Vault-13

GIGCAPITAL7 CORP HDRN

ORD SHS CL A · Common Stock · CUSIP G38648104

1 institutional holders -34 vs Q1 2026
1,453,0301.5m shares reported held*
$15.4mreported value*
0 new 0 added 0 reduced 34 sold out net sold ≈ $158.0m (-14.9m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $10.63.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q3 24: 19Q4 24: 30Q1 25: 31Q2 25: 31Q3 25: 30Q4 25: 42Q1 26: 35Q2 26: 11Q3 24Q1 25Q3 25Q1 26Q2 26
Numbers
QuarterHolders
Q3 202419
Q4 202430
Q1 202531
Q2 202531
Q3 202530
Q4 202542
Q1 202635
Q2 20261

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q4 24: 19 bought or addedQ4 24: 8 cut or sold outQ4 24Q1 25: 12 bought or addedQ1 25: 9 cut or sold outQ2 25: 11 bought or addedQ2 25: 8 cut or sold outQ2 25Q3 25: 9 bought or addedQ3 25: 14 cut or sold outQ4 25: 24 bought or addedQ4 25: 24 cut or sold outQ4 25Q1 26: 11 bought or addedQ1 26: 19 cut or sold outQ2 26: 0 bought or addedQ2 26: 34 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q4 2024198
Q1 2025129
Q2 2025118
Q3 2025914
Q4 20252424
Q1 20261119
Q2 2026034

Biggest buyers

None

Biggest sellers

TENOR CAPITAL MANAGEMENT Co., L.P. Sold out -1,894,982-1.9m
BERKLEY W R CORP Sold out -1,735,682-1.7m
HIGHBRIDGE CAPITAL MANAGEMENT LLC Sold out -1,734,352-1.7m
TORONTO DOMINION BANK Sold out -1,219,887-1.2m
AQR Arbitrage LLC Sold out -1,105,491-1.1m
ARISTEIA CAPITAL, L.L.C. Sold out -1,005,240-1.0m
D. E. Shaw & Co., Inc. Sold out -990,000-990.0k
Yakira Capital Management, Inc. Sold out -637,885-637.9k
BOOTHBAY FUND MANAGEMENT, LLC Sold out -603,899-603.9k
WHITEBOX ADVISORS LLC Sold out -550,000-550.0k

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
HIGHBRIDGE CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-02-17 9.4% new 1.9m 2026-02-17
AQR CAPITAL MANAGEMENT LLC 13G · institution filed 2026-02-12 5.5% 1.1m 2026-02-12
ARISTEIA CAPITAL, L.L.C. 13G · institution filed 2026-02-17 5.0% 1.0m 2026-02-17
Westchester Capital Management, LLC 13G · institution new · filed 2025-05-14 5.0% new 999.0k 2025-05-14

Fell to 5% or below in the last year: TENOR CAPITAL MANAGEMENT Co., L.P. (0.0%, 2026-08-14), MIZUHO FINANCIAL GROUP INC (0.0%, 2026-08-13), TD SECURITIES (USA) LLC (0.0%, 2026-08-12), BERKLEY W R CORP (0.0%, 2026-08-06), Harraden Circle Investments, LLC (0.0%, 2026-05-14), GOLDMAN SACHS GROUP INC (3.2%, 2026-05-08), BARCLAYS PLC (0.0%, 2026-02-13), Yakira Capital Management, Inc. (3.2%, 2026-01-14), Kepos Capital LP (0.3%, 2025-11-13), RichRich Capital LLC (0.0%, 2025-11-13)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 MIZUHO SECURITIES USA LLC 0.15% of their portfolio NEW YORK, NY 1,453,0301.5m $15.4m $15.4m 0.15% Unchanged