Latest Period
Q2 2026
Security Snapshot
GigCapital8 Corp. - Class A ordinary shares, par value $0.0001 per share (GIW) Institutional Ownership
CUSIP: G3864J100
13F Institutional Holders and Ownership History from Q4 2025 to Q2 2026
Institutions Reporting
52
Shares (Excl. Options)
23,791,289
Price
$10.07
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- Security type / class
- Equity / Class A ordinary shares, par value $0.0001 per share
- Symbol
- GIW on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 23,791,289
- Total 13F value
- $239,430,134
- Portfolio coverage rank
- 0%
- Share change
- +84,259
- Value change
- +$842,882
- Number of holders
- 52
- Shares outstanding
- 27,160,463
- SEC-reported price per share
- $10.07
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- GIW - GigCapital8 Corp. - Class A ordinary shares, par value $0.0001 per share is tracked under CUSIP G3864J100.
- 52 institutions reported positions in Q2 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 53 to 52 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $236,380,736 to $239,430,134.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 52 institutions filings for Q2 2026.
Security key
G3864J100
Latest holder period
Q2 2026
13F holders
52
13D/G owners
4
CIK / CUSIP context first
Open Q2 2026 holders
GIW full holder history
GigCapital8 Corp. SEC filings
GigCapital8 Corp. company facts
GigCapital8 Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G3864J100:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
GIW
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| GLAZER CAPITAL, LLC | 8.5% | $21,600,560 | 2,175,283 | Glazer Capital, LLC | 31 Dec 2025 | |||
| AQR CAPITAL MANAGEMENT LLC | 6.6% | $16,829,056 | 1,694,769 | AQR Capital Management, LLC | 31 Dec 2025 | |||
| Lynrock Lake LP | 5.4% | $14,563,983 | 1,466,665 | Lynrock Lake LP | 31 Dec 2025 | |||
| BERKLEY W R CORP | 5% | $12,804,437 | 1,289,470 | W. R. Berkley Corporation | 31 Dec 2025 |
As of 30 Jun 2026, 52 institutional investors reported holding 23,791,289 shares of GigCapital8 Corp. - Class A ordinary shares, par value $0.0001 per share (GIW). This represents 88% of the company’s total 27,160,463 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
75%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| GLAZER CAPITAL, LLC | 8% | 2,162,974 | 0% | 0.54% | $21,779,000 |
| AQR Arbitrage LLC | 6.4% | 1,741,396 | +2.9% | 0.25% | $17,518,444 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 5.5% | 1,500,000 | 0% | 0.21% | $15,103,350 |
| Westchester Capital Management, LLC | 4.9% | 1,330,000 | 0% | 0.67% | $13,379,800 |
| BERKLEY W R CORP | 4.7% | 1,289,470 | 0% | 0.64% | $12,972,068 |
| Karpus Management, Inc. | 3.5% | 945,625 | -1.9% | 0.27% | $9,521,404 |
| Yakira Capital Management, Inc. | 3.5% | 938,377 | 0% | 2.8% | $9,448,424 |
| ARISTEIA CAPITAL, L.L.C. | 3.1% | 850,000 | 0% | 0.13% | $8,558,565 |
| Polar Asset Management Partners Inc. | 3.1% | 850,000 | 0% | 0.16% | $8,558,565 |
| WHITEBOX ADVISORS LLC | 2.9% | 800,000 | 0% | 0.13% | $8,055,120 |
| MIZUHO SECURITIES USA LLC | 2.9% | 789,680 | +4951% | 0.12% | $7,857,316 |
| MILLENNIUM MANAGEMENT LLC | 2.8% | 768,970 | 0% | 0.01% | $7,742,682 |
| D. E. Shaw & Co., Inc. | 2.8% | 759,000 | 0% | 0% | $7,635,540 |
| Magnetar Financial LLC | 2.6% | 695,261 | 0% | 0.06% | $6,994,326 |
| Radcliffe Capital Management, L.P. | 2.4% | 650,000 | 0% | 0.5% | $6,544,785 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 2.2% | 599,124 | -0.06% | 0.29% | $6,069,126 |
| Mercuria Capital Strategies, LLC | 1.8% | 500,000 | 0% | 3.1% | $5,034,450 |
| BNP PARIBAS FINANCIAL MARKETS | 1.8% | 483,231 | 0% | 0% | $4,865,605 |
| PICTON MAHONEY ASSET MANAGEMENT | 1.6% | 425,000 | 0% | 0.04% | $4,279,284 |
| SONA ASSET MANAGEMENT (US) LLC | 1.5% | 416,416 | 0% | 0.16% | $4,192,851 |
| Mint Tower Capital Management B.V. | 1.5% | 400,000 | 0% | 0.48% | $4,028,000 |
| TWO SIGMA INVESTMENTS, LP | 1.5% | 398,750 | 0% | 0% | $4,014,974 |
| WOLVERINE ASSET MANAGEMENT LLC | 1.4% | 379,097 | -1.7% | 0.05% | $3,817,090 |
| Periscope Capital Inc. | 1.4% | 375,000 | 0% | 0.6% | $3,775,838 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 1.1% | 300,000 | 0% | 0.01% | $3,020,700 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
3
Latest
Q2 2026
Rows shown
1-3 of 3