# GP-ACT III ACQUISITION CORP (GPATW)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/GPATW/

- Reporting holders: 32
- Reported value: $2.6M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Harraden Circle Investments, LLC](https://holderbook.com/funds/1910592-harraden-circle-investments-llc/) | $288.9K | 1,520,737 | 0.0% | 7 |
| [Polar Asset Management Partners Inc.](https://holderbook.com/funds/1326389-polar-asset-management-partners-inc/) | $235.1K | 1,237,500 | 0.0% | 8 |
| [HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND](https://holderbook.com/funds/1535845-healthcare-of-ontario-pension-plan-trust-fund/) | $207.2K | 937,500 | 0.0% | 8 |
| [PICTON MAHONEY ASSET MANAGEMENT](https://holderbook.com/funds/1539041-picton-mahoney-asset-management/) | $207.2K | 937,500 | 0.0% | 8 |
| [MMCAP International Inc. SPC](https://holderbook.com/funds/1304857-mmcap-international-inc-spc/) | $197.1K | 1,037,500 | 0.0% | 8 |
| [Alberta Investment Management Corp](https://holderbook.com/funds/1463559-alberta-investment-management-corp/) | $154.4K | 812,500 | 0.0% | 5 |
| [Wealthspring Capital LLC](https://holderbook.com/funds/1844495-wealthspring-capital-llc/) | $144.3K | 759,264 | 0.0% | 8 |
| [LMR Partners LLP](https://holderbook.com/funds/1578621-lmr-partners-llp/) | $116.4K | 612,500 | 0.0% | 7 |
| [Lineage Point Capital LP](https://holderbook.com/funds/2093311-lineage-point-capital-lp/) | $109.3K | 575,477 | 0.0% | 3 |
| [TORONTO DOMINION BANK](https://holderbook.com/funds/947263-toronto-dominion-bank/) | $91.5K | 481,824 | 0.0% | 5 |
| [AQR Arbitrage LLC](https://holderbook.com/funds/1167456-aqr-arbitrage-llc/) | $87.2K | 458,963 | 0.0% | 8 |
| [Linden Advisors LP](https://holderbook.com/funds/1279396-linden-advisors-lp/) | $86.5K | 360,400 | 0.0% | 7 |
| [Verition Fund Management LLC](https://holderbook.com/funds/1454027-verition-fund-management-llc/) | $85.7K | 450,800 | 0.0% | 8 |
| [CSS LLC/IL](https://holderbook.com/funds/1103646-css-llc-il/) | $83.9K | 441,672 | 0.0% | 7 |
| [ARISTEIA CAPITAL, L.L.C.](https://holderbook.com/funds/1080171-aristeia-capital-l-l-c/) | $58.9K | 245,375 | 0.0% | 8 |
| [Shaolin Capital Management LLC](https://holderbook.com/funds/1766806-shaolin-capital-management-llc/) | $56.0K | 294,650 | 0.0% | 8 |
| [Lepercq De Neuflize Asset Management LLC](https://holderbook.com/funds/1854423-lepercq-de-neuflize-asset-management-llc/) | $47.5K | 250,000 | 0.0% | 2 |
| [Saba Capital Management, L.P.](https://holderbook.com/funds/1510281-saba-capital-management-l-p/) | $46.4K | 193,229 | 0.0% | 8 |
| [RIVERNORTH CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1447578-rivernorth-capital-management-llc/) | $43.9K | 225,599 | 0.0% | 8 |
| [Periscope Capital Inc.](https://holderbook.com/funds/1695320-periscope-capital-inc/) | $42.1K | 210,700 | 0.0% | 8 |
| [GRITSTONE ASSET MANAGEMENT LLC](https://holderbook.com/funds/1964236-gritstone-asset-management-llc/) | $41.3K | 217,248 | 0.0% | 7 |
| [Meteora Capital, LLC](https://holderbook.com/funds/1905106-meteora-capital-llc/) | $38.0K | 200,000 | 0.0% | 8 |
| [Clear Street Group Inc.](https://holderbook.com/funds/1881567-clear-street-group-inc/) | $37.8K | 198,794 | 0.0% | 4 |
| [L1 Global Manager Pty Ltd](https://holderbook.com/funds/1878742-l1-global-manager-pty-ltd/) | $21.0K | 110,325 | 0.0% | 1 |
| [MOORE CAPITAL MANAGEMENT, LP](https://holderbook.com/funds/1448574-moore-capital-management-lp/) | $19.0K | 100,000 | 0.0% | 8 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 32 | $2.6M |
| Q1 2026 | 31 | $1.8M |
| Q4 2025 | 31 | $3.5M |
| Q3 2025 | 31 | $4.1M |
| Q2 2025 | 28 | $4.9M |
| Q1 2025 | 29 | $3.1M |
| Q4 2024 | 29 | $2.3M |
| Q3 2024 | 29 | $1.6M |