GP-Act III Acquisition Corp.
GPATW- 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; 32 institutions reported holding it in 13F filings for Q2 2026, worth $2.54M 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
- 31
- +4 vs. Q2 2025
- Shares held
- 15.3M
- +161.7K (+1.1%) vs. Q2 2025
- Total value
- $4.07M
- −$802.8K (−16.5%) vs. Q2 2025
- New holders
- 4
- 3 more added
- Sold out
- 0
- 6 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 GPATW 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 | 32 | $2.54M |
| Q1 2026 | 32 | $1.82M |
| Q4 2025 | 32 | $3.54M |
| Q3 2025 | 31 | $4.07M |
| Q2 2025 | 28 | $4.94M |
| Q1 2025 | 27 | $3.00M |
| Q4 2024 | 29 | $2.23M |
| Q3 2024 | 28 | $1.62M |
| 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 |
|---|---|---|---|---|---|
| UBS Group AG | 273 | $71 | 0.00% | −60−18.0% | Reduced |
| Longfellow Investment Management Co LLC | 3,900 | $1.01K | 0.00% | +3,900 | New |
| Radcliffe Capital Management, L.P. | 13,070 | $3.46K | 0.00% | +13,070 | New |
| Schonfeld Strategic Advisors LLC | 15,000 | $3.90K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 30,923 | $8.04K | 0.00% | +30,923 | New |
| Heights Capital Management, Inc | 95,375 | $24.8K | 0.01% | −27,521−22.4% | Reduced |
| Moore Capital Management, LP | 100,000 | $26.0K | 0.00% | 00.0% | Unchanged |
| K2 Principal Fund, L.P. | 121,798 | $31.7K | 0.00% | 00.0% | Unchanged |
| Periscope Capital Inc. | 185,700 | $48.3K | 0.01% | 00.0% | Unchanged |
| Saba Capital Management, L.P. | 193,229 | $51.2K | 0.00% | 00.0% | Unchanged |
| Clear Street Group Inc. | 199,594 | $51.9K | 0.00% | +199,594 | New |
| Gritstone Asset Management LLC | 217,248 | $56.5K | 0.06% | −2,710−1.2% | Reduced |
| Toronto Dominion Bank | 225,000 | $58.5K | 0.00% | +25,000+12.5% | Added |
| Rivernorth Capital Management, LLC | 225,599 | $58.7K | 0.00% | 00.0% | Unchanged |
| Aristeia Capital LLC | 245,375 | $65.0K | 0.00% | 00.0% | Unchanged |
| Verition Fund Management LLC | 253,710 | $66.0K | 0.00% | +2,910+1.2% | Added |
| Highbridge Capital Management LLC | – | $93.1K | 0.00% | – | – |
| Linden Advisors LP | 360,400 | $95.5K | 0.00% | 00.0% | Unchanged |
| CNH Partners LLC | 463,173 | $116.3K | 0.00% | −30,923−6.3% | Reduced |
| Shaolin Capital Management LLC | 450,057 | $117.0K | 0.01% | +570.0% | Added |
| LMR Partners LLP | 612,500 | $159.3K | 0.00% | 00.0% | Unchanged |
| Wealthspring Capital LLC | 787,989 | $204.9K | 0.05% | −4,750−0.6% | Reduced |
| Alberta Investment Management Corp | 812,500 | $211.3K | 0.00% | 00.0% | Unchanged |
| CSS LLC | 830,457 | $215.9K | 0.01% | 00.0% | Unchanged |
| Meteora Capital, LLC | 860,302 | $223.7K | 0.02% | −47,742−5.3% | Reduced |
| Picton Mahoney Asset Management | 937,500 | $243.0K | 0.00% | 00.0% | Unchanged |
| Healthcare of Ontario Pension Plan Trust Fund | 937,500 | $243.8K | 0.00% | 00.0% | Unchanged |
| MMCAP International Inc. SPC | 1,037,500 | $269.8K | 0.03% | 00.0% | Unchanged |
| Polar Asset Management Partners Inc. | 1,237,500 | $321.8K | 0.01% | 00.0% | Unchanged |
| Harraden Circle Investments, LLC | 1,347,139 | $350.3K | 0.07% | 00.0% | Unchanged |
| Cantor Fitzgerald, L. P. | 2,500,000 | $650.0K | 0.01% | 00.0% | Unchanged |
| Clear Street LLC | – | – | – | – | Not filed |