As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Nuveen Mortgage and Income Fund. The largest reported stake is Sit Investment Associates, Inc.'s, at 16.8%. 5 filings are on record since October 2, 2025 (Schedule 13G/A, May 5, 2026).
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Key facts
- · Reporting person: Ameriprise Financial, Inc. · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 368,549 · SCHEDULE 13G/A, 2026-08-14
- · Holder: Ameriprise Financial, Inc. · Percent: 5.4% · SCHEDULE 13G
- · Reporting person: Sit Investment Associates, Inc. · Sole voting: 0 · Shared voting: 918,869 · Sole dispositive: 0 · Shared dispositive: 918,869 · SCHEDULE 13G/A, 2026-05-05
- · Reporting person: First Trust Portfolios L.P. · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 219,360 · SCHEDULE 13G/A, 2026-04-30
- · Holder: Sit Investment Associates, Inc. · Percent: 22.4% · SCHEDULE 13G/A
Nuveen Mortgage and Income Fund has 5 Schedule 13D or 13G filings on record since 2025-10-02. 2 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Sit Investment Associates, Inc. | 16.8% | 918,869 | SCHEDULE 13G/A, 2026-05-05 | 2026-04-30 |
| Ameriprise Financial, Inc. | 6.7% | 368,549 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| First Trust Portfolios L.P. | 4.66% | 255,236 | SCHEDULE 13G/A, 2026-04-30 | 2026-03-31 |
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More on Nuveen Mortgage and Income Fund and the records around it.
Nuveen Mortgage and Income Fund elsewhere on the record
Companies that share a holder
- Ameriprise Financial, Inc. also filed stake reports on 65 other companies: Universal Electronics Inc. (Sep 2026), America's Car-Mart, Inc. (Aug 2026), Ampco-Pittsburgh Corporation (Aug 2026)
- Sit Investment Associates, Inc. also filed stake reports on 67 other companies: TCW STRATEGIC INCOME FUND INC (Nov 2026), Western Asset Premier Bond Fund (Nov 2026), Blackstone Long-Short Credit Income Fund (Oct 2026)
- First Trust Portfolios L.P. also filed stake reports on 105 other companies: First Trust Exchange-Traded Fund (Nov 2026), First Trust Exchange-Traded Fund IV (Nov 2026), First Trust Exchange-Traded Fund VIII (Nov 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Sit Investment Associates, Inc. | 0 | 918,869 | 0 | 918,869 | SCHEDULE 13G/A, 2026-05-05 |
| Sit Fixed Income Advisors II, LLC | 0 | 918,869 | 0 | 918,869 | SCHEDULE 13G/A, 2026-05-05 |
| Ameriprise Financial, Inc. | 0 | 0 | 0 | 368,549 | SCHEDULE 13G/A, 2026-08-14 |
| Ameriprise Financial Services, LLC | 0 | 0 | 0 | 368,549 | SCHEDULE 13G/A, 2026-08-14 |
| First Trust Portfolios L.P. | 0 | 0 | 0 | 219,360 | SCHEDULE 13G/A, 2026-04-30 |
| First Trust Advisors L.P. | 0 | 35,876 | 0 | 255,236 | SCHEDULE 13G/A, 2026-04-30 |
| The Charger Corporation | 0 | 35,876 | 0 | 255,236 | SCHEDULE 13G/A, 2026-04-30 |
The latest filing identifies Nuveen Mortgage and Income Fund by CUSIP 670735109 and gives its principal executive office as 333 West Wacker Drive, Chicago, IL 60606 (SCHEDULE 13G/A, 2026-08-14).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-10-02 | Sit Investment Associates, Inc. | 22.4% | SCHEDULE 13G/A |
| 2026-04-30 | First Trust Portfolios L.P. | 4.66% | SCHEDULE 13G/A |
| 2026-05-05 | Sit Investment Associates, Inc. | 16.8% | SCHEDULE 13G/A |
| 2026-05-15 | Ameriprise Financial, Inc. | 5.4% | SCHEDULE 13G |
| 2026-08-14 | Ameriprise Financial, Inc. | 6.7% | SCHEDULE 13G/A |
Questions about who owns Nuveen Mortgage and Income Fund
Who owns Nuveen Mortgage and Income Fund?
On this page, 2 holders' latest ownership filings report 5% or more of Nuveen Mortgage and Income Fund: Sit Investment Associates, Inc. (16.8%, Schedule 13G/A, filed 2026-05-05) and Ameriprise Financial, Inc. (6.7%, Schedule 13G/A, filed 2026-08-14).
Who are the largest shareholders of Nuveen Mortgage and Income Fund?
By the share each holder's latest filing reports, the largest holders of Nuveen Mortgage and Income Fund on this page are Sit Investment Associates, Inc. (16.8%) and Ameriprise Financial, Inc. (6.7%).
When did Sit Investment Associates, Inc. buy into Nuveen Mortgage and Income Fund?
The filings give report dates, not purchase dates. The earliest filing from Sit Investment Associates, Inc. on this page is the Schedule 13G/A, filed 2025-10-02, reporting 22.4%; its latest, Schedule 13G/A filed 2026-05-05, reports 16.8%. 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%); 5 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.