SOLARIS OILFIELD INFRAST-A (SOI) Institutional Ownership Changes & 13F Activity
SOLARIS OILFIELD INFRAST-A (SOI). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Millennium Management Llc, Jane Street Group, Llc, Ameriprise Financial Inc, Encompass Capital Advisors Llc, and Alyeska Investment Group, L.P..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Envestnet Asset Management Inc | Buy | +54,128 | +103.1% | 106,635 | $8.58M | Q2 2026 | Sep 23, 2026 |
| State Street Corp | Buy | +132,118 | +9.7% | 1,487,464 | $119.65M | Q2 2026 | Sep 22, 2026 |
| Manufacturers Life Insurance Company, The | Buy | +4,406 | +19.5% | 26,967 | $2.17M | Q2 2026 | Sep 09, 2026 |
| Integrated Wealth Concepts Llc | Buy | +2,727 | — | 2,727 | $219.41K | Q2 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Buy | +98 | +73.1% | 232 | $18.67K | Q2 2026 | Sep 04, 2026 |
| Citadel Advisors Llc | Sell | -297,101 | -60.2% | 196,383 | $15.80M | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Buy | +45 | +0.8% | 5,692 | $457.94K | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Sell | -1,072 | -2.1% | 50,719 | $4.08M | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Sell | -352,329 | -81.6% | 79,594 | $6.40M | Q2 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Sell | -785 | -14.6% | 4,596 | $369.80K | Q2 2026 | Aug 19, 2026 |
| Fulcrum Asset Management Llp | Buy | +7,850 | — | 7,850 | $622.27K | Q2 2026 | Aug 18, 2026 |
| Millennium Management Llc | Sell | -2,017,819 | -88.3% | 267,725 | $21.54M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -1,518,145 | -96.8% | 50,318 | $4.05M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +1,144,927 | — | 1,144,927 | $92.12M | Q2 2026 | Aug 14, 2026 |
| Encompass Capital Advisors Llc | Buy | +769,604 | +44.0% | 2,519,604 | $202.73M | Q2 2026 | Aug 14, 2026 |
| Alyeska Investment Group, L.P. | Buy | +761,755 | — | 761,755 | $61.29M | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +747,004 | +1454.4% | 798,365 | $64.24M | Q2 2026 | Aug 14, 2026 |
| Greenhouse Funds Lllp | Buy | +495,053 | — | 495,053 | $39.83M | Q2 2026 | Aug 14, 2026 |
| Valiant Capital Management, L.P. | Buy | +484,843 | +43.3% | 1,604,346 | $129.09M | Q2 2026 | Aug 14, 2026 |
| Steadfast Capital Management Lp | Buy | +481,901 | — | 481,901 | $38.77M | Q2 2026 | Aug 14, 2026 |
| Van Eck Associates Corp | Sell | -475,786 | -24.3% | 1,478,669 | $118.97M | Q2 2026 | Aug 14, 2026 |
| Tortoise Capital Advisors, L.L.C. | Buy | +293,332 | — | 293,332 | $23.60M | Q2 2026 | Aug 14, 2026 |
| Goodlander Investment Management, Llc | Buy | +270,000 | — | 270,000 | $21.72M | Q2 2026 | Aug 14, 2026 |
| Schonfeld Strategic Advisors Llc | Buy | +195,161 | +1397.0% | 209,131 | $16.83M | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Sell | -180,676 | -22.8% | 612,638 | $49.29M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Sell | -178,566 | -94.5% | 10,390 | $835.98K | Q2 2026 | Aug 14, 2026 |
| Bwcp, Lp | Buy | +172,215 | — | 172,215 | $13.86M | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Sell | -167,536 | -51.4% | 158,270 | $12.73M | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Sell | -165,573 | -57.7% | 121,598 | $9.78M | Q2 2026 | Aug 14, 2026 |
| Ayal Capital Advisors Ltd | Sell | -159,700 | -59.4% | 109,100 | $8.78M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about SOI activity
Which institutional owners are buying SOI?
Institutional owners buying SOI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in SOI activity?
"Buy" means an investor increased their reported position in SOI compared to the prior reporting period. This reflects growing exposure to SOLARIS OILFIELD INFRAST-A (SOI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in SOI increasing?
Institutional interest in SOI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.