Solaris Energy Infrastructure, Inc.
MX ˙ BMV ˙ US83418M1036
SecurityMX:SEI / Solaris Energy Infrastructure, Inc.
InstitutionVan Den Berg Management I, Inc
Latest Disclosed Ownership14,868 shares
Latest Disclosed Value $ 840,191
Van Den Berg Management I, Inc reports 3.86% decrease in ownership of SEI / Solaris Energy Infrastructure, Inc.

On May 15, 2026 - Van Den Berg Management I, Inc filed a 13F-HR form disclosing ownership of 14,868 shares of Solaris Energy Infrastructure, Inc. (MX:SEI) valued at $840,191 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 15,465 shares of Solaris Energy Infrastructure, Inc.. This represents a change in shares of -3.86% 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 14,868 -597 -3.86 840 18.31 0.1926
2026-02-17 2025-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 15,465 -346 -2.19 711 12.52 0.1629
2025-11-14 2025-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 15,811 -10,901 -40.81 632 -16.42 0.1583
2025-08-14 2025-06-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 26,712 0 0.00 756 29.95 0.2148
2025-05-15 2025-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 26,712 -488 -1.79 581 -25.70 0.1780
2025-02-14 2024-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 27,200 -40 -0.15 783 125.36 0.2256
2024-11-14 2024-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 27,240 -10,186 -27.22 348 8.10 0.1006
2024-08-14 2024-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 37,426 40 0.11 321 -0.93 0.0953
2024-05-15 2024-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 37,386 -1,401 -3.61 324 5.19 0.0951
2024-02-14 2023-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 38,787 85 0.22 309 -25.24 0.1025
2023-11-14 2023-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 38,702 58 0.15 413 28.35 0.1446
2023-08-14 2023-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 38,644 5,664 17.17 322 14.23 0.1158
2023-05-15 2023-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 32,980 0 0.00 282 -14.07 0.1048
2023-02-14 2022-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 32,980 210 0.64 327 6.51 0.1220
2022-11-14 2022-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 32,770 0 0.00 307 -14.01 0.0911
2022-08-15 2022-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 32,770 115 0.35 357 -3.25 0.0952
2022-05-16 2022-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 32,655 440 1.37 369 74.88 0.0830
2022-02-14 2021-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 32,215 32,215 211 0.0383
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.