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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, Q1 2026

Institutional positions in GigCapital8 Corp. as of Mar 31, 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
+9 vs. Q4 2025
Shares held
23.7M
+4.19M (+21.5%) vs. Q4 2025
Total value
$236.4M
+$43.3M (+22.5%) vs. Q4 2025
New holders
15
7 more added
Sold out
6
10 more reduced

Compare with Q4 2025: 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 holdersQ1 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 heldQ1 2026: $236.4M
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, Q1 2026

Shares, value and share of portfolio for each institution holding GigCapital8 Corp.; share changes are against Q4 2025.

Institutions holding GIW in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Morgan Stanley100$9970.00%+100New
Citadel Advisors LLC10,992$109.6K0.00%+10,992New
Wellspring Financial Advisors, LLC15,000$149.6K0.01%+15,000New
Mizuho Securities USA LLC15,633$155.7K0.00%−534,367−97.2%Reduced
Geode Capital Management, LLC19,549$194.9K0.00%00.0%Unchanged
Dakota Wealth Management27,700$276.2K0.01%+27,700New
Lineage Point Capital LP35,000$348.9K0.09%00.0%Unchanged
Virtu Financial LLC36,794$367.0K0.02%−29,046−44.1%Reduced
Stoic Point Capital Management LLC39,583$394.6K0.39%00.0%Unchanged
Abc Arbitrage SA40,000$398.8K0.05%00.0%Unchanged
Susquehanna International Group, LLP44,981$448.5K0.00%00.0%Unchanged
Boothbay Fund Management, LLC75,000$747.8K0.02%−337−0.4%Reduced
Verition Fund Management LLC87,500$872.4K0.01%00.0%Unchanged
Kepos Capital LP130,600$1.30M2.12%+130,600New
DLD Asset Management, LP133,333$1.33M0.13%00.0%Unchanged
Heights Capital Management, Inc141,583$1.41M0.40%+141,583New
Clear Street Group Inc.147,803$1.47M0.01%−199,089−57.4%Reduced
Bulldog Investors, LLP154,893$1.54M0.35%−4,370−2.7%Reduced
Centiva Capital, LP175,662$1.75M0.08%+175,662New
Schonfeld Strategic Advisors LLC193,203$1.93M0.02%+153,203+383.0%Added
Toronto Dominion Bank219,359$2.19M0.00%+19,359+9.7%Added
Meteora Capital, LLC248,944$2.48M0.18%−1,056−0.4%Reduced
Linden Advisors LP250,000$2.49M0.01%00.0%Unchanged
BlueCrest Capital Management Ltd250,000$2.49M0.23%+250,000New
Crossingbridge Advisors, LLC250,000$2.49M0.45%+250,000New
Gabelli Funds LLC255,300$2.55M0.02%+255,300New
Gabelli & Co Investment Advisers, Inc.299,871$2.99M0.44%+299,871New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys300,000$2.99M0.02%00.0%Unchanged
Parallax Volatility Advisers, L.P.361,812$3.62M0.16%+361,812New
Periscope Capital Inc.375,000$3.74M0.65%+16,100+4.5%Added
Wolverine Asset Management LLC385,643$3.84M0.06%−1,000−0.3%Reduced
Two Sigma Investments, LP398,750$3.98M0.00%00.0%Unchanged
Mint Tower Capital Management B.V.400,000$3.99M0.39%00.0%Unchanged
Sona Asset Management (US) LLC416,416$4.15M0.16%+416,416New
Picton Mahoney Asset Management425,000$4.24M0.04%00.0%Unchanged
BNP Paribas Arbitrage, SA483,231$4.82M0.00%00.0%Unchanged
Mercuria Capital Strategies, LLC500,000$4.99M1.91%+125,000+33.3%Added
Logan Stone Capital, LLC512,612$5.11M1.42%00.0%Unchanged
Rivernorth Capital Management, LLC599,512$5.98M0.30%+599,512New
Radcliffe Capital Management, L.P.650,000$6.48M0.49%00.0%Unchanged
Magnetar Financial LLC695,261$6.94M0.07%+695,261New
D. E. Shaw & Co., Inc.759,000$7.57M0.01%00.0%Unchanged
Millennium Management LLC768,970$7.67M0.01%+548,970+249.5%Added
Whitebox Advisors LLC800,000$7.98M0.11%00.0%Unchanged
Aristeia Capital LLC850,000$8.47M0.19%00.0%Unchanged
Polar Asset Management Partners Inc.850,000$8.47M0.20%00.0%Unchanged
Yakira Capital Management, Inc.938,377$9.36M2.74%−9,623−1.0%Reduced
Karpus Management, Inc.963,650$9.61M0.30%+873,700+971.3%Added
Berkley W R Corp1,289,470$12.9M0.69%00.0%Unchanged
Westchester Capital Management, LLC1,330,000$13.3M0.64%+250,000+23.1%Added
Tenor Capital Management Co., L.P.1,500,000$15.0M0.23%00.0%Unchanged
CNH Partners LLC1,692,969$16.9M0.28%−1,800−0.1%Reduced
Glazer Capital, LLC2,162,974$21.6M0.46%−12,309−0.6%Reduced
Alpine Global Management, LLC0$00.00%−400,000−100.0%Sold out
StoneX Group Inc.0$00.00%−161,800−100.0%Sold out
Gritstone Asset Management LLC0$00.00%−50,000−100.0%Sold out
PharVision Advisers, LLC0$00.00%−16,607−100.0%Sold out
Quarry LP0$00.00%−4,782−100.0%Sold out
UBS Group AG0$00.00%−151−100.0%Sold out