Mariner
NPWR icon

Mariner’s NET Power NPWR Stock Holding History

Mariner’s Portfolio NPWR Stock Details NPWR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-13,120
Closed -$139K – 3543
2024
Q4 		$139K Buy
+13,120
New +$129K ﹤0.01% 3109

Other funds holding NPWR

ALS
Andrew L. Share $214M AUM 14.75% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
CP
CenterBook Partners Greenwich, Connecticut $1.86B AUM 24.52% 1-Year Est. Return
KCM
Kensico Capital Management Greenwich, Connecticut $4.9B AUM 41.26% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
KCM
Khrom Capital Management Miami Beach, Florida $1.09B AUM 14.82% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $57.6B AUM 8.03% 1-Year Est. Return
HHAM
HITE Hedge Asset Management Braintree, Massachusetts $1.77B AUM 38.67% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Mariner's NPWR Position: Q1 2025 in Review

Mariner sold out of NET Power (NPWR) in Q1 2025, closing a stake of 13,120 shares — an estimated $139K sold.

Mariner first reported a position in NPWR in Q4 2024 and held it in 1 quarter. The position peaked at $139K in Q4 2024. 108 funds tracked by Wall St. Rank hold NPWR as of Q1 2025.

  • Mariner reported no remaining NET Power position as of Q1 2025 after selling out during the quarter.
  • Mariner sold 13,120 NET Power shares in Q1 2025, an estimated $139K.
  • Mariner first reported a position in NET Power in Q4 2024 and held it in 1 quarter.
  • Mariner's NET Power position peaked at $139K in Q4 2024.
  • 108 funds tracked by Wall St. Rank held NET Power as of Q1 2025.

Based on Mariner's 13F filing for Q1 2025, filed 15 May 2025.