Filer Snapshot

Magellan Midstream Partners, L.P.

CIK 0001126975. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Company

Total filings

1,755

Latest filing

06 Aug 2025

Industry

Pipe Lines (No Natural Gas)

Filing-backed research brief

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Largest parsed holding

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13D/G large stake

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Source: SEC filing POSASR

POSASR filed on 06 Aug 2025 for CIK 0001126975.

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Identity
Industry
Pipe Lines (No Natural Gas) (Office Of Energy & Transportation)
Business address
One Williams Center, Md 28 1, Tulsa, OK, 74172
SEC record
State of incorporation
DE
Fiscal year end
31 December
Former names
MAGELLAN MIDSTREAM PARTNERS LP (to 02 Jul 2019), WILLIAMS ENERGY PARTNERS L P (to 25 Aug 2003)

Filer intelligence

What SEC filings say about Magellan Midstream Partners, L.P.

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

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SEC source mix

Counts show available parsed rows, not one combined ownership total.

No XML rows yet
13F portfolio No rows yet

Quarterly institutional portfolio holdings.

13D/G stakes No rows yet

Beneficial ownership and large-stake disclosures.

Forms 3/4/5 No rows yet

Officer, director, and 10% owner holdings or transactions.

No parsed ownership summary yet

We still show the SEC filing timeline below. The intelligence summary will populate when parsed 13F, 13D/G, or Forms 3/4/5 data exists for this CIK.

Latest update

What changed recently for Magellan Midstream Partners, L.P.

New fact period available

Latest financial period: Q2 2023. Open the source-backed page to inspect the fresh filing or facts context.

Update date

03 Aug 2023

Page type

Company facts

Latest period

Q2 2023

SEC-backed company facts were refreshed from filings filed on 03 Aug 2023.

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Benchmark Context

Benchmark context for this company

Magellan Midstream Partners, L.P. has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

Compared with

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Why this is notable

Latest financial period: Q2 2023. That gives you a fresh baseline before you compare this company with peers.

  • Latest company facts filing date: 03 Aug 2023.
  • Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
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SEC filing record

CIK 0001126975 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
1,755
First seen
30 Oct 2000
Latest filing
06 Aug 2025
Entity
Company

Observed form types

POSASR 15-12G S-8 POS 4 8-K 25-NSE 425 PX14A6G DEFA14A 10-Q +19 more

Primary evidence

Open SEC filing index Magellan Midstream Partners, L.P. SEC filings Magellan Midstream Partners, L.P. insider transactions Magellan Midstream Partners, L.P. company facts

Industry context: Pipe Lines (No Natural Gas).

Latest Filings

Showing the latest 12 of 1,000 SEC filings for Magellan Midstream Partners, L.P..

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POSASR File 333-272782-03

POSASR

Filing date
06 Aug 2025
Reporting date
Not listed
Next action
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POSASR File 333-272782-03

POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3

Filing date
10 Sep 2024
Reporting date
Not listed
Next action
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15-12G File 001-16335

FORM 15-12G

Filing date
11 Oct 2023
Reporting date
Not listed
SEC evidence
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S-8 POS File 333-212836

POST-EFFECTIVE AMENDMENT TO FORM S-8

Filing date
11 Oct 2023
Reporting date
Not listed
SEC evidence
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S-8 POS File 333-255623

POST-EFFECTIVE AMENDMENT TO FORM S-8

Filing date
11 Oct 2023
Reporting date
Not listed
SEC evidence
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S-8 POS File 333-176062

POST-EFFECTIVE AMENDMENT TO FORM S-8

Filing date
11 Oct 2023
Reporting date
Not listed
SEC evidence
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S-8 POS File 333-147206

POST-EFFECTIVE AMENDMENT TO FORM S-8

Filing date
11 Oct 2023
Reporting date
Not listed
SEC evidence
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S-8 POS File 333-71670

POST-EFFECTIVE AMENDMENT TO FORM S-8

Filing date
11 Oct 2023
Reporting date
Not listed
SEC evidence
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POSASR File 333-253266

POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3

Filing date
11 Oct 2023
Reporting date
Not listed
SEC evidence
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4

4 filing

Filing date
27 Sep 2023
Reporting date
25 Sep 2023
SEC evidence
Open document Open filing
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4

4 filing

Filing date
27 Sep 2023
Reporting date
25 Sep 2023
SEC evidence
Open document Open filing
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4

4 filing

Filing date
27 Sep 2023
Reporting date
25 Sep 2023
SEC evidence
Open document Open filing
Next action
Verify source filing
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