As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Telephone and Data Systems, Inc. The largest reported stake is The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989's, at 11.7%. 11 filings are on record since August 5, 2025 (Schedule 13D/A, September 2, 2026).
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Key facts
- · Reporting person: The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 · Sole voting: 0 · Shared voting: 13,519,478 · Sole dispositive: 0 · Shared dispositive: 13,519,478 · SCHEDULE 13D/A, 2026-09-02
- · Reporting person: Picton Mahoney Asset Management · Sole voting: 1,880,616 · Shared voting: 0 · Sole dispositive: 1,880,616 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-11
- · Holder: The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 · Percent: 11.9% · SCHEDULE 13D/A
- · Holder: Vanguard Portfolio Management · Percent: 5.92% · SCHEDULE 13G
- · Holder: Picton Mahoney Asset Management · Percent: 10.06% · SCHEDULE 13G/A
Telephone and Data Systems, Inc. has 11 Schedule 13D or 13G filings on record since 2025-08-05. 3 holders' latest filing reports 5% or more of common shares ($0.01 par value). Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 | 11.7% | 13,519,478 | SCHEDULE 13D/A, 2026-09-02 | 2026-09-01 |
| Picton Mahoney Asset Management | 11.2% | 1,880,616 | SCHEDULE 13G/A, 2026-08-11 | 2026-06-30 |
| Vanguard Portfolio Management | 5.92% | 6,303,052 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
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More on Telephone and Data Systems, Inc. and the records around it.
Telephone and Data Systems, Inc. elsewhere on the record
Companies that share a holder
- Picton Mahoney Asset Management also filed stake reports on 20 other companies: Blue Water Acquisition Corp. III (Oct 2026), Launch One Acquisition Corp. (Oct 2026), Pono Capital Four, Inc. (Oct 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- The Vanguard Group also filed stake reports on 2384 other companies: BellRing Brands, Inc. (Sep 2026), CAL-MAINE FOODS INC (Sep 2026), FTAI Aviation Ltd. (Sep 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 | 0 | 13,519,478 | 0 | 13,519,478 | SCHEDULE 13D/A, 2026-09-02 |
| Picton Mahoney Asset Management | 1,880,616 | 0 | 1,880,616 | 0 | SCHEDULE 13G/A, 2026-08-11 |
The latest filing identifies Telephone and Data Systems, Inc. by CUSIP 879433829 and gives its principal executive office as 30 North LaSalle, Suite 4000, Chicago, IL 60602 (SCHEDULE 13D/A, 2026-09-02).
Source of funds (Item 3)
The information contained in Item 4 below is incorporated herein by reference.The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989, SCHEDULE 13D/A, 2026-09-02
Purpose of Transaction (Item 4)
The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989
This Item 4 is being updated by the following information. On September 1, 2026, the Issuer issued a press release (the "Press Release") announcing that it is no longer pursuing the acquisition of the Array Common Shares that it does not already own and has withdrawn its previously disclosed proposal. Under the terms of that proposal, each Array Common Share not already owned by the Issuer would have been exchanged for 0.86 of a TDS Common Share, subject to the assumptions set forth in the Proposal. The Issuer will retain its approximately 82% ownership interest in Array. A copy of the Press Release is filed herewith as Exhibit 2. The Issuer may in the future recommence its efforts to acquire the Array Common Shares it does not own or pursue other potential transactions involving the Issuer and Array and may, from time to time, acquire additional Array Common Shares or engage in discussions with Array or members of its Board of Directors regarding any such transactions. Except as disclosed or incorporated by reference herein, the Voting Trust does not have any current intention, plan or proposal with respect to any of the matters specified in paragraphs (a) through (j) of Item 4 of Schedule 13D. The Trustees intend to maintain the ability to keep or dispose of the voting control of the Issuer. The Trustees intend that the Issuer maintain the ability to keep or dispose of the voting control of Array. The Trustees also retain the right to change their intent, to acquire …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-09-02; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-05 | Telephone & Data Systems Inc Voting Trust 1989 | 11.7% | SCHEDULE 13D/A |
| 2025-08-06 | Picton Mahoney Asset Management | 5.94% | SCHEDULE 13G |
| 2025-08-18 | Picton Mahoney Asset Management | 7.1% | SCHEDULE 13G/A |
| 2025-10-15 | Picton Mahoney Asset Management | 8.1% | SCHEDULE 13G/A |
| 2026-01-30 | The Vanguard Group | 10.53% | SCHEDULE 13G/A |
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-27 | Picton Mahoney Asset Management | 10.06% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Portfolio Management | 5.92% | SCHEDULE 13G |
| 2026-05-08 | The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 | 11.9% | SCHEDULE 13D/A |
| 2026-08-11 | Picton Mahoney Asset Management | 11.2% | SCHEDULE 13G/A |
| 2026-09-02 | The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 | 11.7% | SCHEDULE 13D/A |
Questions about who owns Telephone and Data Systems, Inc.
Who owns Telephone and Data Systems, Inc.?
On this page, 3 holders' latest ownership filings report 5% or more of Telephone and Data Systems, Inc.: The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 (11.7%, Schedule 13D/A, filed 2026-09-02), Picton Mahoney Asset Management (11.2%, Schedule 13G/A, filed 2026-08-11) and Vanguard Portfolio Management (5.92%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of Telephone and Data Systems, Inc.?
By the share each holder's latest filing reports, the largest holders of Telephone and Data Systems, Inc. on this page are The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 (11.7%), Picton Mahoney Asset Management (11.2%) and Vanguard Portfolio Management (5.92%).
When did The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 buy into Telephone and Data Systems, Inc.?
The filings give report dates, not purchase dates. The earliest filing from The Trustees of Amendment and Restatement (dated as of April 22, 2005) of Voting Trust under Agreement dated as of June 30, 1989 on this page is the Schedule 13D/A, filed 2026-05-08, reporting 11.9%; its latest, Schedule 13D/A filed 2026-09-02, reports 11.7%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 11 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.