Entity type
Company
Filer Snapshot
TELEPHONE & DATA SYSTEMS INC /DE/
CIK 0001051512. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.
Total filings
227
Latest filing
26 May 2026
Industry
Telephone Communications (No Radiotelephone)
Filing-backed research brief
Start with the SEC data that changes for this CIK
Latest signal: 13D/G stake for AD. Each card links back to the PortfolioSavvy page where the filing evidence is closest.
Latest 13F portfolio
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No parsed 13F portfolio row yet.
Browse latest 13FLargest parsed holding
—
Populates from the latest parsed 13F information table.
Open holding13D/G large stake
AD
07 May 2026 · 82% ownership
Open 13D/GInsider / owner context
—
No parsed Forms 3/4/5 owner position for this CIK.
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Source: SEC Forms 3/4/5
View source filing
4 filed on 26 May 2026 for CIK 0001051512.
- Listed symbols
- TDS, TDS-PU, TDS-PV on NYSE
- Parsed SEC ownership signals
-
Largest active 13D stakes
Active large-stake positions disclosed in parsed Schedule 13D filings.
USM ADHow to read these SEC ownership signals
- Read each filing family separately: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions answer different SEC disclosure questions.
- Open the linked research path when you need the filing, CIK, issuer, or CUSIP trail behind a value.
- SEC industry group
- Telephone Communications (No Radiotelephone) (Office of Technology)
- Business address
- 30 North Lasalle Street, Ste 4000, Chicago, IL, 60602
- Incorporated in
- DE
- Fiscal year end
- 31 December
Ownership signals
CIK-linked ownership evidence from parsed SEC filings.
1 signal
At a glance
Names, identifiers, and filing context for this profile.
2 identity fields
EDGAR profile Static EDGAR fields kept behind disclosure so the main profile stays readable. 2 profile fields available
Filer intelligence
What SEC filings say about TELEPHONE & DATA SYSTEMS INC /DE/
A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.
Quick read
- 1 recent 13D/G stake row found; top row is AD at 82% ownership.
SEC source mix
Counts show available parsed rows, not one combined ownership total.
13D/G large-stake context
AD
07 May 2026 · Common Shares ($1.00 par value)
Latest update
What changed recently for TELEPHONE & DATA SYSTEMS INC /DE/
Latest financial period: Q1 2026. Open the source-backed page to inspect the fresh filing or facts context.
Update date
08 May 2026
Page type
Company facts
Latest period
Q1 2026
SEC-backed company facts were refreshed from filings filed on 08 May 2026.
Benchmark Context
Benchmark context for this company
TELEPHONE & DATA SYSTEMS INC /DE/ 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
Start on the facts page for period-to-period context, then open a metric ranking when you want to compare the same reported fact across other SEC-reporting companies.
Why this is notable
Latest financial period: Q1 2026. That gives you a fresh baseline before you compare this company with peers.
- Latest company facts filing date: 08 May 2026.
- Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
- Open the facts page first if you want the cleanest path to verification.
Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.
SEC filing record
CIK 0001051512 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
227
First seen
12 May 2021
Latest filing
26 May 2026
Entity
Company
Observed form types
10-K
10-Q
10-Q/A
3
4
4/A
5
SCHEDULE 13D/A
Industry context: Telephone Communications (No Radiotelephone).
Latest Filings
Showing the latest 12 of 227 SEC filings for TELEPHONE & DATA SYSTEMS INC /DE/.
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 26 May 2026
- Reporting date
- 21 May 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing