MIG
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Mariner Investment Group’s Williams Companies WMB Stock Holding History

Mariner Investment Group’s Portfolio WMB Stock Details WMB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$38.8K Hold
50,000
– – 0.01% 108
2026
Q1 		$155K Sell
50,000
-100,000
-67% -$6.92M 0.04% 73
2025
Q4 		$125K Buy
150,000
+100,000
+200% +$6.05M 0.01% 88
2025
Q3 		$43.8K Buy
+50,000
New +$2.93M 0.01% 67

Other funds holding WMB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Mariner Investment Group's WMB Position: Q2 2026 in Review

Mariner Investment Group increased its Williams Companies (WMB) stake by 22% in Q2 2026, buying an estimated $736K and bringing the position to 55,000 shares worth $4.09M. The position accounts for 0.88% of the portfolio, ranked #18.

Mariner Investment Group first reported a position in WMB in Q2 2013 and has held it in 7 quarters since. 1,830 funds tracked by Wall St. Rank hold WMB as of Q2 2026.

  • Mariner Investment Group held 55,000 shares of Williams Companies worth $4.09M as of Q2 2026.
  • Mariner Investment Group bought 10,000 Williams Companies shares in Q2 2026, an estimated $736K.
  • Williams Companies made up 0.88% of Mariner Investment Group's portfolio in Q2 2026, its #18 holding.
  • Mariner Investment Group first reported a position in Williams Companies in Q2 2013 and has held it in 7 quarters since.
  • 1,830 funds tracked by Wall St. Rank held Williams Companies as of Q2 2026.

Based on Mariner Investment Group's 13F filing for Q2 2026, filed 27 Jul 2026.