Comparable stake leader
GLAZER CAPITAL, LLC
SEC ownership of GigCapital8 Corp.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002080019.
Disclosed value leader
GLAZER CAPITAL, LLC
Comparable rows
29/50
Latest evidence
31 Mar 2026
- Public ticker
- GIW, GIWWR, GIWWU on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
GLAZER CAPITAL, LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
29 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
GLAZER CAPITAL, LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002080019
- Issuer location
- Palo Alto, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of GigCapital8 Corp. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
GLAZER CAPITAL, LLC
Disclosed value leader
GLAZER CAPITAL, LLC
Comparable rows
29/50
Latest evidence
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 8.5%
21 rows are not safely comparable across share classes.
13D/G row: GLAZER CAPITAL, LLC
Showing 1-8 of 50 holder rows.
Quick read
GLAZER CAPITAL, LLC leads the comparable SEC ownership view at 8.5%.
29 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens GLAZER CAPITAL, LLC's linked filing trail.
Comparable ownership
Top 5
GLAZER CAPITAL, LLC
8.5%
TENOR CAPITAL MANAGEMENT Co., L.P.
6.7%
AQR CAPITAL MANAGEMENT LLC
6.6%
Lynrock Lake LP
5.4%
Westchester Capital Management, LLC
5.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| GLAZER CAPITAL, LLC |
13F
13D/G
Company
|
8.5%
from 13D/G
|
$21,939,000
3,659,720 shares
mixed-class rows
|
— | 31 Mar 2026 |
| TENOR CAPITAL MANAGEMENT Co., L.P. |
13F
13D/G
Company · Tenor Capital Management Company, L.P.
|
6.7%
from 13D/G
|
$15,405,000
3,000,000 shares
mixed-class rows
|
— | 31 Mar 2026 |
| AQR CAPITAL MANAGEMENT LLC |
13D/G
|
6.6%
|
$16,829,056
1,694,769 shares
|
$0 | 31 Dec 2025 |
| Lynrock Lake LP |
13D/G
13F
Company
|
5.4%
|
$14,563,983
1,466,665 shares
|
$0 | 31 Dec 2025 |
| Westchester Capital Management, LLC |
13D/G
13F
Company
|
5.1%
|
$13,445,966
1,318,232 shares
|
$0 | 31 Mar 2026 |
| BERKLEY W R CORP |
13F
13D/G
Company · W. R. Berkley Corporation
|
5%
from 13D/G
|
$12,949,113
1,627,881 shares
mixed-class rows
|
— | 31 Mar 2026 |
| Bryan Timm |
3/4/5
Director
|
0.04%
|
$101,000
10,000 shares
|
— | 07 Oct 2025 |
| Karpus Management, Inc. |
13F
Company
|
3.5%
|
$9,607,591
963,650 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 19 Jul 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-9 of 9 reporting-owner rows connected to GigCapital8 Corp.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
9
Largest Forms 3/4/5 holder
Bryan Timm
Net 12M change
$0
Latest report
07 Oct 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Bryan Timm | Director | $101,000 | Mixed | 07 Oct 2025 | ||
| Dr. Avi S. Katz | Chief Executive Officer, Director, 10%+ Owner | Mixed | 03 Oct 2025 | |||
| Christine M. Marshall | Chief Financial Officer | Mixed | 03 Oct 2025 | |||
| Adrian Zuckerman | Director | Mixed | 07 Oct 2025 | |||
| Rear Admiral Omri Dagul | Director | Mixed | 07 Oct 2025 | |||
| James S. Greene | Director | Mixed | 07 Oct 2025 | |||
| Raanan I. Horowitz | Director | Mixed | 07 Oct 2025 | |||
| Luis Machuca | Director | Mixed | 07 Oct 2025 | |||
| David Ben-Bashat | Director | Mixed | 07 Oct 2025 |
Recent insider transactions for GigCapital8 Corp.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Bryan Timm | GIW | Class A ordinary shares | 0 | 10,000 | 07 Oct 2025 | Direct | ||||
| Luis Machuca | GIW | Class A ordinary shares | 0 | 10,000 | 07 Oct 2025 | Direct | ||||
| Raanan I. Horowitz | GIW | Class A ordinary shares | 0 | 5,200 | 07 Oct 2025 | Direct | ||||
| James S. Greene | GIW | Class A ordinary shares | 0 | 10,000 | 07 Oct 2025 | Direct | ||||
| Avi S. Katz | GIW | Class A ordinary shares | 0 | 10,000 | 03 Oct 2025 | By GigAcquisitions8 Corp. |
* marks a reported price that did not pass the local price check.