Solaris Energy Infrastructure, Inc.
MX ˙ BMV ˙ US83418M1036
SecurityMX:SEI / Solaris Energy Infrastructure, Inc.
InstitutionPrincipal Financial Group Inc
Latest Disclosed Ownership1,144,652 shares
Latest Disclosed Value $ 64,684,284
Principal Financial Group Inc reports 21.94% decrease in ownership of SEI / Solaris Energy Infrastructure, Inc.

On May 4, 2026 - Principal Financial Group Inc filed a 13F-HR form disclosing ownership of 1,144,652 shares of Solaris Energy Infrastructure, Inc. (MX:SEI) valued at $64,684,284 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,466,343 shares of Solaris Energy Infrastructure, Inc.. This represents a change in shares of -21.94% during the quarter.

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)
2026-05-04 2026-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 1,144,652 -321,691 -21.94 64,684 -4.04 0.0345
2026-02-02 2025-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 1,466,343 1,400,311 2,120.66 67,408 2,454.26 0.0344
2025-11-04 2025-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 66,032 -22,115 -25.09 2,639 5.86 0.0013
2025-08-08 2025-06-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 88,147 88,147 2,494 0.0013
2025-04-28 2025-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 0 -7,892 -100.00 0 -100.00
2025-01-31 2024-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 7,892 7,892 227 0.0001
2022-11-09 2022-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 0 -15,073 -100.00 0 -100.00
2022-08-10 2022-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 15,073 -4,061 -21.22 164 -24.07 0.0001
2022-05-09 2022-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 19,134 -9,794 -33.86 216 14.29 0.0001
2022-02-09 2021-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 28,928 -16,621 -36.49 189 -50.26 0.0001
2021-11-09 2021-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 45,549 -334 -0.73 380 -14.99 0.0002
2021-08-10 2021-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 45,883 20,144 78.26 447 41.46 0.0003
2021-05-10 2021-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 25,739 1,959 8.24 316 62.89 0.0002
2021-02-23 2020-12-31 13F/A-1 SOLARIS OILFIELD INFRSTR COM CL A 83418M103 23,780 -12,769 -34.94 194 -16.38 0.0001
2021-02-08 2020-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 23,780 -12,769 194 76.3226
2020-11-06 2020-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 36,549 17,253 89.41 232 62.24 0.0002
2020-08-05 2020-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 19,296 2,536 15.13 143 62.50 0.0001
2020-05-12 2020-03-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 16,760 69 0.41 88 -62.39 0.0001
2020-02-05 2019-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 16,691 -1,868 -10.07 234 -6.02 0.0002
2019-11-13 2019-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 18,559 1,360 7.91 249 -3.49 0.0002
2019-08-12 2019-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 17,199 17,199 258 0.0002
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.