Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s NorthWestern Energy NWE Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’s Portfolio NWE Stock Details NWE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$36M Buy
546,033
+62,742
+13% +$4.25M 0.09% 100
2025
Q4 		$31.2M Buy
483,291
+424,593
+723% +$26.9M 0.08% 111
2025
Q3 		$3.44M Buy
+58,698
New +$3.24M 0.01% 326
2019
Q4 		– Sell
-36,400
Closed -$2.73M – 741
2019
Q3 		$2.73M Sell
36,400
-33,800
-48% -$2.44M 0.02% 377
2019
Q2 		$5.07M Buy
+70,200
New +$4.99M 0.04% 293

Other funds holding NWE

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s NWE Position: Q1 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) increased its NorthWestern Energy (NWE) stake by 13% in Q1 2026, buying an estimated $4.25M and bringing the position to 546,033 shares worth $36M. The position accounts for 0.09% of the portfolio, ranked #100.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in NWE in Q2 2019 and has held it in 5 quarters since. 370 funds tracked by Wall St. Rank hold NWE as of Q1 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 546,033 shares of NorthWestern Energy worth $36M as of Q1 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) bought 62,742 NorthWestern Energy shares in Q1 2026, an estimated $4.25M.
  • NorthWestern Energy made up 0.09% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q1 2026, its #100 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in NorthWestern Energy in Q2 2019 and has held it in 5 quarters since.
  • 370 funds tracked by Wall St. Rank held NorthWestern Energy as of Q1 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q1 2026, filed 14 May 2026.