GIGCAPITAL8 Corp.-RTSGIWWR Preferred / convertible 13F holders, Q1 2026 (March 31) 38 holders +3
8 new positions
5 sold out
1 famous investor
$0.29 avg. 13F price*
At the end of Q1 2026 , 38 institutions reported holding GIGCAPITAL8 Corp.-RTS (GIWWR) in their 13F filings, up 3 from Q4 2025. 8 opened new positions and 5 sold out. The largest holders were Harraden Circle Investments, LLC ($1.5M), AQR Arbitrage LLC ($508K) and TENOR CAPITAL MANAGEMENT Co., L.P. ($450K). One famous investor held it Israel Englander ( of Millennium Management's portfolio).
Company GIGCAPITAL8 Corp.-RTS
CUSIP G3864J118
Latest filing quarter Q2 2026 History Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026 Institutions Total Value New Positions 8 $702K Exits 5 $216K
All 13F filers, Q4 2025 → Q1 2026: 4,549,781 shares bought and 1,028,417 shares sold, net +3,521,364 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 38 holders Portfolio Manager % of Holder's Portfolio Change vs Q4 2025 Shares Value ▼ Harraden Circle Investments, LLC — Add +15.3% 4,862,751 $1.5M AQR Arbitrage LLC — Reduce -0.1% 1,692,969 $508K TENOR CAPITAL MANAGEMENT Co., L.P. — No change 1,500,000 $450K Glazer Capital, LLC — No change 1,496,746 $374K Toronto Dominion Bank — Add +205.0% 1,052,097 $316K Yakira Capital Management, Inc. — Reduce -1.0% 938,377 $282K Aristeia Capital, L.L.C. — No change 850,000 $255K Polar Asset Management Partners Inc. — No change 850,000 $255K Whitebox Advisors LLC — No change 800,000 $240K Millennium Management — Add +247.4% 764,370 $229K Highbridge Capital Management LLC — Add +19.7% 747,951 $209K Magnetar Financial LLC — New 695,261 $201K Rivernorth Capital Management, LLC — New 599,512 $180K Radcliffe Capital Management, L.P. — No change 550,000 $151K BNP Paribas Financial Markets — No change 483,231 $133K Picton Mahoney Asset Management — No change 425,000 $128K Mint Tower Capital Management B.V. — No change 400,000 $120K Wolverine Asset Management LLC — Reduce -0.5% 384,585 $115K Linden Advisors LP — No change 375,000 $109K Meteora Capital, LLC — Add +2.5% 402,499 $101K Alpine Global Management, LLC — No change 400,000 $100K Berkley W R Corp. — Reduce -43.1% 338,411 $93K GABELLI & Co INVESTMENT ADVISERS, INC. — New 299,871 $90K Periscope Capital Inc. — Add +0.2% 300,600 $83K Commonwealth of Pennsylvania Public School Empls Retrmt SYS — No change 299,252 $82K Gabelli Funds LLC — New 255,300 $77K Clear Street Group Inc. — Reduce -22.4% 194,386 $58K Boothbay Fund Management, LLC — Add +3.5% 206,902 $57K Mercuria Capital Strategies, LLC — Add +200.0% 187,500 $56K Schonfeld Strategic Advisors LLC — New 167,166 $46K Heights Capital Management, Inc. — New 140,140 $42K Shaolin Capital Management LLC — New 133,970 $40K Bulldog Investors, LLP — Reduce -1.2% 157,316 $39K DLD Asset Management, LP — No change 100,000 $26K Kepos Capital LP — New 95,600 $26K Verition Fund Management LLC — No change 87,500 $23K Stoic Point Capital Management LLC — No change 39,583 $10K Abc Arbitrage SA — No change 20,000 $6K
"% of holder's portfolio" is GIWWR's weight in each manager's 13F, not the share of GIGCAPITAL8 Corp.-RTS the manager owns.