GigCapital8 Corp. - Class A Common Stock (GIWWU) Institutional Ownership

13F Institutional Holders and Ownership History for Q4 2025

Type / Class
Equity / Class A Common Stock
Symbol
GIWWU on Nasdaq
Shares outstanding
22,388,060
Price per share
$10.18
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
4,407,587
Total reported value
$44,931,230
% of total 13F portfolios
0%
Share change
+4,397,170
Value change
+$44,825,185
Number of holders
18
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of GigCapital8 Corp. - Class A Common Stock (GIWWU) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
TENOR CAPITAL MANAGEMENT Co., L.P. 6.7% 1,500,000 Tenor Capital Management Company, L.P. 06 Oct 2025

As of 31 Dec 2025, 18 institutional investors reported holding 4,407,587 shares of GigCapital8 Corp. - Class A Common Stock (GIWWU). This represents 20% of the company’s total 22,388,060 outstanding shares.

Top 18 Institutional Shareholders

The largest institutional shareholders of GigCapital8 Corp. - Class A Common Stock (GIWWU) together control 20% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Magnetar Financial LLC 3.1% 695,261 0.07% $7,119,473
RIVERNORTH CAPITAL MANAGEMENT, LLC 2.7% 599,512 0.29% $6,103,032
TORONTO DOMINION BANK 2.1% 475,000 0.01% $4,835,500
MILLENNIUM MANAGEMENT LLC 2.1% 464,234 0% $4,725,902
GABELLI & Co INVESTMENT ADVISERS, INC. 1.3% 299,871 0.46% $3,052,687
Crossingbridge Advisors, LLC 1.2% 274,996 0.83% $2,800,959
GABELLI FUNDS LLC 1.1% 255,300 0.02% $2,598,954
HGC Investment Management Inc. 1.1% 250,000 0.54% $2,545,000
Schonfeld Strategic Advisors LLC 1.1% 244,559 0.01% $2,504,284
Verition Fund Management LLC 0.89% 200,000 0.01% $2,036,000
HEIGHTS CAPITAL MANAGEMENT, INC 0.63% 141,683 0.55% $1,442,333
Mercuria Capital Strategies, LLC 0.56% 125,000 0.72% $1,272,500
Wealthspring Capital LLC 0.45% 100,000 0.24% $1,018,000
Clear Street Group Inc. 0.42% 93,670 0% $953,561
Quarry LP 0.33% 75,000 0.19% $768,000
HRT FINANCIAL LP 0.24% 53,084 0% $540,000
Lynrock Lake LP 0.22% 50,000 0.03% $509,000
Stoic Point Capital Management LLC 0.05% 10,417 0% 0.09% $106,045

Institutional Holders of GigCapital8 Corp. - Class A Common Stock (GIWWU) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 4,407,587 $44,931,230 +$44,825,185 $10.18 18