Solaris Energy Infrastructure, Inc.
MX ˙ BMV ˙ US83418M1036
SecurityMX:SEI / Solaris Energy Infrastructure, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership953 shares
Latest Disclosed Value $ 53,854
Quantbot Technologies LP ownership in SEI / Solaris Energy Infrastructure, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 953 shares of Solaris Energy Infrastructure, Inc. (MX:SEI) valued at $53,854 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 0 shares of Solaris Energy Infrastructure, Inc..

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 INFRASTRUCTUR COM 83418M103 953 953 54 0.0022
2026-02-10 2025-12-31 13F SOLARIS ENERGY INFRASTRUCTUR COM 83418M103 0 -161,433 -100.00 0 -100.00
2025-11-12 2025-09-30 13F SOLARIS ENERGY INFRASTRUCTUR COM 83418M103 161,433 42,900 36.19 6,452 92.42 0.1756
2025-08-13 2025-06-30 13F SOLARIS ENERGY INFRASTRUCTUR COM 83418M103 118,533 -24,260 -16.99 3,353 7.92 0.0860
2025-05-13 2025-03-31 13F SOLARIS ENERGY INFRASTRUCTUR COM 83418M103 142,793 142,793 3,107 0.0989
2024-08-09 2024-06-30 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 0 -3,600 -100.00 0 -100.00
2024-05-06 2024-03-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 3,600 -5,490 -60.40 31 -56.94 0.0018
2024-02-14 2023-12-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 9,090 9,090 72 0.0042
2023-08-08 2023-06-30 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 0 -23,297 -100.00 0 -100.00
2023-05-12 2023-03-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 23,297 8,281 55.15 199 32.89 0.0141
2023-02-13 2022-12-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 15,016 10,063 203.17 149 223.91 0.0107
2022-11-07 2022-09-30 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 4,953 -6,091 -55.15 46 -61.67 0.0035
2022-08-09 2022-06-30 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 11,044 9,444 590.25 120 566.67 0.0110
2022-05-16 2022-03-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 1,600 -2,397 -59.97 18 -30.77 0.0016
2022-02-11 2021-12-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 3,997 -872 -17.91 26 -35.00 0.0021
2021-11-09 2021-09-30 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 4,869 4,869 40 0.0029
2021-02-12 2020-12-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 0 -4,400 -100.00 0 -100.00
2020-11-16 2020-09-30 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 4,400 4,400 27 0.0031
2020-05-13 2020-03-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 0 -13,243 -100.00 0 -100.00
2020-02-10 2019-12-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 13,243 13,243 185 0.0184
2018-08-13 2018-06-30 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 0 -550 -100.00 0 -100.00
2018-05-11 2018-03-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 550 -3,602 -86.75 9 -89.77 0.0008
2018-02-12 2017-12-31 13F SOLARIS OILFIELD INFRAST-A COM 83418M103 4,152 4,152 88 0.0082
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.