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Livermore
Livermore
ZHEN

GigCapital8 Corp.

GIW
Exchange
Nasdaq
Industry
Blank Checks
SEC CIK
0002080019

No open-market purchases or sales by GigCapital8 Corp. insiders were filed in the last 90 days; 53 institutions reported holding it in 13F filings for Q2 2026, worth $241.9M in total; no superinvestor holds it.

Other share classesGIWWRGIWWU

13F holders, Q2 2026

Institutional positions in GigCapital8 Corp. as of Jun 30, 2026. 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
53
0 vs. Q1 2026
Shares held
24.0M
+334.3K (+1.4%) vs. Q1 2026
Total value
$241.9M
+$5.57M (+2.4%) vs. Q1 2026
New holders
4
8 more added
Sold out
4
10 more reduced

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting GIW 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.

Institutional holdersQ2 2026: 53 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 0 institutionsQ4 2025: 44 institutionsQ1 2026: 53 institutionsQ2 2026: 53 institutions
Value heldQ2 2026: $241.9M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $0Q4 2025: $193.0MQ1 2026: $236.4MQ2 2026: $241.9M
Institutions holding GIW and their total value by quarter
QuarterHoldersValue
Q2 202653$241.9M
Q1 202653$236.4M
Q4 202544$193.0M
Q3 20250$0
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding GigCapital8 Corp.; share changes are against Q1 2026.

Institutions holding GIW in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Morgan Stanley1$100.00%−99−99.0%Reduced
JPMorgan Chase & Co112$1.13K0.00%+112New
Citadel Advisors LLC11,442$115.1K0.00%+450+4.1%Added
Wellspring Financial Advisors, LLC15,000$151.0K0.01%00.0%Unchanged
Geode Capital Management, LLC19,549$196.7K0.00%00.0%Unchanged
Virtu Financial LLC23,971$241.0K0.01%−12,823−34.9%Reduced
Dakota Wealth Management27,700$278.9K0.01%00.0%Unchanged
Abc Arbitrage SA35,000$352.4K0.04%−5,000−12.5%Reduced
Lineage Point Capital LP35,000$352.4K0.07%00.0%Unchanged
Stoic Point Capital Management LLC39,583$398.6K0.33%00.0%Unchanged
Susquehanna International Group, LLP57,901$582.5K0.00%+12,920+28.7%Added
Limestone Investment Advisors LP101,000$1.02M0.51%+101,000New
Highbridge Capital Management LLC111,872$1.13M0.04%+111,872New
Meteora Capital, LLC116,598$1.17M0.10%−132,346−53.2%Reduced
Kepos Capital LP130,600$1.31M1.79%00.0%Unchanged
Centiva Capital, LP131,462$1.32M0.04%−44,200−25.2%Reduced
Heights Capital Management, Inc141,583$1.42M0.33%00.0%Unchanged
Parallax Volatility Advisers, L.P.157,515$1.58M0.06%−204,297−56.5%Reduced
Gabelli Funds LLC210,300$2.12M0.01%−45,000−17.6%Reduced
Schonfeld Strategic Advisors LLC213,340$2.15M0.01%+20,137+10.4%Added
Linden Advisors LP250,000$2.52M0.01%00.0%Unchanged
BlueCrest Capital Management Ltd250,000$2.52M0.11%00.0%Unchanged
SkyView Investment Advisors, LLC250,000$2.52M1.97%+250,000New
Crossingbridge Advisors, LLC250,000$2.52M0.44%00.0%Unchanged
Toronto Dominion Bank260,444$2.62M0.00%+41,085+18.7%Added
Clear Street Group Inc.266,574$2.68M0.01%+118,771+80.4%Added
Verition Fund Management LLC287,500$2.89M0.02%+200,000+228.6%Added
Gabelli & Co Investment Advisers, Inc.299,871$3.02M0.44%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys300,000$3.02M0.01%00.0%Unchanged
Periscope Capital Inc.375,000$3.78M0.60%00.0%Unchanged
Wolverine Asset Management LLC379,097$3.82M0.05%−6,546−1.7%Reduced
Two Sigma Investments, LP398,750$4.01M0.00%00.0%Unchanged
Mint Tower Capital Management B.V.400,000$4.03M0.48%00.0%Unchanged
Sona Asset Management (US) LLC416,416$4.19M0.16%00.0%Unchanged
Picton Mahoney Asset Management425,000$4.28M0.04%00.0%Unchanged
BNP Paribas Arbitrage, SA483,231$4.87M0.00%00.0%Unchanged
Mercuria Capital Strategies, LLC500,000$5.03M3.09%00.0%Unchanged
Rivernorth Capital Management, LLC599,124$6.07M0.29%−388−0.1%Reduced
Radcliffe Capital Management, L.P.650,000$6.54M0.50%00.0%Unchanged
Magnetar Financial LLC695,261$6.99M0.06%00.0%Unchanged
D. E. Shaw & Co., Inc.759,000$7.64M0.00%00.0%Unchanged
Millennium Management LLC768,970$7.74M0.01%00.0%Unchanged
Mizuho Securities USA LLC789,680$7.86M0.13%+774,047+4,951.4%Added
Whitebox Advisors LLC800,000$8.06M0.13%00.0%Unchanged
Aristeia Capital LLC850,000$8.56M0.13%00.0%Unchanged
Polar Asset Management Partners Inc.850,000$8.56M0.16%00.0%Unchanged
Yakira Capital Management, Inc.938,377$9.45M2.78%00.0%Unchanged
Karpus Management, Inc.945,625$9.52M0.27%−18,025−1.9%Reduced
Berkley W R Corp1,289,470$13.0M0.64%00.0%Unchanged
Westchester Capital Management, LLC1,330,000$13.4M0.67%00.0%Unchanged
Tenor Capital Management Co., L.P.1,500,000$15.1M0.21%00.0%Unchanged
CNH Partners LLC1,741,396$17.5M0.25%+48,427+2.9%Added
Glazer Capital, LLC2,162,974$21.8M0.54%00.0%Unchanged
Logan Stone Capital, LLC0$00.00%−512,612−100.0%Sold out
Bulldog Investors, LLP0$00.00%−154,893−100.0%Sold out
DLD Asset Management, LP0$00.00%−133,333−100.0%Sold out
Boothbay Fund Management, LLC0$00.00%−75,000−100.0%Sold out