GP-Act III Acquisition Corp. - Common (GPAT)

Historical Holders from Q3 2024 to Q3 2025

Type / Class
Equity / Common
Symbol
GPAT on Nasdaq
Shares outstanding
28,772,451
Price per share
$10.60
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
28,114,967
Total reported value
$297,999,090
% of total 13F portfolios
0%
Share change
-237,957
Value change
-$2,495,756
Number of holders
52
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of GP-Act III Acquisition Corp. - Common (GPAT) based on Schedule 13D/G filings

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
Karpus Management, Inc. 6.5% -36% $24,676,619 -$13,740,826 2,339,016 -36% KARPUS MANAGEMENT, INC. 30 Jun 2025
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
BARCLAYS PLC 5.2% 0% $15,365,126 1,485,989 0% Barclays PLC 30 Sep 2024
BANK OF MONTREAL /CAN/ 5.1% $15,676,382 1,478,904 Bank of Montreal 30 Sep 2025
MMCAP International Inc. SPC 4.4% -40% $13,451,250 -$8,440,000 1,275,000 -39% MMCAP International Inc. SPC 30 Jun 2025
Polar Asset Management Partners Inc. 4.1% $12,396,208 1,174,996 Polar Asset Management Partners Inc. 30 Jun 2025
As of 30 Sep 2025, GP-Act III Acquisition Corp. - Common (GPAT) has 52 institutional shareholders filing 13F forms. They hold 28,114,967 shares. of 28,772,451 outstanding shares (98%) .

Top 25 institutional shareholders own 88% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
Karpus Management, Inc. 8% 2,306,816 -1.4% 0.77% $24,452,250
First Trust Capital Management L.P. 7.3% 2,091,077 0% 1.4% $22,165,416
PICTON MAHONEY ASSET MANAGEMENT 6.5% 1,875,000 0% 0.25% $19,875,000
Alberta Investment Management Corp 5.6% 1,625,000 0% 0.17% $17,225,000
AQR Arbitrage LLC 5.5% 1,576,119 -0.57% 0.42% $16,706,861
D. E. Shaw & Co., Inc. 4.9% 1,423,125 0% 0.01% $15,085,125
HGC Investment Management Inc. 4.8% 1,375,000 0% 3.6% $14,575,000
MMCAP International Inc. SPC 4.4% 1,275,000 0% 1.6% $13,515,000
LMR Partners LLP 4.3% 1,225,000 0% 0.17% $12,985,000
Polar Asset Management Partners Inc. 4.1% 1,174,996 0% 0.25% $12,454,958
Westchester Capital Management, LLC 3.9% 1,110,852 -4.3% 0.61% $11,775,032
Wealthspring Capital LLC 3.6% 1,031,863 -2.6% 2.6% $10,937,748
WOLVERINE ASSET MANAGEMENT LLC 3.3% 954,866 +91% 0.15% $10,121,579
TORONTO DOMINION BANK 3% 861,649 +102% 0.02% $9,133,479
Linden Advisors LP 2.8% 797,584 0.06% $8,454,390
TENOR CAPITAL MANAGEMENT Co., L.P. 2.6% 750,000 0% 0.1% $7,950,000
TWO SIGMA INVESTMENTS, LP 2.2% 625,000 0% 0.01% $6,625,000
Radcliffe Capital Management, L.P. 2% 572,895 +288% 0.38% $6,072,687
ARISTEIA CAPITAL, L.L.C. 1.7% 490,750 0% 0.16% $5,201,950
HEIGHTS CAPITAL MANAGEMENT, INC 1.5% 421,175 -8.3% 1.4% $4,464,455
HEIGHTS CAPITAL MANAGEMENT, INC 1.5% 421,175 -8.3% 1.4% $4,464,455
RIVERNORTH CAPITAL MANAGEMENT, LLC 1.5% 420,932 -0.22% 0.25% $4,461,879
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 1.4% 412,264 0% 0.02% $4,369,998
Periscope Capital Inc. 1.2% 344,000 +46% 0.89% $3,646,400
BERKLEY W R CORP 1% 297,992 0% 0.2% $3,158,715

Institutional Holders of GP-Act III Acquisition Corp. - Common (GPAT) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q3 28,114,967 $297,999,090 -$2,495,756 $10.60 52
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