Boston Partners
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Boston Partners’s Mach Natural Resources MNR Stock Holding History

Boston Partners’s Portfolio MNR Stock Details MNR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$1.2M Buy
116,779
+95,435
+447% +$1.19M ﹤0.01% 667
2026
Q2 		$270K Buy
+21,344
New +$285K ﹤0.01% 768
2025
Q3 		– Sell
-13,412
Closed -$194K – 783
2025
Q2 		$194K Buy
+13,412
New +$187K ﹤0.01% 704

Other funds holding MNR

Kayne Anderson Capital Advisors
Kayne Anderson Capital Advisors Los Angeles, California $5.47B AUM 13.78% 1-Year Est. Return
Royce & Associates
Royce & Associates New York $11B AUM 39.4% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $468B AUM 17.69% 1-Year Est. Return
Chicago Partners Investment Group
Chicago Partners Investment Group Chicago, Illinois $5.45B AUM 19.52% 1-Year Est. Return
William Blair & Company
William Blair & Company Chicago, Illinois $38.6B AUM 22.09% 1-Year Est. Return
Signature Estate & Investment Advisors
Signature Estate & Investment Advisors Los Angeles, California $5.67B AUM 20.02% 1-Year Est. Return
Granville Capital
Granville Capital Greensboro, North Carolina $254M AUM 16.36% 1-Year Est. Return
OpenArc Corporate Advisory
OpenArc Corporate Advisory Atlanta, Georgia $8.86B AUM 19.31% 1-Year Est. Return
Novem Group
Novem Group Rochester, New York $1.01B AUM 13.42% 1-Year Est. Return
Arrow Investment Advisors
Arrow Investment Advisors Laurel, Maryland $116M AUM 9.51% 1-Year Est. Return

Boston Partners's MNR Position: Q3 2026 in Review

Boston Partners increased its Mach Natural Resources (MNR) stake by 447% in Q3 2026, buying an estimated $1.19M and bringing the position to 116,779 shares worth $1.2M. The position accounts for ﹤0.01% of the portfolio, ranked #667.

Boston Partners first reported a position in MNR in Q2 2025 and has held it in 3 quarters since. 27 funds tracked by Wall St. Rank hold MNR as of Q3 2026.

  • Boston Partners held 116,779 shares of Mach Natural Resources worth $1.2M as of Q3 2026.
  • Boston Partners bought 95,435 Mach Natural Resources shares in Q3 2026, an estimated $1.19M.
  • Mach Natural Resources made up ﹤0.01% of Boston Partners's portfolio in Q3 2026, its #667 holding.
  • Boston Partners first reported a position in Mach Natural Resources in Q2 2025 and has held it in 3 quarters since.
  • 27 funds tracked by Wall St. Rank held Mach Natural Resources as of Q3 2026.

Based on Boston Partners's 13F filing for Q3 2026, filed 10 Nov 2026.