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 Q1	$3.28M	Hold	45,000	–	–	0.95%	16
2025 Q4	$2.7M	Buy	45,000 +5,000	+13%	+$302K	0.16%	37
2025 Q3	$2.53M	Sell	40,000 -15,000	-27%	-$880K	0.77%	22
2025 Q2	$3.45M	Buy	55,000 +25,000	+83%	+$1.48M	1.23%	11
2025 Q1	$1.79M	Buy	+30,000	New	+$1.72M	0.71%	14
2013 Q3	–	Sell	-20,000	Closed	-$649K	–	315
2013 Q2	$649K	Buy	+20,000	New	+$720K	0.27%	69

Other funds holding WMB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Mariner Investment Group's WMB Position: Q1 2026 in Review

Mariner Investment Group held its Williams Companies (WMB) position steady in Q1 2026 at 45,000 shares worth $3.28M. The position accounts for 0.95% of the portfolio, ranked #16.

Mariner Investment Group first reported a position in WMB in Q2 2013 and has held it in 6 quarters since. The position peaked at $3.45M in Q2 2025. 1,807 funds tracked by Wall St. Rank hold WMB as of Q1 2026.

Mariner Investment Group held 45,000 shares of Williams Companies worth $3.28M as of Q1 2026.
Mariner Investment Group left its Williams Companies share count unchanged in Q1 2026.
Williams Companies made up 0.95% of Mariner Investment Group's portfolio in Q1 2026, its #16 holding.
Mariner Investment Group first reported a position in Williams Companies in Q2 2013 and has held it in 6 quarters since.
Mariner Investment Group's Williams Companies position peaked at $3.45M in Q2 2025.
1,807 funds tracked by Wall St. Rank held Williams Companies as of Q1 2026.

Based on Mariner Investment Group's 13F filing for Q1 2026, filed 5 May 2026.