Solaris Energy Infrastructure, Inc.
MX ˙ BMV ˙ US83418M1036
SecurityMX:SEI / Solaris Energy Infrastructure, Inc.
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership385,936 shares
Latest Disclosed Value $ 21,809,243
Bnp Paribas Arbitrage, Sa reports 34.53% increase in ownership of SEI / Solaris Energy Infrastructure, Inc.

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 385,936 shares of Solaris Energy Infrastructure, Inc. (MX:SEI) valued at $21,809,243 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 286,879 shares of Solaris Energy Infrastructure, Inc.. This represents a change in shares of 34.53% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F Solaris Energy Infrastructure Equity 83418M103 385,936 99,057 34.53 21,809 65.38 0.0106
2026-02-10 2025-12-31 13F Solaris Energy Infrastructure Equity 83418M103 286,879 279,987 4,062.49 13,188 4,695.27 0.0060
2025-11-13 2025-09-30 13F Solaris Energy Infrastructure Equity 83418M103 6,892 3,526 104.75 275 189.47 0.0001
2025-08-14 2025-06-30 13F Solaris Energy Infrastructure Equity 83418M103 3,366 1,577 88.15 95 150.00 0.0001
2025-05-14 2025-03-31 13F Solaris Energy Infrastructure Equity 83418M103 1,789 -83,699 -97.91 39 -98.46 0.0000
2025-02-14 2024-12-31 13F Solaris Energy Infrastructure Equity 83418M103 85,488 62,188 266.90 2,460 728.28 0.0014
2024-11-13 2024-09-30 13F Solaris Energy Infrastructure Equity 83418M103 23,300 7,090 43.74 297 113.67 0.0002
2024-08-13 2024-06-30 13F Solaris Oilfield Infrastructure Equity 83418M103 16,210 -17,500 -51.91 139 -52.40 0.0001
2024-05-01 2024-03-31 13F Solaris Oilfield Infrastructure Equity 83418M103 33,710 -29,981 -47.07 292 -42.29 0.0003
2024-02-14 2023-12-31 13F/A-2 Solaris Oilfield Infrastructure Equity 83418M103 63,691 49,871 360.86 507 244.22 0.0006
2024-02-07 2023-12-31 13F/A-1 Solaris Oilfield Infrastructure Equity 83418M103 63,691 49,871 507 0.0001
2024-02-07 2023-12-31 13F Solaris Oilfield Infrastructure Equity 83418M103 63,691 507
2023-11-14 2023-09-30 13F Solaris Oilfield Infrastructure Equity 83418M103 13,820 5,335 62.88 147 110.00 0.0002
2023-08-09 2023-06-30 13F Solaris Oilfield Infrastructure Equity 83418M103 8,485 1,576 22.81 71 18.64 0.0001
2023-05-12 2023-03-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 6,909 -30,341 -81.45 59 -84.01 0.0001
2023-02-14 2022-12-31 13F Solaris Oilfield Infrastructure Equity 83418M103 37,250 -18,104 -32.71 370 -28.76 0.0006
2022-11-16 2022-09-30 13F/A-1 Solaris Oilfield Infrastructure Equity 83418M103 55,354 -3,629 -6.15 518 -19.19 0.0008
2022-11-15 2022-09-30 13F Solaris Oilfield Infrastructure Equity 83418M103 55,354 -3,629 518 0.0001
2022-08-12 2022-06-30 13F Solaris Oilfield Infrastructure Equity 83418M103 58,983 6,743 12.91 642 8.83 0.0010
2022-05-18 2022-03-31 13F/A-1 Solaris Oilfield Infrastructure Equity 83418M103 52,240 -21,339 -29.00 590 22.45 0.0008
2022-02-09 2021-12-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 73,579 66,540 945.30 482 729.31 0.0007
2021-11-16 2021-09-30 13F/A-1 SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 7,039 5,138 270.28 59 222.22 0.0001
2021-11-12 2021-09-30 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 6,615 4,714 42 0.0000
2021-08-10 2021-06-30 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 1,901 -11,538 -85.85 19 -89.02 0.0000
2021-05-07 2021-03-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 13,439 6,581 95.96 165 198.18 0.0002
2021-02-10 2020-12-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 6,858 243 3.67 56 34.15 0.0001
2020-10-30 2020-09-30 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 6,615 5,596 549.17 42 485.71 0.0001
2020-08-06 2020-06-30 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 1,019 -8,572 -89.38 8 -86.00 0.0000
2020-05-13 2020-03-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 9,591 5,988 166.19 50 0.00 0.0001
2020-02-12 2019-12-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 3,603 -839 -18.89 50 -15.25 0.0001
2019-11-07 2019-09-30 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 4,442 1,445 48.21 60 34.09 0.0001
2019-07-30 2019-06-30 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 2,997 -2,588 -46.34 45 -51.65 0.0001
2019-04-25 2019-03-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 5,585 5,582 186,066.67 92 254,947.22 0.0002
2019-02-12 2018-12-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 3 -826 -99.64 0 -100.00 0.0000
2018-11-07 2018-09-30 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 829 0 0.00 16 36.36 0.0000
2018-07-25 2018-06-30 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 829 -2,979 -78.23 12 -82.54 0.0000
2018-05-11 2018-03-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 3,808 247 6.94 63 -17.11 0.0001
2018-03-05 2017-12-31 13F/A-1 SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 3,561 2,574 260.79 76 347.06 0.0001
2018-02-01 2017-12-31 13F SOLARIS OILFIELD INFRASTRUCTURE EQUITY 83418M103 3,561 2,574 76
2017-11-03 2017-09-30 13F SOLARIS OILFIELD INFRSTR INC COM STOCK 83418M103 987 -73 -6.89 17 41.67 0.0000
2017-08-03 2017-06-30 13F SOLARIS OILFIELD INFRSTR INC COM STOCK 83418M103 1,060 1,060 12 0.0000
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.