Comparable stake leader
dMY Squared Sponsor, LLC
SEC ownership of dMY Squared Technology Group, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001915380.
Disclosed value leader
dMY Squared Sponsor, LLC
Comparable rows
6/7
Latest evidence
26 Sep 2025
- Parsed ownership sources
-
13D/G and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
dMY Squared Sponsor, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
6 of 7
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
dMY Squared Sponsor, LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
26 Sep 2025
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001915380
- Issuer location
- Las Vegas, NV
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of dMY Squared Technology Group, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
dMY Squared Sponsor, LLC
Disclosed value leader
dMY Squared Sponsor, LLC
Comparable rows
6/7
Latest evidence
26 Sep 2025
13D/G
3/4/5
Lead comparable stake: 30%
1 rows are not safely comparable across share classes.
13D/G row: dMY Squared Sponsor, LLC
Quick read
dMY Squared Sponsor, LLC leads the comparable SEC ownership view at 30%.
6 of 7 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens dMY Squared Sponsor, LLC's linked filing trail.
Comparable ownership
Top 5
dMY Squared Sponsor, LLC
30%
Shay Capital LLC
5.4%
PERISCOPE CAPITAL INC.
4.8%
METEORA CAPITAL, LLC
3.9%
Sandia Investment Management LP
3.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-7 of 7 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| dMY Squared Sponsor, LLC |
13D/G
3/4/5
Director, 10%+ Owner
|
30%
|
$15,032,213
1,163,484 shares
|
$0 | 15 Sep 2025 |
| Shay Capital LLC |
13D/G
|
5.4%
|
$1,738,729
125,359 shares
|
$0 | 26 Sep 2025 |
| PERISCOPE CAPITAL INC. |
13D/G
|
4.8%
|
$1,452,375
112,500 shares
|
-$779,764 | 31 Mar 2025 |
| METEORA CAPITAL, LLC |
13D/G
|
3.9%
|
$1,177,837
90,607 shares
|
-$1,278,855 | 30 Jun 2025 |
| Sandia Investment Management LP |
3/4/5
13D/G
10%+ Owner
|
3.4%
from 13D/G
|
$3,300,177
312,813 shares
|
— | 08 Oct 2024 |
| BANK OF MONTREAL /CAN/ |
13D/G
Bank of Montreal
|
1.3%
|
$393,973
30,307 shares
|
-$1,328,448 | 01 Jul 2025 |
| Harry L. You |
3/4/5
Chairman and Co-Chief Executive Officer, Director, 10%+ Owner
|
—
class O/S missing
|
—
1,725,000 shares
|
— | 29 Sep 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 29 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-8 of 8 reporting-owner rows connected to dMY Squared Technology Group, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
8
Largest Forms 3/4/5 holder
dMY Squared Sponsor, LLC
Net 12M change
$0
Latest report
19 Mar 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| dMY Squared Sponsor, LLC | Director, 10%+ Owner | $14,636,628 | Mixed | 19 Mar 2026 | ||
| Sandia Investment Management LP | 10%+ Owner | $3,300,177 | Filing P/S | 08 Oct 2024 | ||
| Charles Wert | Director | Mixed | 29 Sep 2022 | |||
| Constance K. Weaver | Director | Mixed | 29 Sep 2022 | |||
| Darla Anderson | Director | Mixed | 29 Sep 2022 | |||
| Harry L. You | Chairman and Co-Chief Executive Officer, Director, 10%+ Owner | Mixed | 29 Sep 2022 | |||
| Niccolo de Masi | Co-Chief Executive Officer, Director | Mixed | 29 Sep 2022 | |||
| Francesca Luthi | Director | Mixed | 29 Sep 2022 |
Recent insider transactions for dMY Squared Technology Group, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| dMY Squared Sponsor, LLC | DMYY | Class A Common Stock | Conversion of derivative security | 1,163,484 | 1,163,484 | 19 Mar 2026 | Direct | |||
| dMY Squared Sponsor, LLC | DMYY | Class B Common Stock | Conversion of derivative security | -100% | -1,163,484 | 0 | 19 Mar 2026 | Direct | ||
| dMY Squared Sponsor, LLC | DMYY | Class B Common Stock | Other | -26.4% | -416,266 | 1,163,484 | 15 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.