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ATO in the 13F filings

Atmos Energy Corp · CUSIP 049560105

Sector · UtilitiesTheme · Energy and power infrastructure· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
34
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 11 listed it in both
Shares listed
27,663,042
combined, among listed positions
Reported value
$4.8bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 26 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +3,070,326.

Managers listing ATO in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

34 of 34 holders

ActionFiling
Wellington Management Group LLP9,185,788$1.6bn0.27%Trimmed-465,68414 Aug 2026 (the filing on sec.gov)
Invesco Ltd3,173,775$547munder 0.1%Added+166,46914 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc2,481,649$428munder 0.1%Trimmed-233,45814 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC2,373,903$409m0.14%Added+1,551,12714 Aug 2026 (the filing on sec.gov)
MFS Investment Management1,842,583$321m0.10%Added+69,9823 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC1,736,405$299munder 0.1%Added+984,8012 Sep 2026 (the filing on sec.gov)
Capital Research Global Investors1,508,563$260munder 0.1%Trimmed-2,501,98712 Aug 2026 (the filing on sec.gov)
Point72 Asset Management LP1,361,162$234m0.26%Newnew14 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)660,432$114munder 0.1%Added+534,93813 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC627,569$108m0.07%Added+26,47927 Oct 2026 (the filing on sec.gov)
Renaissance Technologies LLC447,900$77m0.11%Added+281,10013 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC396,719$68munder 0.1%Added+384,90914 Aug 2026 (the filing on sec.gov)
Millennium Management LLC272,772$47munder 0.1%Added+11,35114 Aug 2026 (the filing on sec.gov)
Balyasny Asset Management LLC192,607$33munder 0.1%Added+190,13814 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp192,530$33munder 0.1%Added+145,54114 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP171,118$32munder 0.1%Added+1,28914 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP183,096$32munder 0.1%Added+93,11114 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP138,624$24munder 0.1%Newnew13 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC138,416$24munder 0.1%Added+99,20114 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.126,273$22munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC112,617$19m0.07%Added+102,13714 Aug 2026 (the filing on sec.gov)
Man Group PLC83,400$14munder 0.1%Trimmed-78,10514 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP70,231$12munder 0.1%Added+46,03214 Aug 2026 (the filing on sec.gov)
Verition Fund Management LLC46,068$7.9munder 0.1%Trimmed-24,39514 Aug 2026 (the filing on sec.gov)
Woodline Partners LP36,348$6.3munder 0.1%Added+4,08814 Aug 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, 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 (7)

Exited (1)

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.
6 in Q3 2024 to 16 in Q2 2026

Tracked managers listing it, at least.

051015202014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ATO by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20134$121mn.a.n.a.
Q3 20131$111mn.a.n.a.
Q4 20131$117mn.a.n.a.
Q1 20143$102mn.a.n.a.
Q2 20143$159mn.a.n.a.
Q3 20146$162mn.a.n.a.
Q4 20144$162mn.a.n.a.
Q1 20155$98mn.a.n.a.
Q2 20154$70mn.a.n.a.
Q3 20155$360mn.a.n.a.
Q4 20155$413mn.a.n.a.
Q1 20169$747mn.a.n.a.
Q2 20166$473mn.a.n.a.
Q3 20166$424mn.a.n.a.
Q4 20168$420mn.a.n.a.
Q1 20176$424mn.a.n.a.
Q2 20174$481mn.a.n.a.
Q3 20178$534mn.a.n.a.
Q4 20178$516mn.a.n.a.
Q1 20186$675mn.a.n.a.
Q2 20185$677mn.a.n.a.
Q3 20184$670mn.a.n.a.
Q4 201810$1.0bnn.a.n.a.
Q1 20198$1.2bnn.a.n.a.
Q2 20198$1.2bnn.a.n.a.
Q3 201911$1.3bnn.a.n.a.
Q4 20199$1.0bnn.a.n.a.
Q1 202010$869mn.a.n.a.
Q2 20208$1.2bnn.a.n.a.
Q3 20208$1.1bnn.a.n.a.
Q4 202010$520mn.a.n.a.
Q1 20216$217mn.a.n.a.
Q2 20216$435mn.a.n.a.
Q3 20214$408mn.a.n.a.
Q4 20217$726mn.a.n.a.
Q1 20225$543mn.a.n.a.
Q2 202213$686mn.a.n.a.
Q3 202214$1.5bnn.a.n.a.
Q4 202213$1.6bnn.a.n.a.
Q1 202312$1.6bnn.a.n.a.
Q2 202310$1.6bnn.a.n.a.
Q3 202310$1.5bnn.a.n.a.
Q4 202311$1.9bn102
Q1 20248$2.0bn62
Q2 202411$2.7bn100
Q3 20246$3.9bn52
Q4 20249$3.8bn35
Q1 20259$4.0bn45
Q2 20259$4.0bn73
Q3 20258$4.3bn53
Q4 20257$3.7bn1215
Q1 202611$4.3bn1911
Q2 202616$4.4bn268

Compare with…

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

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

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 ATO, latest filings →Back to the 13F Explorer →