Comparable stake leader
Osprey Acquisition Sponsor III LLC
SEC ownership of Osprey Acquisition Corp. III
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002113481.
Disclosed value leader
MMCAP International Inc. SPC
Comparable rows
5/25
Latest evidence
30 Sep 2026
- Public ticker
- OSPR, OSPRU, OSPRW on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Osprey Acquisition Sponsor III LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
5 of 25
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Osprey Acquisition Sponsor III LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002113481
- Issuer location
- Philadelphia, PA
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 Osprey Acquisition Corp. III (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
Osprey Acquisition Sponso...
Disclosed value leader
MMCAP International Inc. SPC
Comparable rows
5/25
Latest evidence
30 Sep 2026
3/4/5
13D/G
13F
Lead comparable stake: 26%
20 rows are not safely comparable across share classes.
13D/G row: Osprey Acquisition Sponsor III LLC
Showing 1-8 of 25 holder rows.
Quick read
Osprey Acquisition Sponsor III LLC leads the comparable SEC ownership view at 26%.
5 of 25 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 Osprey Acquisition Sponsor III LLC's linked filing trail.
Comparable ownership
Top 5
Osprey Acquisition Sponsor III LLC
26%
Magnetar Financial LLC
6.5%
MMCAP International Inc. SPC
6.1%
GOLDMAN SACHS GROUP INC
5.8%
Linden Capital L.P.
5.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 25 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Osprey Acquisition Sponsor III LLC |
3/4/5
13D/G
10%+ Owner
|
26%
Reported 13D/G
· 30 Jun 2026
|
—
486,000 shares
|
— | 30 Jun 2026 |
| Magnetar Financial LLC |
13F
13D/G
Company
|
6.5%
Reported 13D/G
· 30 Sep 2026
|
$19,857,500
2,666,665 shares
mixed-class rows
|
— | 30 Sep 2026 |
| MMCAP International Inc. SPC |
13F
13D/G
Company
|
6.1%
Reported 13D/G
· 01 Jul 2026
|
$21,978,000
2,200,000 shares
|
— | 30 Sep 2026 |
| GOLDMAN SACHS GROUP INC |
13D/G
THE GOLDMAN SACHS GROUP, INC.
|
5.8%
Reported 13D/G
· 30 Sep 2026
|
$17,439,750
1,775,942 shares
|
$0 | 30 Sep 2026 |
| Linden Capital L.P. |
13D/G
Linden Advisors LP
|
5.7%
Reported 13D/G
· 07 Jul 2026
|
—
1,750,000 shares
|
$0 | 07 Jul 2026 |
| Edward E. Cohen |
3/4/5
Director, 10%+ Owner
|
—
denominator unverified
|
—
486,000 shares
|
— | 30 Jun 2026 |
| Jonathan Z. Cohen |
3/4/5
Director, 10%+ Owner
|
—
denominator unverified
|
—
486,000 shares
|
— | 30 Jun 2026 |
| Alberta Investment Management Corp |
13F
Company
|
—
denominator unverified
|
$11,940,000
1,200,000 shares
|
— | 30 Sep 2026 |
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
No eligible buy or sell activity is available for this window. No eligible Buy or Sell transactions are available in this dataset since 15 Nov 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 1-11 of 11 reporting-owner rows connected to Osprey Acquisition Corp. III. Open a relationship link for the CIK-to-CIK filing trail.
Rows
11
Largest Forms 3/4/5 holder
Atul Khanna
Net 12M change
$0
Latest report
30 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Atul Khanna | Director | Mixed | 30 Jun 2026 | |||
| Brian L. Frank | Director | Mixed | 30 Jun 2026 | |||
| David Martin Heikkinen | President and CEO | Mixed | 30 Jun 2026 | |||
| Daniel C. Herz | Director | Mixed | 30 Jun 2026 | |||
| Edward E. Cohen | Director, 10%+ Owner | Mixed | 30 Jun 2026 | |||
| Jeffrey F. Brotman | Chief Operating Officer & CLO | Mixed | 30 Jun 2026 | |||
| Jonathan Z. Cohen | Director, 10%+ Owner | Mixed | 30 Jun 2026 | |||
| Thomas C. Elliott | Chief Financial Officer | Mixed | 30 Jun 2026 | |||
| Osprey Acquisition Sponsor III LLC | 10%+ Owner | Mixed | 30 Jun 2026 | |||
| Jeffrey Clifford | Director | Mixed | 30 Jun 2026 | |||
| Jeffrey F. Kupfer | Director | Mixed | 30 Jun 2026 |
Recent insider transactions for Osprey Acquisition Corp. III
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Osprey Acquisition Sponsor III LLC | Class A Ordinary Shares | 0 | 486,000 | 30 Jun 2026 | Direct | |||||
| Jonathan Z. Cohen | Class A Ordinary Shares | 0 | 486,000 | 30 Jun 2026 | By Osprey Acquisition Sponsor III, LLC | |||||
| Edward E. Cohen | Class A Ordinary Shares | 0 | 486,000 | 30 Jun 2026 | By Osprey Acquisition Sponsor III, LLC |
* marks a reported price that did not pass the local price check.