Algoma Steel Group Inc.

ASTL

Exchange: Nasdaq
Industry: Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
SEC CIK: 0001860805

SEC filings (opens in a new tab)

No open-market purchases or sales by Algoma Steel Group Inc. insiders were filed in the last 90 days; 95 institutions reported holding it in 13F filings for Q2 2026, worth $291.8M in total; no superinvestor holds it.

Other share classesASTLW

Q4 2023 vs. Q3 2023

How the institutions holding Algoma Steel Group Inc. changed between Q3 2023 and Q4 2023.

All holders in Q4 2023 All holders in Q3 2023

13F holders of ASTL: Q3 2023 compared with Q4 2023
Measure	Q3 2023	Of which not filed for Q4 2023	Q4 2023	Change
Holders	111	1	120	+10
Shares	68.0M	12.8K	71.4M	+3.37M (+5.0%)
Value	$463.5M	$87.0K	$716.4M	+$253.0M (+54.6%)

1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (24)

Institutions that held Algoma Steel Group Inc. at the end of Q4 2023 but not at the end of Q3 2023.

Institutions new to ASTL in Q4 2023
Institution	Shares	Value	% of portfolio
MMCAP International Inc. SPC	3,088,960	$30.4M	5.56%
Sumitomo Mitsui DS Asset Management Company, Ltd	1,940,300	$19.5M	0.25%
Arrowstreet Capital, Limited Partnership	465,792	$4.67M	0.00%
Two Sigma Investments, LP	199,080	$2.00M	0.00%
D. E. Shaw & Co., Inc.	190,928	$1.92M	0.00%
ExodusPoint Capital Management, LP	116,082	$1.16M	0.01%
Marex Group plc	89,167	$894.3K	0.04%
Nuveen Asset Management, LLC	70,378	$709.9K	0.00%
Marshall Wace, LLP	56,451	$566.2K	0.00%
American Century Companies Inc	30,943	$310.6K	0.00%
Boston Partners	27,589	$276.7K	0.00%
MQS Management LLC	23,807	$238.8K	0.13%
McAdam, LLC	16,073	$161.2K	0.01%
AYAL Capital Advisors Ltd	16,000	$160.5K	0.13%
Two Sigma Advisers, LP	14,200	$142.4K	0.00%
Victory Capital Management Inc	12,572	$126.1K	0.00%
Walleye Trading LLC	12,045	$120.8K	0.00%
Quadrature Capital Ltd	11,352	$113.9K	0.00%
National Philanthropic Trust	10,000	$100.3K	0.00%
Cubist Systematic Strategies, LLC	9,963	$99.9K	0.00%
Point72 Asset Management, L.P.	4,500	$45.1K	0.00%
CVA Family Office, LLC	2,000	$20.1K	0.00%
US Bancorp	1,147	$11.5K	0.00%
WealthCollab, LLC	595	$5.97K	0.00%

Sold out (14)

Institutions that held Algoma Steel Group Inc. at the end of Q3 2023 and filed for Q4 2023 without it.

Institutions that sold out of ASTL in Q4 2023
Institution	Shares, Q3 2023	Value, Q3 2023
Philosophy Capital Management LLC	1,333,117	$9.07M
Public Sector Pension Investment Board	210,337	$1.43M
PDT Partners, LLC	49,342	$335.5K
Mackenzie Financial Corp	44,490	$291.4K
Stifel Financial Corp	33,685	$229.1K
Balyasny Asset Management LLC	23,034	$156.6K
Diametric Capital, LP	22,907	$155.8K
PEAK6 Investments LLC	20,530	$139.6K
O'Shaughnessy Asset Management, LLC	11,056	$75.2K
Man Group plc	–	$74.8K
JustInvest LLC	10,712	$72.8K
Northwest & Ethical Investments L.P.	5,210	$35.3K
MCF Advisors LLC	314	$2.13K
Citigroup Inc	159	$1.08K

Not filed for Q4 2023 yet (1)

Institutions that held Algoma Steel Group Inc. at the end of Q3 2023 and haven't filed a 13F for Q4 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ASTL in Q3 2023 that haven't filed for Q4 2023
Institution	Shares, Q3 2023	Value, Q3 2023
SIG North Trading, ULC	12,800	$87.0K