13F reference period
Q2 2026
Security Snapshot
GP-Act III Acquisition Corp. - Class A Ordinary Shares, par value $0.0001 per share ("Ordinary Shares") (GPAT) Institutional Ownership
CUSIP: G4035N103
13F Institutional Holders and Ownership History from Q3 2024 to Q2 2026
Institutions Reporting
24
Shares (Excl. Options)
8.84M
Full value: 8,844,510 · shares · 30 Jun 2026Price
$10.87
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
Save this security page for your next review
Watchlists follow companies and investors, across their share classes. Bookmark this page to revisit this specific CUSIP and its quarterly holders. If you create an account from here, we will bring you back after verification.
- Security type / class
- Equity / Class A Ordinary Shares, par value $0.0001 per share ("Ordinary Shares")
- Symbol
- GPAT on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 8,844,510
- Total 13F value
- $96,215,695
- Portfolio coverage rank
- 0%
- Share change
- -17,709,254
- Value change
- -$192,093,044
- Number of holders
- 24
- Shares outstanding
- 16,166,282
- SEC-reported price per share
- $10.99
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- GPAT - GP-Act III Acquisition Corp. - Class A Ordinary Shares, par value $0.0001 per share ("Ordinary Shares") is tracked under CUSIP G4035N103.
- 24 institutions reported positions in Q2 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 51 to 24 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$287.82M
Full value: $287,820,089 · USD · 31 Mar 2026.$96.22M
Full value: $96,215,695 · USD · 30 Jun 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 24 institutions filings for Q2 2026.
Security key
G4035N103
13F reference period
Q2 2026
13F holders
24
13D/G owners
8
CIK / CUSIP context first
Open Q2 2026 holders
GPAT full holder history
GP-Act III Acquisition Corp. SEC filings
GP-Act III Acquisition Corp. company facts
GP-Act III Acquisition Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G4035N103:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
8
Security
GPAT
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| GP-Act III Sponsor LLC | 20% | $73,543,250 | 7,112,500 | GP-Act III Sponsor LLC | 14 Nov 2024 | |||
| HGC Investment Management Inc. | 8.6% | $25,591,500 | 2,475,000 | HGC Investment Management Inc | 31 Dec 2024 | |||
| METEORA CAPITAL, LLC | 6.7% | $20,329,839 | 1,926,999 | Meteora Capital, LLC | 30 Jun 2025 | |||
| PICTON MAHONEY ASSET MANAGEMENT | 6.5% | $19,387,500 | 1,875,000 | Picton Mahoney Asset Management | 30 Sep 2024 | |||
| Polar Asset Management Partners Inc. | 11% | +175% | $19,512,000 | +$6,775,043 | 1,800,000 | +53% | Polar Asset Management Partners Inc. | 31 May 2026 |
| BARCLAYS PLC | 5.2% | 0% | $15,365,126 | 1,485,989 | 0% | Barclays PLC | 30 Sep 2024 | |
| AQR CAPITAL MANAGEMENT LLC | 8.7% | $15,204,000 | 1,400,000 | AQR Capital Management, LLC | 30 Jun 2026 | |||
| MMCAP International Inc. SPC | 4.4% | -40% | $13,451,250 | -$8,440,000 | 1,275,000 | -39% | MMCAP International Inc. SPC | 30 Jun 2025 |
As of 30 Jun 2026,
24
institutional investors reported holding
shares of
GP-Act III Acquisition Corp. - Class A Ordinary Shares, par value $0.0001 per share ("Ordinary Shares") (GPAT).
This represents
55%
of the company’s total
outstanding shares.
8.84M
Full value: 8,844,510 · shares · 30 Jun 202616.17M
Full value: 16,166,282 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
55%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Polar Asset Management Partners Inc. | 11% | 1,800,000 | +53% | 0.36% | $19,566,000 |
| AQR Arbitrage LLC | 8.7% | 1,400,000 | -11% | 0.22% | $15,246,000 |
| MMCAP International Inc. SPC | 7.9% | 1,275,000 | 0% | 1.2% | $13,859,250 |
| Alberta Investment Management Corp | 6.2% | 1,000,000 | -38% | 0.06% | $10,890,000 |
| MIZUHO SECURITIES USA LLC | 3.5% | 558,486 | +829% | 0.09% | $6,031,649 |
| BERKLEY W R CORP | 3.1% | 497,064 | -41% | 0.27% | $5,413,027 |
| HGC Investment Management Inc. | 2.5% | 399,387 | 0.86% | $4,341,337 | |
| Verition Fund Management LLC | 2.5% | 398,885 | +75% | 0.03% | $4,343,858 |
| TORONTO DOMINION BANK | 2.1% | 345,181 | -46% | 0.01% | $3,752,117 |
| DEUTSCHE BANK AG\ | 1.8% | 290,000 | 0% | 0% | $3,146,500 |
| PICTON MAHONEY ASSET MANAGEMENT | 1.5% | 250,000 | -82% | 0.03% | $2,722,501 |
| Periscope Capital Inc. | 0.93% | 150,000 | -40% | 0.26% | $1,657,500 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 0.93% | 149,950 | 0% | $1,632,955 | |
| JPMORGAN CHASE & CO | 0.62% | 99,860 | -82% | 0% | $1,085,478 |
| Lineage Point Capital LP | 0.4% | 64,795 | -0.32% | 0.15% | $715,985 |
| MOORE CAPITAL MANAGEMENT, LP | 0.31% | 50,000 | -75% | 0.01% | $543,500 |
| Kepos Capital LP | 0.26% | 42,500 | 0% | 0.64% | $470,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.13% | 21,362 | +87% | 0% | $232,632 |
| CITADEL ADVISORS LLC | 0.12% | 20,039 | +17% | 0% | $218,225 |
| HRT FINANCIAL LP | 0.09% | 14,965 | 0% | $162,000 | |
| Clear Street Group Inc. | 0.06% | 9,195 | -11% | 0% | $99,950 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 0.05% | 7,800 | 0% | 0.02% | $84,786 |
| MORGAN STANLEY | 0% | 23 | -64% | 0% | $250 |
| UBS Group AG | 0% | 18 | -90% | 0% | $195 |
| Jain Global LLC | 0% | 0 | -100% | $0 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
8
Headline period
Q2 2026
Rows shown
1-8 of 8
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 8,844,510 | $96,215,695 | -$192,093,044 | $10.87 | 24 |
| 2026 Q1 | 26,553,764 | $287,820,089 | -$21,834,180 | $10.84 | 51 |
| 2025 Q4 | 28,592,186 | $305,696,913 | -$905,669 | $10.69 | 52 |
| 2025 Q3 | 28,464,967 | $301,709,090 | +$1,201,744 | $10.60 | 53 |
| 2025 Q2 | 27,893,423 | $294,132,103 | +$24,825,280 | $10.55 | 48 |
| 2025 Q1 | 26,156,583 | $269,542,525 | -$1,553,040 | $10.30 | 40 |
| 2024 Q4 | 26,307,572 | $266,800,243 | +$12,250,289 | $10.14 | 42 |
| 2024 Q3 | 24,657,456 | $248,498,703 | +$243,861,903 | $10.08 | 37 |