As of November 6, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of Adamas Trust, Inc. The largest reported stake is BlackRock, Inc.'s, at 15.3%. 3 filings are on record since July 17, 2025 (Schedule 13G/A, July 17, 2025).
Sell to companies like Adamas Trust, Inc? Enter your website and see 10 with a filed reason to buy from you this month. Free.
Opens in a new tab. No signup.
Key facts
- · Reporting person: Amster Howard · Sole voting: 2,026,093 · Shared voting: 4,381,764 · Sole dispositive: 2,026,093 · Shared dispositive: 4,381,764 · SCHEDULE 13D/A, 2026-08-25
- · Holder: The Vanguard Group · Percent: 0% · SCHEDULE 13G/A
- · Reporting person: BlackRock, Inc. · Sole voting: 13,621,986 · Shared voting: 0 · Sole dispositive: 13,842,837 · Shared dispositive: 0 · SCHEDULE 13G/A, 2025-07-17
Adamas Trust, Inc. has 3 Schedule 13D or 13G filings on record since 2025-07-17. 1 holder's latest filing reports 5% or more of common stock par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| BlackRock, Inc. | 15.3% | 13,842,837 | SCHEDULE 13G/A, 2025-07-17 | 2025-06-30 |
| 4.9% | 4,381,764 | SCHEDULE 13D/A, 2026-08-25 | 2026-08-20 | |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
Holding shares or following this stake? See who's behind Adamas Trust, Inc. and the warning signs.
Free to see. No signup.
Keep reading
More on Adamas Trust, Inc. and the records around it.
Companies that share a holder
- Amster Howard also filed stake reports on 4 other companies: REDWOOD TRUST INC (Sep 2026), CBL & ASSOCIATES PROPERTIES INC (Aug 2026), Wheeler Real Estate Investment Trust, Inc. (Feb 2026)
- BlackRock, Inc. also filed stake reports on 1596 other companies: AvePoint, Inc. (Nov 2026), BIOMARIN PHARMACEUTICAL INC (Nov 2026), MSG RANGERS CORP (Nov 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)
Watch Adamas Trust, Inc.
Get an email when Adamas Trust, Inc. files again: a new raise, a leadership change, a layoff or an IPO filing. One email first to confirm; nothing else until you click it. At most one a day, one click to stop. Free for up to 3 companies.
Want the whole picture on Adamas Trust, Inc.?
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
A Full Report on Adamas Trust, Inc.: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Adamas Trust, Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
3 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
A real finished report, first screen. Opens in a new tab.
Not ready to order yet? Keep this snapshot.
Sends this preview to you once; we won't add you to any list
Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13,621,986 | 0 | 13,842,837 | 0 | SCHEDULE 13G/A, 2025-07-17 |
| Amster Howard | 2,026,093 | 4,381,764 | 2,026,093 | 4,381,764 | SCHEDULE 13D/A, 2026-08-25 |
| Pleasant Lake Apartments Limited Partnership | 0 | 616,002 | 0 | 616,002 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2019 Charitable Remainder Trust #1 U/A Dtd 05/20/2019 | 0 | 267,919 | 0 | 267,919 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2019 Charitable Remainder Unitrust #2 U/A Dtd 05/20/2019 | 0 | 8,635 | 0 | 8,635 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2019 Charitable Remainder Unitrust #3 U/A Dtd 05/20/2019 | 0 | 3,432 | 0 | 3,432 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2019 Charitable Remainder Unitrust #4 U/A Dtd 05/20/2019 | 0 | 116,185 | 0 | 116,185 | SCHEDULE 13D/A, 2026-08-25 |
| Amster Limited Partnership | 0 | 223,688 | 0 | 223,688 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2019 Charitable Remainder Unitrust #7 U/A Dtd 05/20/2019 | 0 | 318 | 0 | 318 | SCHEDULE 13D/A, 2026-08-25 |
| Laughlin Holdings LLC | 0 | 223,529 | 0 | 223,529 | SCHEDULE 13D/A, 2026-08-25 |
| Ramat Securities Ltd | 0 | 249,491 | 0 | 249,491 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2021 Charitable Remainder Unitrust #3 U/A Dtd 11/23/2021 | 0 | 147,797 | 0 | 147,797 | SCHEDULE 13D/A, 2026-08-25 |
| Pleasant Lake Apartments Corp | 0 | 11,013 | 0 | 11,013 | SCHEDULE 13D/A, 2026-08-25 |
| Howrad Amster 2022 Charitable Remainder Unitrust #1 U/A Dtd 03/09/2022 | 0 | 75,205 | 0 | 75,205 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster Foundation | 0 | 345,471 | 0 | 345,471 | SCHEDULE 13D/A, 2026-08-25 |
| Newax Inc. | 0 | 45,397 | 0 | 45,397 | SCHEDULE 13D/A, 2026-08-25 |
| Pleasant Lake Skoien Investments LLC | 0 | 52,035 | 0 | 52,035 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2019 Charitable Remainder Unitrust #5 U/A Dtd 05/20/2019 | 0 | 25,968 | 0 | 25,968 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2021 Charitable Remainder Unitrust #1 U/A Dtd 08/10/2021 | 0 | 441 | 0 | 441 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster 2021 Charitable Remainder Unitrust #2 U/A Dtd 08/10/2021 | 0 | 2,632 | 0 | 2,632 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster And Tamra Gould Charitable Remainder Unitrust U/A Dtd 03/18/1993 | 0 | 110 | 0 | 110 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster Charitable Remainder Unitrust U/A Dtd 04/22/1998 | 0 | 265 | 0 | 265 | SCHEDULE 13D/A, 2026-08-25 |
| Howard Amster Charitable Remainder Unitrust U/A Dtd 01/11/2005 | 0 | 5,738 | 0 | 5,738 | SCHEDULE 13D/A, 2026-08-25 |
| Horizon Group Properties Inc. | 0 | 35,000 | 0 | 35,000 | SCHEDULE 13D/A, 2026-08-25 |
The latest filing identifies Adamas Trust, Inc. by CUSIP 649604840 and gives its principal executive office as 90 PARK AVENUE 23RD FLOOR, NEW YORK, NY 10016 (SCHEDULE 13D/A, 2026-08-25).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-17 | BlackRock, Inc. | 15.3% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-08-25 | Amster Howard | 4.9% | SCHEDULE 13D/A |
Questions about who owns Adamas Trust, Inc.
Who owns Adamas Trust, Inc.?
On this page, one holder's latest ownership filing reports 5% or more of Adamas Trust, Inc.: BlackRock, Inc. (15.3%, Schedule 13G/A, filed 2025-07-17).
When did BlackRock, Inc. buy into Adamas Trust, Inc.?
The filings give report dates, not purchase dates. The earliest filing from BlackRock, Inc. on this page is the Schedule 13G/A, filed 2025-07-17, reporting 15.3%. 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%); 3 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.
Tools for this story
Each opens in a new tab, filled in for Adamas Trust, Inc.. With no account yet, you sign up free and land on the result.
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.