C3is Inc

CUSIP: Y18284300 | 3 institutional holders

Compare Detailed Historical Funds Options Short Interest 13D/13G Peers Targeting Trading Summary Profile

Beneficial Ownership — 13D / 13G

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

Holder	Shares	% of Class	Change	Event Date	vs 13F
13G/AAscent Partners Fund LLC	0	0.0%	Fell below 5%	Oct 1, 2026	No 13F filer matched
13G/A Towerview LLC	—	—	Newly reported

Institutional Holders — Q2 2026

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Towerview LLC50,000

0.1% of portfolio$83.0K

HRT Financial LP24,459

0.0% of portfolio$40

Caitong International Asset Management Co., Ltd2

0.0% of portfolio$3

				Style	Turnover	Location	Filed
Towerview LLC	50,000	$83.0K	0.1%	Yield	Very Low	New York, NY	2026-08-04
HRT Financial LP	24,459	$40	0.0%	GARP	Very High	New York, NY	2026-08-14
Caitong International Asset Management Co., Ltd	2	$3	0.0%	Growth	Very High	Hong Kong, South Korea	2026-08-05

13G/AAscent Partners Fund LLC0

0.0% of class · Oct 1, 2026Fell below 5%

No 13F filer matched

13G/A Towerview LLC—

— · Aug 19, 2026Newly reported

50,000 sh (Jun 30, 2026)

13G Jane Street Group, LLC937,330

7.2% of class · Aug 13, 2026New 5%+ stake

with Jane Street Capital, LLC, Jane Street Global Trading, LLC

Not yet in a 13F

13D/AImperial Petroleum Inc.28,846,153

68.8% of class · Jul 28, 2026+21,674,610

No 13F filer matched

13G/AAlta Partners LLC1,168,303

8.2% of class · Jul 28, 2026New 5%+ stake

No 13F filer matched

13GCVI Investments, Inc.1,221,154

9.9% of class · Jul 27, 2026New 5%+ stake

No 13F filer matched

13GLind Global Partners III LLC1,325,482

10.0% of class · Jun 28, 2026New 5%+ stake

No 13F filer matched