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OGS in the 13F filings

One Gas Inc · CUSIP 68235P108

Sector · UtilitiesTheme · Energy and power infrastructure· L3VLUP-defined
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 22 Jan 2026
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 8 listed it in both
Shares listed
7,877,311
combined, among listed positions
Reported value
$609m
combined, at the quarter end

Among the 92 comparable managers: 16 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -909,111.

Managers listing OGS in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
Wellington Management Group LLP3,199,956$247munder 0.1%Trimmed-991,13917 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP1,700,735$131munder 0.1%Trimmed-7,05717 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC443,093$34munder 0.1%Trimmed-131,31513 Feb 2026 (the filing on sec.gov)
MFS Investment Management409,133$32munder 0.1%Trimmed-14,63422 Jan 2026 (the filing on sec.gov)
Invesco Ltd286,482$22munder 0.1%Trimmed-3,84319 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.279,594$22munder 0.1%Added+83,30217 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP229,740$18munder 0.1%Added+4,46517 Feb 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP210,820$16m0.13%Added+159,93417 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp152,554$12munder 0.1%Added+122,88017 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC146,904$11munder 0.1%Trimmed-16,71117 Feb 2026 (the filing on sec.gov)
Man Group PLC144,269$11munder 0.1%Added+12,62717 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC121,620$9.4munder 0.1%Added+14,91317 Feb 2026 (the filing on sec.gov)
First Eagle Investment Management LLC104,064$8.0munder 0.1%Added+2,5004 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP81,594$6.3munder 0.1%Added+55,34513 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc63,077$4.9munder 0.1%Added+1,59817 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC42,701$3.3munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Hudson Bay Capital Management LP40,474$3.1munder 0.1%Added+20,35513 Feb 2026 (the filing on sec.gov)
GAMCO Investors Inc39,762$3.1munder 0.1%Held05 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC29,051$2.2munder 0.1%Added+21,53817 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd27,258$2.1munder 0.1%Held017 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC25,561$2.0munder 0.1%Trimmed-64,66912 Feb 2026 (the filing on sec.gov)
PDT Partners LLC21,625$1.7m0.11%Trimmed-23,71417 Feb 2026 (the filing on sec.gov)
Winton Group Ltd15,536$1.2munder 0.1%Added+16511 Feb 2026 (the filing on sec.gov)
Millennium Management LLC14,502$1.1munder 0.1%Trimmed-9,48817 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP13,251$1.0munder 0.1%Trimmed-2,33117 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (2)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
8 in Q3 2024 to 9 in Q2 2026

Tracked managers listing it, at least.

0358102014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
OGS by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20145$106mn.a.n.a.
Q2 20145$82mn.a.n.a.
Q3 20144$75mn.a.n.a.
Q4 20143$55mn.a.n.a.
Q1 20153$57mn.a.n.a.
Q2 20151$3.5mn.a.n.a.
Q3 20152$195mn.a.n.a.
Q4 20152$225mn.a.n.a.
Q1 20163$276mn.a.n.a.
Q2 20164$334mn.a.n.a.
Q3 20163$324mn.a.n.a.
Q4 20164$351mn.a.n.a.
Q1 20173$363mn.a.n.a.
Q2 20173$372mn.a.n.a.
Q3 20173$399mn.a.n.a.
Q4 20173$385mn.a.n.a.
Q1 20183$307mn.a.n.a.
Q2 20182$347mn.a.n.a.
Q3 20184$408mn.a.n.a.
Q4 20185$391mn.a.n.a.
Q1 20194$455mn.a.n.a.
Q2 20194$458mn.a.n.a.
Q3 20196$428mn.a.n.a.
Q4 20194$370mn.a.n.a.
Q1 20204$329mn.a.n.a.
Q2 20204$301mn.a.n.a.
Q3 20202$263mn.a.n.a.
Q4 20202$292mn.a.n.a.
Q1 20213$291mn.a.n.a.
Q2 20214$284mn.a.n.a.
Q3 20212$4.1mn.a.n.a.
Q4 20215$20mn.a.n.a.
Q1 20227$350mn.a.n.a.
Q2 20228$317mn.a.n.a.
Q3 20228$109mn.a.n.a.
Q4 20224$58mn.a.n.a.
Q1 20235$87mn.a.n.a.
Q2 20237$94mn.a.n.a.
Q3 20238$114mn.a.n.a.
Q4 20238$92m62
Q1 20249$250m72
Q2 20246$231m24
Q3 20248$354m51
Q4 20245$249m22
Q1 20258$320m44
Q2 202510$493m55
Q3 20259$558m62
Q4 20257$409m1615
Q1 20268$380m1616
Q2 20269$215m1815

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

OGS and GEV →OGS and XOM →OGS and CVX →Choose a stock to compare with OGS →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own OGS, latest filings →Back to the 13F Explorer →