Latest 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)
8,844,510
Price
$10.87
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- 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
- $10.92
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
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 $287,820,089 to $96,215,695.
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
Latest holder 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 8,844,510 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 16,166,282 outstanding shares.
13F 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 |
| PNC Financial Services Group, Inc. | 0% | 0 | -100% | $0 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
8
Latest
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 |