Solaris Energy Infrastructure, Inc.
MX ˙ BMV ˙ US83418M1036
SecurityMX:SEI / Solaris Energy Infrastructure, Inc.
InstitutionWellington Management Group Llp
Latest Disclosed Ownership61,414 shares
Ownership 0.22%
Wellington Management Group Llp ownership in SEI / Solaris Energy Infrastructure, Inc.

2019-02-12 - Wellington Management Group Llp has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 61,414 shares of Solaris Energy Infrastructure, Inc. (MX:SEI). This represents 0.22 percent ownership of the company. In their previous filing dated 2018-02-08 , Wellington Management Group Llp had reported owning 1,001,355 shares, indicating a decrease of -93.87 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2019-02-12 2019-02-12 13G/A 1,001,355 61,414 -93.87 0.22 -95.74
2018-02-08 2018-02-08 13G 1,001,355 5.17

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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 929,162 -318,501 -25.53 52,507 -8.45 0.0014
2026-02-17 2025-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 1,247,663 25,121 2.05 57,355 17.37 0.0101
2025-11-14 2025-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 1,222,542 -30,255 -2.41 48,865 37.88 0.0086
2025-08-14 2025-06-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 1,252,797 260,174 26.21 35,442 64.09 0.0064
2025-05-13 2025-03-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 992,623 166,655 20.18 21,599 -9.14 0.0042
2025-02-12 2024-12-31 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 825,968 457,531 124.18 23,771 405.66 0.0044
2024-11-14 2024-09-30 13F SOLARIS ENERGY INFRAS COM CL A 83418M103 368,437 -929,680 -71.62 4,701 -54.50 0.0008
2024-02-12 2023-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,298,117 0 0.00 10,333 -25.32 0.0019
2023-11-14 2023-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,298,117 -174,700 -11.86 13,838 12.79 0.0028
2023-08-14 2023-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,472,817 67,442 4.80 12,269 2.22 0.0023
2023-05-12 2023-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,405,375 146,800 11.66 12,002 -3.97 0.0024
2023-02-13 2022-12-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 1,258,575 359,257 39.95 12,498 48.46 0.0025
2022-11-14 2022-09-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 899,318 402,173 80.90 8,418 55.63 0.0018
2022-08-15 2022-06-30 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 497,145 -44,433 -8.20 5,409 -11.55 0.0011
2022-05-16 2022-03-31 13F SOLARIS OILFIELD INFRASTRUCT COM CL A 83418M103 541,578 541,578 6,115 0.0010
2020-08-14 2020-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 0 -13,325 -100.00 0 -100.00
2020-05-14 2020-03-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 13,325 13,325 70 0.0000
2020-02-11 2019-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 0 -49,339 -100.00 0 -100.00
2019-11-13 2019-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 49,339 -6,279 -11.29 662 -20.53 0.0001
2019-08-14 2019-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 55,618 -9,308 -14.34 833 -22.00 0.0002
2019-05-15 2019-03-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 64,926 3,512 5.72 1,068 43.94 0.0002
2019-02-14 2018-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 61,414 61,414 742 0.0002
2018-11-14 2018-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 0 -196,908 -100.00 0 -100.00
2018-08-14 2018-06-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 196,908 -422,348 -68.20 2,814 -72.56 0.0006
2018-05-15 2018-03-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 619,256 -382,099 -38.16 10,254 -52.17 0.0023
2018-02-13 2017-12-31 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 1,001,355 918,164 1,103.68 21,439 1,378.55 0.0047
2017-11-13 2017-09-30 13F SOLARIS OILFIELD INFRSTR COM CL A 83418M103 83,191 83,191 1,450 0.0003
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.