MAM
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Martingale Asset Management’s ONE Gas OGS Stock Holding History

Martingale Asset Management’s Portfolio OGS Stock Details OGS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$6.27M Buy
72,815
+18,630
+34% +$1.54M 0.16% 149
2025
Q4 		$4.19M Buy
54,185
+13,448
+33% +$1.08M 0.11% 176
2025
Q3 		$3.3M Buy
40,737
+7,280
+22% +$545K 0.08% 204
2025
Q2 		$2.4M Buy
33,457
+7,337
+28% +$551K 0.06% 267
2025
Q1 		$1.97M Sell
26,120
-600
-2% -$43.2K 0.05% 301
2024
Q4 		$1.85M Sell
26,720
-790
-3% -$57.7K 0.05% 328
2024
Q3 		$2.05M Sell
27,510
-5
-0% -$344 0.05% 305
2024
Q2 		$1.76M Sell
27,515
-10,790
-28% -$677K 0.04% 328
2024
Q1 		$2.47M Sell
38,305
-10,698
-22% -$656K 0.05% 252
2023
Q4 		$3.12M Buy
49,003
+1,283
+3% +$81.1K 0.06% 201
2023
Q3 		$3.26M Buy
47,720
+1,015
+2% +$76.7K 0.07% 184
2023
Q2 		$3.59M Sell
46,705
-6,201
-12% -$495K 0.07% 186
2023
Q1 		$4.19M Buy
52,906
+6,266
+13% +$497K 0.08% 176
2022
Q4 		$3.53M Buy
+46,640
New +$3.6M 0.07% 183
2022
Q1 		– Sell
-2,847
Closed -$221K – 852
2021
Q4 		$221K Sell
2,847
-9,507
-77% -$662K ﹤0.01% 786
2021
Q3 		$783K Buy
12,354
+7,847
+174% +$559K 0.01% 566
2021
Q2 		$335K Sell
4,507
-6,619
-59% -$510K ﹤0.01% 696
2021
Q1 		$857K Sell
11,126
-100
-0.9% -$7.3K 0.01% 465
2020
Q4 		$863K Sell
11,226
-48,302
-81% -$3.65M 0.01% 478
2020
Q3 		$4.11M Sell
59,528
-63,401
-52% -$4.67M 0.05% 247
2020
Q2 		$9.47M Buy
122,929
+700
+0.6% +$56.6K 0.11% 186
2020
Q1 		$10.2M Sell
122,229
-11,201
-8% -$991K 0.14% 176
2019
Q4 		$12.5M Sell
133,430
-6,509
-5% -$595K 0.13% 184
2019
Q3 		$13.4M Sell
139,939
-4,903
-3% -$448K 0.14% 175
2019
Q2 		$13.1M Buy
144,842
+201
+0.1% +$17.8K 0.14% 184
2019
Q1 		$12.9M Buy
144,641
+37,921
+36% +$3.19M 0.14% 174
2018
Q4 		$8.5M Buy
106,720
+13,300
+14% +$1.1M 0.11% 193
2018
Q3 		$7.69M Sell
93,420
-2,399
-3% -$188K 0.09% 223
2018
Q2 		$7.16M Buy
95,819
+15,197
+19% +$1.08M 0.09% 224
2018
Q1 		$5.32M Sell
80,622
-14,306
-15% -$963K 0.07% 278
2017
Q4 		$6.96M Sell
94,928
-17,892
-16% -$1.36M 0.09% 214
2017
Q3 		$8.31M Sell
112,820
-3,104
-3% -$228K 0.11% 192
2017
Q2 		$8.09M Buy
115,924
+5,700
+5% +$398K 0.11% 189
2017
Q1 		$7.45M Sell
110,224
-16,803
-13% -$1.09M 0.11% 199
2016
Q4 		$8.13M Buy
127,027
+37,697
+42% +$2.29M 0.11% 207
2016
Q3 		$5.53M Buy
89,330
+69,800
+357% +$4.43M 0.08% 250
2016
Q2 		$1.3M Sell
19,530
-4,387
-18% -$264K 0.02% 413
2016
Q1 		$1.46M Buy
23,917
+706
+3% +$39.8K 0.03% 389
2015
Q4 		$1.17M Buy
23,211
+1,600
+7% +$77.2K 0.03% 435
2015
Q3 		$980K Buy
21,611
+6,204
+40% +$272K 0.02% 487
2015
Q2 		$656K Buy
+15,407
New +$657K 0.02% 632

Other funds holding OGS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
EIP
Energy Income Partners Westport, Connecticut $6.22B AUM 18.97% 1-Year Est. Return

Martingale Asset Management's OGS Position: Q1 2026 in Review

Martingale Asset Management increased its ONE Gas (OGS) stake by 34% in Q1 2026, buying an estimated $1.54M and bringing the position to 72,815 shares worth $6.27M. The position accounts for 0.16% of the portfolio, ranked #149.

Martingale Asset Management first reported a position in OGS in Q2 2015 and has held it in 41 quarters since. The position peaked at $13.4M in Q3 2019. 426 funds tracked by Wall St. Rank hold OGS as of Q1 2026.

  • Martingale Asset Management held 72,815 shares of ONE Gas worth $6.27M as of Q1 2026.
  • Martingale Asset Management bought 18,630 ONE Gas shares in Q1 2026, an estimated $1.54M.
  • ONE Gas made up 0.16% of Martingale Asset Management's portfolio in Q1 2026, its #149 holding.
  • Martingale Asset Management first reported a position in ONE Gas in Q2 2015 and has held it in 41 quarters since.
  • Martingale Asset Management's ONE Gas position peaked at $13.4M in Q3 2019.
  • 426 funds tracked by Wall St. Rank held ONE Gas as of Q1 2026.

Based on Martingale Asset Management's 13F filing for Q1 2026, filed 13 May 2026.