Who owns GigCapital8 (GIW)
Which tracked institutional funds hold GIW, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GIW company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-08-14). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on GIW is one-sided between 2026-Q1 and 2026-Q2: 4 added or opened and 15 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
GIW’s largest tracked holder by dollar value, Harraden Circle Investments, LLC, sizes it at 11.4% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 11.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GIW divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 55 tracked filers holding GIW, 8 increased or opened the position and 21 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in GIW between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 1
- Limestone Investment Advisors LP$1M
Full exits 8
- Harraden Circle Investments, LLC$1.5B
- TENOR CAPITAL MANAGEMENT Co., L.P.$465M
- METEORA CAPITAL, LLC$103M
- GLAZER CAPITAL, LLC$22M
- Logan Stone Capital, LLC$5M
- Mint Tower Capital Management B.V.$4M
Largest adds
- Clear Street Group Inc.$1M
- HIGHBRIDGE CAPITAL MANAGEMENT LLC$1M
- AQR Arbitrage LLC$577K
Largest trims
- HGC Investment Management Inc.$3M
- Parallax Volatility Advisers, L.P.$2M
- Bulldog Investors, LLP$2M
- DLD Asset Management, LP$1M
- BOOTHBAY FUND MANAGEMENT, LLC$749K
- GABELLI FUNDS LLC$438K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| AQR Arbitrage LLC added | 1,741,396 | $18M | 0.8% | 2026-Q2 |
| Westchester Capital Management, LLC | 1,330,000 | $13M | 0.6% | 2026-Q2 |
| BERKLEY W R CORP | 1,289,470 | $13M | 0.6% | 2026-Q2 |
| Karpus Management, Inc. trimmed | 945,625 | $10M | 0.4% | 2026-Q2 |
| Yakira Capital Management, Inc. | 938,377 | $9M | 0.4% | 2026-Q2 |
| Polar Asset Management Partners Inc. | 850,000 | $9M | 0.4% | 2026-Q2 |
| ARISTEIA CAPITAL, L.L.C. | 850,000 | $9M | 0.4% | 2026-Q2 |
| WHITEBOX ADVISORS LLC | 800,000 | $8M | 0.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC | 768,970 | $8M | 0.3% | 2026-Q2 |
| D. E. Shaw & Co., Inc. | 759,000 | $8M | 0.3% | 2026-Q2 |
| Magnetar Financial LLC | 695,261 | $7M | 0.3% | 2026-Q2 |
| Radcliffe Capital Management, L.P. | 650,000 | $7M | 0.3% | 2026-Q2 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC trimmed | 599,124 | $6M | 0.3% | 2026-Q2 |
| Mercuria Capital Strategies, LLC | 500,000 | $5M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS | 483,231 | $5M | 0.2% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT | 425,000 | $4M | 0.2% | 2026-Q2 |
| SONA ASSET MANAGEMENT (US) LLC | 416,416 | $4M | 0.2% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP | 398,750 | $4M | 0.2% | 2026-Q2 |
| WOLVERINE ASSET MANAGEMENT LLC trimmed | 379,097 | $4M | 0.2% | 2026-Q2 |
| Periscope Capital Inc. | 375,000 | $4M | 0.2% | 2026-Q2 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 300,000 | $3M | 0.1% | 2026-Q2 |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 299,871 | $3M | 0.1% | 2026-Q2 |
| Verition Fund Management LLC added | 287,500 | $3M | 0.1% | 2026-Q2 |
| Clear Street Group Inc. added | 266,574 | $3M | 0.1% | 2026-Q2 |
| TORONTO DOMINION BANK added | 260,444 | $3M | 0.1% | 2026-Q2 |
| Crossingbridge Advisors, LLC | 250,000 | $3M | 0.1% | 2026-Q2 |
| Linden Advisors LP | 250,000 | $3M | 0.1% | 2026-Q2 |
| BlueCrest Capital Management Ltd | 250,000 | $3M | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 213,340 | $2M | 0.1% | 2026-Q2 |
