Mattern Capital Management’s Oneok OKE Stock Holding History

Mattern Capital Management’s Portfolio OKE Stock Details OKE Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$328K	Hold	3,767	–	–	0.04%	148
2026 Q1	$340K	Hold	3,767	–	–	0.04%	148
2025 Q4	$277K	Hold	3,767	–	–	0.03%	156
2025 Q3	$275K	Hold	3,767	–	–	0.03%	158
2025 Q2	$308K	Hold	3,767	–	–	0.04%	150
2025 Q1	$374K	Hold	3,767	–	–	0.05%	142
2024 Q4	$378K	Hold	3,767	–	–	0.05%	135
2024 Q3	$343K	Hold	3,767	–	–	0.04%	134
2024 Q2	$307K	Hold	3,767	–	–	0.04%	137
2024 Q1	$302K	Hold	3,767	–	–	0.04%	137
2023 Q4	$265K	Hold	3,767	–	–	0.04%	126
2023 Q3	$239K	Buy	+3,767	New	+$246K	0.04%	129

Other funds holding OKE

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Mattern Capital Management's OKE Position: Q2 2026 in Review

Mattern Capital Management held its Oneok (OKE) position steady in Q2 2026 at 3,767 shares worth $328K. The position accounts for 0.04% of the portfolio, ranked #148.

Mattern Capital Management first reported a position in OKE in Q3 2023 and has held it in 12 quarters since. The position peaked at $378K in Q4 2024. 1,655 funds tracked by Wall St. Rank hold OKE as of Q2 2026.

Mattern Capital Management held 3,767 shares of Oneok worth $328K as of Q2 2026.
Mattern Capital Management left its Oneok share count unchanged in Q2 2026.
Oneok made up 0.04% of Mattern Capital Management's portfolio in Q2 2026, its #148 holding.
Mattern Capital Management first reported a position in Oneok in Q3 2023 and has held it in 12 quarters since.
Mattern Capital Management's Oneok position peaked at $378K in Q4 2024.
1,655 funds tracked by Wall St. Rank held Oneok as of Q2 2026.

Based on Mattern Capital Management's 13F filing for Q2 2026, filed 24 Jul 2026.