Solaris Energy Infrastructure, Inc.
MX ˙ BMV ˙ US83418M1036
SecurityMX:SEI / Solaris Energy Infrastructure, Inc.
InstitutionChanning Capital Management, LLC
Latest Disclosed Ownership149,205 shares
Latest Disclosed Value $ 8,431,575
Channing Capital Management, LLC reports 27.32% decrease in ownership of SEI / Solaris Energy Infrastructure, Inc.

On May 13, 2026 - Channing Capital Management, LLC filed a 13F-HR form disclosing ownership of 149,205 shares of Solaris Energy Infrastructure, Inc. (MX:SEI) valued at $8,431,575 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 205,290 shares of Solaris Energy Infrastructure, Inc.. This represents a change in shares of -27.32% 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)
2026-05-13 2026-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 149,205 -56,085 -27.32 8,432 -10.66 0.2159
2026-02-13 2025-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 205,290 -62,541 -23.35 9,437 -11.84 0.2427
2025-11-10 2025-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 267,831 -85,461 -24.19 10,705 7.11 0.2819
2025-08-13 2025-06-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 353,292 68,382 24.00 9,995 61.22 0.2779
2025-05-14 2025-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 284,910 284,910 6,200 0.1872
2024-02-06 2023-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 0 -30,088 -100.00 0 -100.00
2023-11-13 2023-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 30,088 -9,638 -24.26 321 -3.03 0.0106
2023-08-11 2023-06-30 13F SOLARIS OILFIELD INFRASTRUCTUR COM 83418M103 39,726 39,726 331 0.0102
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.