13-F holdings, Q2 2026
Brightline Capital Management, LLC
A 13-F is the report large US investment managers file with the SEC each quarter, listing the stocks they held at quarter end.
- Reported value
- $461.5M
- Positions
- 11
- Filed
- Data as of
These holdings are as of , 133 days ago.
13-Fs for Q3 2026 are due by .
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Top holdings
- VSAT$189.7M2,112,000 shares41.1% of the book
- CSTM$61.3M1,923,000 shares13.3% of the book
- RRX$38.8M163,000 shares8.4% of the book
- FLR$37.9M723,000 shares8.2% of the book
- ECVT$37.5M3,012,000 shares8.1% of the book
- DAN$31.6M1,160,000 shares6.8% of the book
- HRI$20.4M142,000 shares4.4% of the book
- OC$12.7M80,000 shares2.8% of the book
- WSC$9.9M342,000 shares2.1% of the book
- ASTL$6.7M1,660,000 shares1.5% of the book
What changed this quarter
4 new positions and 3 sold out, against Q1 2026. Added and trimmed positions use the change in split-adjusted shares at the Q2 2026 implied price; full exits use their Q1 2026 reported value, not sale proceeds.
Largest buys
- HRI
HERC HLDGS INC
+$20.4M
New
Your stake and evidence for HRI
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
A position newly appears in the Q2 2026 book.
Displayed change: +$20.4M. The current book reports 142,000 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 20354280 USD. Current reported shares: 142000. Prior shares on current basis: not recorded.
- OC
OWENS CORNING NEW
+$12.7M
New
Your stake and evidence for OC
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
A position newly appears in the Q2 2026 book.
Displayed change: +$12.7M. The current book reports 80,000 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 12716800 USD. Current reported shares: 80000. Prior shares on current basis: not recorded.
- WSC
WILLSCOT HLDGS CORP
+$9.9M
New
Your stake and evidence for WSC
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
A position newly appears in the Q2 2026 book.
Displayed change: +$9.9M. The current book reports 342,000 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 9870120 USD. Current reported shares: 342000. Prior shares on current basis: not recorded.
- RRX
REGAL REXNORD CORPORATION
+$9.1M
+30.4% shares
Your stake and evidence for RRX
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares increased between Q1 2026 and Q2 2026.
Displayed change: +$9.1M. The current book reports 163,000 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
163,000 current shares − 125,000 prior shares on the same basis = +38,000 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 9051220 USD. Current reported shares: 163000. Prior shares on current basis: 125000.
- ASTL
ALGOMA STL GROUP INC
+$6.7M
New
Your stake and evidence for ASTL
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
A position newly appears in the Q2 2026 book.
Displayed change: +$6.7M. The current book reports 1,660,000 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 6723000 USD. Current reported shares: 1660000. Prior shares on current basis: not recorded.
Largest sells
- AMTM
AMENTUM HOLDINGS INC
−$36.4M
Sold out, was 10.8% of the book
Your stake and evidence for AMTM
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
The position reported in Q1 2026 is absent from the comparable Q2 2026 book.
Displayed change: −$36.4M. This was 10.8% of the prior book.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -36408000 USD. Current reported shares: not recorded. Prior shares on current basis: 1396000.
- KALU
KAISER ALUMINUM CORP
−$21.1M
Sold out, was 6.2% of the book
Your stake and evidence for KALU
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
The position reported in Q1 2026 is absent from the comparable Q2 2026 book.
Displayed change: −$21.1M. This was 6.2% of the prior book.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -21089000 USD. Current reported shares: not recorded. Prior shares on current basis: 175000.
- TGB
TASEKO MINES LTD
−$12.9M
Sold out, was 3.8% of the book
Your stake and evidence for TGB
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
The position reported in Q1 2026 is absent from the comparable Q2 2026 book.
Displayed change: −$12.9M. This was 3.8% of the prior book.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A full exit is shown as the negative of its prior reported value, not sale proceeds or a value at today's price.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -12913000 USD. Current reported shares: not recorded. Prior shares on current basis: 2002000.
What was sold out, by size
- 3 real positions, 0.25% of the book or more
Not counted as trades: TREKOR METALS LTD (newly listed or spun off).
All of this comes from the filer's public SEC filings. A 13-F shows long positions in US-listed securities at quarter end and can leave out short positions, cash and non-US holdings, so it is not the whole portfolio. This is filing data, not investment advice.