Solaris Energy Infrastructure, Inc.
MX ˙ BMV ˙ US83418M1036
SecurityMX:SEI / Solaris Energy Infrastructure, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership7,771 shares
Latest Disclosed Value $ 439,159
Advisor Group Holdings, Inc. reports 0.35% increase in ownership of SEI / Solaris Energy Infrastructure, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 7,771 shares of Solaris Energy Infrastructure, Inc. (MX:SEI) valued at $439,159 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,744 shares of Solaris Energy Infrastructure, Inc.. This represents a change in shares of 0.35% 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)
2026-05-15 2026-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 7,771 27 0.35 439 23.66 0.0004
2026-02-17 2025-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 7,744 -4,692 -37.73 356 -10.80 0.0005
2025-11-14 2025-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 12,436 284 2.34 398 16.03 0.0006
2025-09-04 2025-06-30 13F/A-1 SOLARIS ENERGY INFRAS COM CL A 83418M103 12,152 -2,395 -16.46 343 8.54 0.0006
2025-08-13 2025-06-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 1,019 -13,528 29 0.0000
2025-05-12 2025-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 14,547 14,453 15,375.53 317 15,700.00 0.0007
2025-06-06 2024-12-31 13F/A-1 SOLARIS ENERGY INFRAS COM CL A 83418M103 94 -10,763 -99.13 3 -98.55 0.0000
2025-02-07 2024-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 94 -10,763 3 0.0000
2024-11-13 2024-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 10,857 10,851 180,850.00 139 0.0003
2024-08-13 2024-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 6 -140,204 -100.00 0 -100.00 0.0000
2024-05-10 2024-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 140,210 139,633 24,199.83 1,216 30,275.00 0.0027
2024-02-12 2023-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 577 -632 -52.27 5 -66.67 0.0000
2023-11-13 2023-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,209 535 79.38 13 140.00 0.0000
2023-08-21 2023-06-30 13F/A-1 SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 674 -225 -25.03 6 -28.57 0.0000
2023-08-10 2023-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 674 -225 6 0.0000
2023-05-12 2023-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 899 200 28.61 8 0.00 0.0000
2023-02-10 2022-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 699 30 4.48 7 0.00 0.0000
2022-11-14 2022-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 669 -354 -34.60 7 -36.36 0.0000
2022-08-10 2022-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,023 340 49.78 11 37.50 0.0000
2022-05-04 2022-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 683 -279 -29.00 8 33.33 0.0000
2022-02-03 2021-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 962 -145 -13.10 6 -33.33 0.0000
2021-11-05 2021-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,107 -799 -41.92 9 -50.00 0.0000
2021-08-02 2021-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,906 -2,959 -60.82 18 -70.00 0.0000
2021-05-13 2021-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 4,865 705 16.95 60 76.47 0.0001
2021-02-10 2020-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 4,160 -3,431 -45.20 34 -29.17 0.0001
2020-11-12 2020-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 7,591 641 9.22 48 -7.69 0.0001
2020-08-14 2020-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 6,950 -2,304 -24.90 52 8.33 0.0002
2020-05-18 2020-03-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 9,254 9,254 48 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.