Solaris Energy Infrastructure, Inc.
MX ˙ BMV ˙ US83418M1036
SecurityMX:SEI / Solaris Energy Infrastructure, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership712,709 shares
Latest Disclosed Value $ 40,275,185
UBS Group AG reports 10.97% increase in ownership of SEI / Solaris Energy Infrastructure, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 712,709 shares of Solaris Energy Infrastructure, Inc. (MX:SEI) valued at $40,275,185 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 642,245 shares of Solaris Energy Infrastructure, Inc.. This represents a change in shares of 10.97% 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)
2026-05-05 2026-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 712,709 70,464 10.97 40,275 36.41 0.0011
2026-01-29 2025-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 642,245 51,502 8.72 29,524 25.04 0.0009
2025-11-13 2025-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 590,743 -271,188 -31.46 23,612 -3.17 0.0037
2025-08-14 2025-06-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 861,931 643,163 293.99 24,384 412.27 0.0042
2025-05-13 2025-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 218,768 12,815 6.22 4,760 -19.69 0.0009
2025-02-14 2024-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 205,953 146,786 248.09 5,927 686.07 0.0011
2024-11-14 2024-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 59,167 -14,093 -19.24 755 20.06 0.0002
2024-08-14 2024-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 73,260 14,077 23.79 629 22.42 0.0002
2024-05-13 2024-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 59,183 11,134 23.17 513 34.29 0.0001
2024-02-09 2023-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 48,049 22,898 91.04 382 42.54 0.0001
2023-11-09 2023-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 25,151 2,805 12.55 268 44.09 0.0001
2023-08-11 2023-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 22,346 -2,760 -10.99 186 -13.08 0.0001
2023-05-12 2023-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 25,106 1,334 5.61 214 -9.32 0.0001
2023-02-08 2022-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 23,772 9,914 71.54 236 81.54 0.0001
2022-11-10 2022-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 13,858 -9,674 -41.11 130 -49.22 0.0001
2022-08-10 2022-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 23,532 -6,596 -21.89 256 -24.71 0.0001
2022-05-16 2022-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 30,128 16,816 126.32 340 286.36 0.0001
2022-02-14 2021-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 13,312 12,962 3,703.43 88 2,833.33 0.0000
2021-11-15 2021-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 350 158 82.29 3 50.00 0.0000
2021-08-13 2021-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 192 -9,172 -97.95 2 -98.26 0.0000
2021-05-12 2021-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 9,364 -14,673 -61.04 115 -41.33 0.0000
2021-02-11 2020-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 24,037 24,037 196 0.0001
2020-11-12 2020-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 0 -8,721 -100.00 0 -100.00
2020-07-31 2020-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 8,721 -20,389 -70.04 65 -57.52 0.0000
2020-05-01 2020-03-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 29,110 -17,818 -37.97 153 -76.71 0.0001
2020-02-14 2019-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 46,928 19,937 73.87 657 81.49 0.0002
2019-11-14 2019-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 26,991 18,225 207.91 362 176.34 0.0001
2019-08-14 2019-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 8,766 4,342 98.15 131 79.45 0.0001
2019-05-14 2019-03-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 4,424 -7,895 -64.09 73 -51.01 0.0000
2019-02-14 2018-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 12,319 4,085 49.61 149 -4.49 0.0001
2018-11-14 2018-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 8,234 4,999 154.53 156 239.13 0.0001
2018-08-14 2018-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 3,235 -22,245 -87.30 46 -89.10 0.0000
2018-05-15 2018-03-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 25,480 21,954 622.63 422 455.26 0.0002
2018-02-14 2017-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 3,526 1,282 57.13 76 94.87 0.0000
2017-11-14 2017-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 2,244 2,244 39 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.