HCM III Acquisition Corp.

HCMAU

Exchange: Nasdaq
Industry: Blank Checks
SEC CIK: 0002069856

SEC filings (opens in a new tab)

No open-market purchases or sales by HCM III Acquisition Corp. insiders were filed in the last 90 days; 11 institutions reported holding it in 13F filings for Q2 2026, worth $7.84M in total; no superinvestor holds it.

Other share classesHCMA HCMAW

Q3 2025 vs. Q2 2025

How the institutions holding HCM III Acquisition Corp. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025 All holders in Q2 2025

13F holders of HCMAU: Q2 2025 compared with Q3 2025
Measure	Q2 2025	Q3 2025	Change
Holders	0	38	+38
Shares	0	8.13M	+8.13M
Value	$0	$83.8M	+$83.8M

New holders (38)

Institutions that held HCM III Acquisition Corp. at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to HCMAU in Q3 2025
Institution	Shares	Value	% of portfolio
MMCAP International Inc. SPC	1,000,000	$10.3M	1.20%
Magnetar Financial LLC	1,000,000	$10.3M	0.06%
Healthcare of Ontario Pension Plan Trust Fund	1,000,000	$10.3M	0.02%
Mint Tower Capital Management B.V.	750,000	$7.73M	0.99%
Alberta Investment Management Corp	550,000	$5.67M	0.04%
Polar Asset Management Partners Inc.	500,000	$5.16M	0.10%
Periscope Capital Inc.	500,000	$5.16M	1.25%
Millennium Management LLC	429,000	$4.42M	0.00%
CNH Partners LLC	379,400	$3.91M	0.10%
Toronto Dominion Bank	350,000	$3.61M	0.01%
Rivernorth Capital Management, LLC	200,000	$2.06M	0.12%
Waratah Capital Advisors Ltd.	143,164	$1.48M	0.10%
BNP Paribas Arbitrage, SA	120,600	$1.24M	0.00%
Shaolin Capital Management LLC	120,417	$1.24M	0.06%
Steadfast Capital Management LP	100,000	$1.03M	0.02%
Moore Capital Management, LP	100,000	$1.03M	0.02%
HGC Investment Management Inc.	100,000	$1.03M	0.25%
Wealthspring Capital LLC	100,000	$1.03M	0.25%
Jain Global LLC	100,000	$1.03M	0.01%
Clear Street Group Inc.	60,897	$627.8K	0.00%
Driehaus Capital Management LLC	50,000	$515.5K	0.00%
Omers Administration Corp	50,000	$515.5K	0.00%
Walleye Capital LLC	50,000	$515.5K	0.00%
Sona Asset Management (US) LLC	50,000	$515.5K	0.02%
Gritstone Asset Management LLC	50,000	$515.5K	0.53%
HRT Financial LP	48,617	$501.0K	0.00%
Galaxy Group Investments LLC	44,900	$462.9K	0.05%
Heights Capital Management, Inc	36,855	$380.0K	0.12%
BCK Capital Management LP	32,459	$334.7K	0.36%
Westchester Capital Management, LLC	25,000	$257.8K	0.01%
Aristeia Capital LLC	25,000	$257.8K	0.01%
Boothbay Fund Management, LLC	25,000	$257.8K	0.01%
Atw Spac Management LLC	25,000	$257.8K	0.33%
Readystate Asset Management LP	10,000	$103.1K	0.01%
PenderFund Capital Management Ltd.	1,000	$10.3K	0.00%
FNY Investment Advisers, LLC	782	$8.00K	0.00%
UBS Group AG	364	$3.75K	0.00%
Picton Mahoney Asset Management	5	$0	0.00%

Sold out (0)

Institutions that held HCM III Acquisition Corp. at the end of Q2 2025 and filed for Q3 2025 without it.

None.