HCM IV Acquisition Corp.

HACQ

Exchange: Nasdaq
Industry: Blank Checks
SEC CIK: 0002089982

SEC filings (opens in a new tab)

No open-market purchases or sales by HCM IV Acquisition Corp. insiders were filed in the last 90 days; 52 institutions reported holding it in 13F filings for Q2 2026, worth $228.1M in total; no superinvestor holds it.

Other share classesHACQU HACQW

Q2 2026 vs. Q1 2026

How the institutions holding HCM IV Acquisition Corp. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of HACQ: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Q2 2026	Change
Holders	0	52	+52
Shares	0	22.7M	+22.7M
Value	$0	$228.1M	+$228.1M

New holders (52)

Institutions that held HCM IV Acquisition Corp. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to HACQ in Q2 2026
Institution	Shares	Value	% of portfolio
MMCAP International Inc. SPC	1,400,000	$14.0M	1.19%
Polar Asset Management Partners Inc.	1,400,000	$14.0M	0.26%
CNH Partners LLC	1,288,632	$13.0M	0.18%
Linden Advisors LP	1,250,000	$12.6M	0.07%
Magnetar Financial LLC	1,000,000	$10.1M	0.09%
Alberta Investment Management Corp	1,000,000	$10.1M	0.06%
Healthcare of Ontario Pension Plan Trust Fund	1,000,000	$10.1M	0.01%
Highbridge Capital Management LLC	1,000,000	$10.0M	0.34%
Millennium Management LLC	978,000	$9.81M	0.01%
Glazer Capital, LLC	884,839	$8.88M	0.22%
Hudson Bay Capital Management LP	816,000	$8.20M	0.04%
Saba Capital Management, L.P.	640,000	$6.42M	0.20%
BNP Paribas Arbitrage, SA	619,056	$6.22M	0.00%
Governors Lane LP	616,587	$6.18M	0.62%
Tenor Capital Management Co., L.P.	600,000	$6.02M	0.08%
Kryger Capital LLC	591,449	$5.93M	0.34%
Vivaldi Asset Management, LLC	500,000	$5.01M	0.29%
Mint Tower Capital Management B.V.	500,000	$5.01M	0.59%
Picton Mahoney Asset Management	499,996	$5.01M	0.05%
Two Sigma Investments, LP	453,124	$4.54M	0.00%
Radcliffe Capital Management, L.P.	452,832	$4.54M	0.35%
Whitebox Advisors LLC	450,000	$4.51M	0.07%
Verition Fund Management LLC	447,114	$4.49M	0.03%
Wolverine Asset Management LLC	377,999	$3.79M	0.05%
Periscope Capital Inc.	305,686	$3.07M	0.49%
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	300,000	$3.01M	0.01%
Sona Asset Management (US) LLC	300,000	$3.01M	0.11%
TIG Advisors, LLC	250,100	$2.51M	0.12%
HBK Investments L P	250,004	$2.51M	0.03%
Schonfeld Strategic Advisors LLC	208,200	$2.09M	0.01%
Rivernorth Capital Management, LLC	200,000	$2.01M	0.10%
Ghisallo Capital Management LLC	200,000	$2.01M	0.04%
Moore Capital Management, LP	200,000	$2.01M	0.05%
DLD Asset Management, LP	200,000	$2.01M	0.16%
Clear Street Group Inc.	198,713	$1.99M	0.01%
Shaolin Capital Management LLC	193,483	$1.94M	0.11%
Adage Capital Partners GP, L.L.C.	150,000	$1.50M	0.00%
K2 Principal Fund, L.P.	150,000	$1.50M	0.14%
Bulldog Investors, LLP	150,000	$1.50M	0.33%
Galaxy Digital Inc.	100,000	$1.00M	0.16%
Berkley W R Corp	99,432	$999.3K	0.05%
Mizuho Securities USA LLC	100,000	$990.0K	0.02%
JPMorgan Chase & Co	87,664	$880.1K	0.00%
Toronto Dominion Bank	57,331	$575.0K	0.00%
Heights Capital Management, Inc	50,000	$502.5K	0.12%
Deltec Asset Management LLC	50,000	$501.5K	0.07%
Gritstone Asset Management LLC	40,000	$401.2K	0.39%
Abc Arbitrage SA	40,000	$401.2K	0.04%
Kepos Capital LP	25,000	$251.0K	0.34%
State of Wisconsin Investment Board	25,000	$250.8K	0.00%
Crossingbridge Advisors, LLC	25,000	$250.8K	0.04%
Morgan Stanley	26	$261	0.00%

Sold out (0)

Institutions that held HCM IV Acquisition Corp. at the end of Q1 2026 and filed for Q2 2026 without it.

None.