GP-Act III Acquisition Corp.
GPAT- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0001834526
No open-market purchases or sales by GP-Act III Acquisition Corp. insiders were filed in the last 90 days; 24 institutions reported holding it in 13F filings for Q2 2026, worth $96.2M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in GP-Act III Acquisition Corp. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 52
- +5 vs. Q2 2025
- Shares held
- 28.0M
- +160.7K (+0.6%) vs. Q2 2025
- Total value
- $297.2M
- +$3.22M (+1.1%) vs. Q2 2025
- New holders
- 7
- 9 more added
- Sold out
- 2
- 12 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GPAT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 24 | $96.2M |
| Q1 2026 | 51 | $287.8M |
| Q4 2025 | 52 | $305.7M |
| Q3 2025 | 52 | $297.2M |
| Q2 2025 | 48 | $294.1M |
| Q1 2025 | 40 | $269.5M |
| Q4 2024 | 42 | $266.8M |
| Q3 2024 | 37 | $248.5M |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding GP-Act III Acquisition Corp.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Karpus Management, Inc. | 2,306,816 | $24.5M | 0.77% | −32,200−1.4% | Reduced |
| Vivaldi Asset Management, LLC | 2,091,077 | $22.2M | 1.43% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 1,875,000 | $19.9M | 0.25% | 00.0% | Unchanged |
| Alberta Investment Management Corp | 1,625,000 | $17.2M | 0.13% | 00.0% | Unchanged |
| CNH Partners LLC | 1,576,119 | $16.7M | 0.42% | −9,000−0.6% | Reduced |
| D. E. Shaw & Co., Inc. | 1,423,125 | $15.1M | 0.01% | 00.0% | Unchanged |
| HGC Investment Management Inc. | 1,375,000 | $14.6M | 3.55% | 00.0% | Unchanged |
| MMCAP International Inc. SPC | 1,275,000 | $13.5M | 1.57% | 00.0% | Unchanged |
| LMR Partners LLP | 1,225,000 | $13.0M | 0.17% | 00.0% | Unchanged |
| Polar Asset Management Partners Inc. | 1,174,996 | $12.5M | 0.25% | 00.0% | Unchanged |
| Westchester Capital Management, LLC | 1,110,852 | $11.8M | 0.61% | −50,000−4.3% | Reduced |
| Wealthspring Capital LLC | 1,031,863 | $10.9M | 2.60% | −27,179−2.6% | Reduced |
| Wolverine Asset Management LLC | 954,866 | $10.1M | 0.15% | +453,866+90.6% | Added |
| Toronto Dominion Bank | 861,649 | $9.13M | 0.02% | +435,989+102.4% | Added |
| Linden Advisors LP | 797,584 | $8.45M | 0.06% | +797,584 | New |
| Tenor Capital Management Co., L.P. | 750,000 | $7.95M | 0.10% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 625,000 | $6.63M | 0.01% | 00.0% | Unchanged |
| Radcliffe Capital Management, L.P. | 572,895 | $6.07M | 0.38% | +425,152+287.8% | Added |
| Aristeia Capital LLC | 490,750 | $5.20M | 0.16% | 00.0% | Unchanged |
| Heights Capital Management, Inc | 421,175 | $4.46M | 1.42% | −38,326−8.3% | Reduced |
| Rivernorth Capital Management, LLC | 420,932 | $4.46M | 0.25% | −910−0.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 412,264 | $4.37M | 0.02% | 00.0% | Unchanged |
| UBS Oconnor LLC | 350,000 | $3.71M | 0.11% | +100,000+40.0% | Added |
| Periscope Capital Inc. | 344,000 | $3.65M | 0.89% | +109,000+46.4% | Added |
| Berkley W R Corp | 297,992 | $3.16M | 0.20% | 00.0% | Unchanged |
| Healthcare of Ontario Pension Plan Trust Fund | 295,938 | $3.14M | 0.01% | 00.0% | Unchanged |
| Deutsche Bank AG | 290,000 | $3.07M | 0.00% | 00.0% | Unchanged |
| Glazer Capital, LLC | 260,100 | $2.76M | 0.09% | 00.0% | Unchanged |
| Meteora Capital, LLC | 251,030 | $2.66M | 0.28% | −1,675,969−87.0% | Reduced |
| Jain Global LLC | 250,000 | $2.65M | 0.03% | 00.0% | Unchanged |
| Verition Fund Management LLC | 227,624 | $2.41M | 0.01% | +4,974+2.2% | Added |
| Moore Capital Management, LP | 200,000 | $2.12M | 0.04% | 00.0% | Unchanged |
| Mizuho Securities USA LLC | 200,000 | $2.10M | 0.04% | −107,200−34.9% | Reduced |
| Goldman Sachs Group Inc | 137,823 | $1.46M | 0.00% | +399+0.3% | Added |
| Shaolin Capital Management LLC | 100,000 | $1.06M | 0.05% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 80,000 | $848.0K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 64,977 | $688.8K | 0.17% | −50,275−43.6% | Reduced |
| JPMorgan Chase & Co | 49,734 | $527.2K | 0.00% | −175,541−77.9% | Reduced |
| Dakota Wealth Management | 48,400 | $513.0K | 0.01% | 00.0% | Unchanged |
| Kepos Capital LP | 42,500 | $451.0K | 2.40% | 00.0% | Unchanged |
| Robinson Capital Management, LLC | 22,250 | $235.8K | 0.17% | 00.0% | Unchanged |
| Wellspring Financial Advisors, LLC | 21,200 | $224.7K | 0.02% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 19,191 | $203.4K | 0.00% | +19,191 | New |
| Citadel Advisors LLC | 18,766 | $198.9K | 0.00% | +722+4.0% | Added |
| TrueMark Investments, LLC | 16,838 | $178.5K | 0.03% | +16,838 | New |
| UBS Group AG | 11,157 | $118.3K | 0.00% | +3,124+38.9% | Added |
| Condor Capital Management | 10,632 | $112.7K | 0.01% | −886−7.7% | Reduced |
| Cannon Global Investment Management, LLC | 10,500 | $111.3K | 0.28% | +10,500 | New |
| Clear Street Group Inc. | 10,321 | $109.4K | 0.00% | +10,321 | New |
| Bank of America Corp | 8,000 | $84.8K | 0.00% | +8,000 | New |
| Longfellow Investment Management Co LLC | 7,800 | $82.7K | 0.02% | +7,800 | New |
| Morgan Stanley | 56 | $594 | 0.00% | −79−58.5% | Reduced |
| Virtu Financial LLC | 0 | $0 | 0.00% | −58,731−100.0% | Sold out |
| Bardin Hill Management Partners LP | 0 | $0 | 0.00% | −16,474−100.0% | Sold out |
| Clear Street LLC | – | – | – | – | Not filed |