| GABELLI FUNDS LLC trimmed | 210,300 | $2M | 0.1% | 2026-Q2 |
| Parallax Volatility Advisers, L.P. trimmed | 157,515 | $2M | 0.1% | 2026-Q2 |
| HEIGHTS CAPITAL MANAGEMENT, INC | 141,583 | $1M | 0.1% | 2026-Q2 |
| Centiva Capital, LP trimmed | 131,462 | $1M | 0.1% | 2026-Q2 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC trimmed | 111,872 | $1M | 0.1% | 2026-Q2 |
| Limestone Investment Advisors LP new | 101,000 | $1M | 0.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 57,901 | $582K | 0.0% | 2026-Q2 |
| Lynrock Lake LP | 50,000 | $509K | 0.0% | 2026-Q2 |
| Stoic Point Capital Management LLC | 39,583 | $399K | 0.0% | 2026-Q2 |
| Lineage Point Capital LP | 35,000 | $352K | 0.0% | 2026-Q2 |
| ABC ARBITRAGE SA trimmed | 35,000 | $352K | 0.0% | 2026-Q2 |
| Dakota Wealth Management | 27,700 | $279K | 0.0% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC | 19,549 | $197K | 0.0% | 2026-Q2 |
| MIZUHO SECURITIES USA LLC | 15,633 | $156K | 0.0% | 2026-Q2 |
| Wellspring Financial Advisors, LLC | 15,000 | $151K | 0.0% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 11,442 | $115K | 0.0% | 2026-Q2 |
| Alpine Global Management, LLC | 400,000 | $104K | 0.0% | 2026-Q2 |
| HGC Investment Management Inc. | 250,000 | $65K | 0.0% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 213,794 | $56K | 0.0% | 2026-Q2 |
| Bulldog Investors, LLP added | 154,896 | $40K | 0.0% | 2026-Q2 |
| Shaolin Capital Management LLC added | 138,148 | $36K | 0.0% | 2026-Q2 |
| DLD Asset Management, LP trimmed | 90,000 | $24K | 0.0% | 2026-Q2 |
| UBS Group AG | 250 | $3K | 0.0% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 112 | $1K | 0.0% | 2026-Q2 |
| MATHER GROUP, LLC. | 5 | $52 | 0.0% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1 | $10 | 0.0% | 2026-Q2 |
| Harraden Circle Investments, LLC added | 4,862,751 | $1.5B | 65.3% | 2026-Q1 stale (1 quarter behind) |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 1,500,000 | $450M | 20.1% | 2026-Q1 stale (1 quarter behind) |
| METEORA CAPITAL, LLC added | 402,499 | $101M | 4.5% | 2026-Q1 stale (1 quarter behind) |
| GLAZER CAPITAL, LLC trimmed | 2,162,974 | $22M | 1.0% | 2026-Q1 stale (1 quarter behind) |
| Logan Stone Capital, LLC | 512,612 | $5M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Mint Tower Capital Management B.V. | 400,000 | $4M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Kepos Capital LP new | 130,600 | $1M | 0.1% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP trimmed | 50,798 | $520K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Virtu Financial LLC trimmed | 36,794 | $367K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| StoneX Group Inc. new | 161,800 | $2M | 0.1% | 2025-Q4 stale (2 quarters behind) |
| Wealthspring Capital LLC new | 100,000 | $1M | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Quarry LP new | 75,000 | $768K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| GRITSTONE ASSET MANAGEMENT LLC new | 50,000 | $494K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| PharVision Advisers, LLC new | 16,607 | $164K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| ExodusPoint Capital Management, LP new | 500,000 | $155K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| K2 PRINCIPAL FUND, L.P. new | 100,000 | $31K | 0.0% | 2025-Q4 stale (2 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.