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$ASTL
$4.80 -$0.06 (1.23%) Close

Ownership

13F as of Q2 2026 · 104.9M shares outstanding

Who owns ASTL?

By type of holder
Institutions 68.6% Everyone else 31.4%

No insider has reported a holding in the last two years, so insiders are counted in "Everyone else".

Concentration Top 10 holders own 49.2%
Maple Rock Capital Partners Inc. 16.1% · MMCAP International Inc. SPC 10.4%
Institutional ownership
68.6%
0.0 pts vs last qtr
Institutional holders
94
-4 vs last qtr
Net shares bought
+52.2K
by institutions in Q2 2026
New / sold out
12 / 16
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • Brightline Capital Management, LLC NEW +1.7M
  • Morgan Stanley +1.5M

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Biggest sellers in Q2 2026
  • Littlejohn & Co LLC −1.9M
  • MMCAP International Inc. SPC −1.9M

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Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Algoma Steel Group Inc in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Algoma Steel Group Inc.

How patient are the owners?

Institutional shares by how long they've been held
5+ years0% 3–5 years60% 1–3 years25% Under 1 year16%
Quarterly turnover
15.5%
of institutional shares changed hands
Top 10 managers, median time held
3.5 years

Super Investors

Investment managers reporting ASTL on Form 13F
MR
Maple Rock Capital Partners Inc.
Shares
16.9M
% of company
16.07%
Change vs last qtr
+931.0K (+5.8%)
Held since
2021
MI
MMCAP International Inc. SPC
Shares
11.0M
% of company
10.44%
Change vs last qtr
−1.9M (−14.7%)
Held since
2023

28 more super investors behind a free account

See every manager holding Algoma Steel Group Inc, how their position has changed, and how long they've held it.

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Institutional Funds

Mutual funds and ETFs reporting ASTL on Form N-PORT; together they hold 5.8% of the company
AV
Aegis Funds
Position value
$7.04M
% of company
1.65%
% of the fund
0.62%
As of
June 30, 2026
Position value
$5.07M
% of company
1.19%
% of the fund
0.01%
As of
June 30, 2026

23 more funds behind a free account

See every fund holding Algoma Steel Group Inc and how much of the fund the position is.

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Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G
ZI
Zekelman Industries, Inc.
5%+ holder13D · 3.1%
Shares
3.2M
% of company
3.08%
Change vs last qtr
—
Held since
—

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