports 12.81% decrease in ownership of AEIS / Advanced Energy Industries, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 203,463 shares of Advanced Energy Industries, Inc. (US:AEIS) valued at $42,599,048 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 233,358 shares of Advanced Energy Industries, Inc.. This represents a change in shares of -12.81% during the quarter. The current value of the position is $65,295,346 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)
2026-02-13 2025-12-31 13F ADVANCED ENERGY INDS COM 007973100 203,463 -29,895 -12.81 42,599 7.29 0.0420
2025-11-13 2025-09-30 13F ADVANCED ENERGY INDS COM 007973100 233,358 -30,749 -11.64 39,703 13.46 0.0427
2025-08-14 2025-06-30 13F ADVANCED ENERGY INDS COM 007973100 264,107 23,608 9.82 34,994 52.67 0.0406
2025-05-14 2025-03-31 13F/A-1 ADVANCED ENERGY INDS COM 007973100 240,499 33,827 16.37 22,922 -4.08 0.0295
2025-05-13 2025-03-31 13F ADVANCED ENERGY INDS COM 007973100 206,654 -18 23,888 0.0260
2025-02-11 2024-12-31 13F ADVANCED ENERGY INDS COM 007973100 206,672 1,451 0.71 23,897 10.65 0.0307
2024-11-12 2024-09-30 13F ADVANCED ENERGY INDS COM 007973100 205,221 -17,066 -7.68 21,597 -10.66 0.0280
2024-08-13 2024-06-30 13F ADVANCED ENERGY INDS COM 007973100 222,287 -2,361 -1.05 24,176 5.53 0.0343
2024-05-07 2024-03-31 13F ADVANCED ENERGY INDS COM 007973100 224,648 -7,084 -3.06 22,910 -9.24 0.0336
2024-02-14 2023-12-31 13F ADVANCED ENERGY INDS COM 007973100 231,732 13,779 6.32 25,240 12.30 0.0405
2023-11-14 2023-09-30 13F ADVANCED ENERGY INDS COM 007973100 217,953 27,014 14.15 22,475 5.62 0.0404
2023-08-11 2023-06-30 13F ADVANCED ENERGY INDS COM 007973100 190,939 -8,836 -4.42 21,280 8.70 0.0371
2023-05-12 2023-03-31 13F ADVANCED ENERGY INDS COM 007973100 199,775 6,532 3.38 19,578 18.10 0.0364
2023-02-10 2022-12-31 13F ADVANCED ENERGY INDS COM 007973100 193,243 -4,866 -2.46 16,576 8.09 0.0368
2022-11-14 2022-09-30 13F ADVANCED ENERGY INDS COM 007973100 198,109 47,588 31.62 15,336 39.61 0.0342
2022-08-15 2022-06-30 13F ADVANCED ENERGY INDS COM 007973100 150,521 10,689 7.64 10,985 -8.77 0.0237
2022-05-13 2022-03-31 13F ADVANCED ENERGY INDS COM 007973100 139,832 3,094 2.26 12,041 -3.32 0.0242
2022-02-14 2021-12-31 13F ADVANCED ENERGY INDS COM 007973100 136,738 3,357 2.52 12,455 6.38 0.0234
2021-11-12 2021-09-30 13F ADVANCED ENERGY INDS COM 007973100 133,381 -3,690 -2.69 11,708 -24.22 0.0246
2021-08-06 2021-06-30 13F ADVANCED ENERGY INDS COM 007973100 137,071 -7,130 -4.94 15,451 -1.07 0.0343
2021-05-12 2021-03-31 13F ADVANCED ENERGY INDS COM 007973100 144,201 -14,909 -9.37 15,618 1.22 0.0394
2021-02-08 2020-12-31 13F ADVANCED ENERGY INDS COM 007973100 159,110 -15,217 -8.73 15,429 40.62 0.0399
2020-12-04 2020-09-30 13F/A-1 ADVANCED ENERGY INDS COM 007973100 174,327 19,487 12.59 10,972 4.53 0.0318
2020-11-06 2020-09-30 13F ADVANCED ENERGY INDS COM 007973100 174,327 19,487 10,972 26,418.1365
2020-08-17 2020-06-30 13F/A-1 ADVANCED ENERGY INDS COM 007973100 154,840 16,398 11.84 10,497 56.37 0.0326
2020-08-11 2020-06-30 13F ADVANCED ENERGY INDS COM 007973100 146,150 7,708 10,406 28,226.8289
2020-05-14 2020-03-31 13F ADVANCED ENERGY INDS COM 007973100 138,442 -7,708 -5.27 6,713 -35.49 0.0247
2020-02-06 2019-12-31 13F ADVANCED ENERGY INDS COM 007973100 146,150 11,583 8.61 10,406 34.71 0.0310
2019-11-12 2019-09-30 13F ADVANCED ENERGY INDS COM 007973100 134,567 4,704 3.62 7,725 5.72 0.0198
2019-08-14 2019-06-30 13F ADVANCED ENERGY INDS COM 007973100 129,863 -13,300 -9.29 7,307 2.73 0.0239
2019-05-15 2019-03-31 13F ADVANCED ENERGY INDS COM 007973100 143,163 31,285 27.96 7,113 24.81 0.0239
2019-02-13 2018-12-31 13F ADVANCED ENERGY INDS COM 007973100 111,878 9,062 8.81 5,699 7.33 0.0203
2018-11-08 2018-09-30 13F ADVANCED ENERGY INDS COM 007973100 102,816 33,895 49.18 5,310 32.65 0.0192
2018-08-03 2018-06-30 13F ADVANCED ENERGY INDS COM 007973100 68,921 66,942 3,382.62 4,003 3,051.97 0.0136
2018-05-11 2018-03-31 13F ADVANCED ENERGY INDS COM 007973100 1,979 -32,288 -94.22 127 -94.51 0.0005
2018-02-08 2017-12-31 13F ADVANCED ENERGY INDS COM 007973100 34,267 14,564 73.92 2,312 45.32 0.0080
2017-11-06 2017-09-30 13F ADVANCED ENERGY INDS COM 007973100 19,703 51 0.26 1,591 25.18 0.0057
2017-07-31 2017-06-30 13F ADVANCED ENERGY INDS COM 007973100 19,652 -2,041 -9.41 1,271 -14.53 0.0051
2017-05-05 2017-03-31 13F ADVANCED ENERGY INDS COM 007973100 21,693 11,145 105.66 1,487 157.27 0.0065
2017-02-02 2016-12-31 13F ADVANCED ENERGY INDS COM 007973100 10,548 10,548 0.00 578 0.0028
2016-08-11 2016-06-30 13F ADVANCED ENERGY INDS COM 007973100 0 -16 -100.00 0 -100.00
2016-05-10 2016-03-31 13F/A-1 ADVANCED ENERGY INDS COM 007973100 16 16 1 0.0000
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.