13F Portfolios

Bornite Capital Management LP 13F: Portfolio & Holdings

In its most recent SEC Form 13F-HR filing (as of Q1 2026), Bornite Capital Management LP (SEC CIK 0001800641) reported 17 positions with a combined market value of $0.6 billion. The New York-based hedge fund has Basic Materials as its largest sector at 28.4% of exposure.

Its largest holdings are Taiwan Semic-Adr (TSM) at 11.7%, Talen Energy CORP (TLN) at 11.2%, and Steel Dynamics INC (STLD) at 10.6%.

The largest new position was Steel Dynamics INC (STLD) at 10.6% of the portfolio. See the fund’s full Q1 2026 buys, sells, and portfolio changes →

Based on published SEC 13F filings, Bornite Capital Management's closest peer funds by portfolio overlap are Peconic Partners LLC (75.0%), Newlands Management Operations LLC (36.3%), and KEYWISE CAPITAL MANAGEMENT (HK) Ltd (36.0%).

13F AUM
$0.6B
Equity Positions
17
Top-10 Concentration
84.0%
Largest Sector · 28.4%
Basic Materials
Longest-Held Position · 16 qtrs
AMZN
Median Holding Period
2 Qtrs

What are Bornite Capital Management’s largest 13F holdings as of Q1 2026?

Largest 13F positions disclosed by Bornite Capital Management, ranked by portfolio weight. Full multi-quarter history and the broader institutional holder base for each ticker linked per row.

Top 10 disclosed equity positions for Bornite Capital Management in Q1 2026 — ranked by portfolio weight; share count and market value sourced from SEC Form 13F-HR filings.
# Issuer Ticker Sector Weight Position Value Detail
1 TAIWAN SEMIC-ADR TSM Technology 11.7% $69.8M Position History All Holders
2 TALEN ENERGY CORP TLN Utilities 11.2% $66.7M Position History All Holders
3 STEEL DYNAMICS INC NEW STLD Basic Materials 10.6% $63.0M Position History All Holders
4 CENTURI HOLDINGS INC NEW CTRI Utilities 10.4% $61.6M Position History All Holders
5 CARPENTER TECHNOLOGY CORP CRS Industrials 8.8% $52.5M Position History All Holders
6 ANTERO RESOURCES CORP NEW AR Energy 7.4% $44.1M Position History All Holders
7 SKEENA RES LTD NEW SKE Basic Materials 6.6% $39.1M Position History All Holders
8 DYCOM INDS INC NEW DY Industrials 6.0% $35.6M Position History All Holders
9 META PLATFORMS INC NEW META Communication Services 5.8% $34.3M Position History All Holders
10 QUANTA SVCS INC PWR Industrials 5.5% $32.9M Position History All Holders

View Bornite Capital Management's Q1 2026 portfolio changes and trading report →

Latest

Portfolio composition

Sectors, concentrations, and a tap-through treemap of every position in the fund's latest 13F.

Allocation by stock17 positions · click any tile for institutional holders
Allocation by sector6 sectors · same palette as the stock tiles

Holding period analytics

Distribution of holding periods for all 196 stocks the fund has ever held (up to selected quarter):

Which Funds Hold a Similar Portfolio to Bornite Capital Management?

Ranked by percentage of the peer fund's 13F equity portfolio that overlaps with Bornite Capital Management's positions in Q1 2026.

Funds with the most portfolio overlap with Bornite Capital Management in Q1 2026 — Ranked by overlap percentage
# Fund Shared Positions Overlap %
1 Peconic Partners LLC 3 75.0%
2 Newlands Management Operations LLC 1 36.3%
3 KEYWISE CAPITAL MANAGEMENT (HK) Ltd 1 36.0%
4 BlueSpruce Investments, LP 2 34.9%
5 TCI Fund Management Ltd 1 29.8%
6 Trian Fund Management, L.P. 1 29.6%
7 SurgoCap Partners LP 2 28.3%
8 Altimeter Capital Management, LP 2 27.7%
9 Lansdowne Partners (uk) LLP 1 24.2%
10 Gobi Capital LLC 1 23.5%

How Has Bornite Capital Management's AUM Changed Over Time?

Quarterly 13F-reported AUM for Bornite Capital Management, derived from aggregate reported position market values disclosed to the U.S. SEC.

Methodology & FAQ

How We Track Bornite Capital Management Holdings

Our data is systematically aggregated directly from quarterly Form 13F-HR disclosures submitted to the U.S. Securities and Exchange Commission (SEC).

  • Who Must File (Reporting Threshold): This dataset includes filings from U.S. institutional investment managers, hedge funds, mutual funds, university endowments, and family offices managing at least $100 million in Section 13(f) securities (including equities, options, convertibles, ETFs, and warrants).
  • What is Included (Data Scope): By regulation, 13F filings include long positions in U.S. exchange-listed stocks, ETFs, shares of closed-end investment companies, and convertible debt, as defined in the SEC's official Section 13(f) securities list . For listed options (calls/puts) the reported value is based on the notional value.
  • Portfolio Weight Explained (Metric Definition): “Portfolio Weight” shows how much of a fund's total reported 13F portfolio value (excluding listed options) is allocated to a specific position on the reporting date.
  • How to Use This Data (Interpretation): Quarter-over-quarter changes in shares and portfolio weight reflect a combination of active trading and market price movements. These are descriptive metrics of fund allocation, not explicit buy or sell signals.
What does Bornite Capital Management's 13F filing disclose about their portfolio?

A Form 13F-HR filed by Bornite Capital Management with the U.S. SEC discloses all long positions in Section 13(f) securities — U.S.-listed equities, ETFs, closed-end funds, and listed put/call options — held at quarter-end with a market value of at least $200,000 or 10,000 or more shares. Pactolio aggregates these filings to surface the manager’s reported portfolio weights, share counts, and quarter-over-quarter portfolio changes in a structured format. The filing represents a point-in-time snapshot of disclosed long-side exposure, not a real-time or complete view of the fund’s total book.

How do you measure conviction in Bornite Capital Management's portfolio allocations?

Conviction is measured by portfolio weight — the percentage of Bornite Capital Management’s total reported 13F market value allocated to a given position — rather than by absolute share count or dollar value alone. A position representing a disproportionately large share of the fund’s disclosed book signals high-conviction allocation, regardless of whether it ranks among the fund’s largest absolute holdings.

What is excluded from Bornite Capital Management's 13F — short positions, swaps, and derivatives?

SEC Form 13F requires disclosure of long positions only. Specifically excluded are: short interest, total return swaps, credit default swaps, and all OTC derivatives — none of which appear in 13F filings regardless of position size. Listed put and call options must be disclosed but are excluded from portfolio weight calculations on this platform so that reported weights reflect direct equity exposure and remain comparable across filers. This means Bornite Capital Management’s 13F represents the reported long book, which may differ materially from its net economic exposure.

When is Bornite Capital Management's 13F data available, and how large is the reporting lag?

Investment managers must submit Form 13F within 45 calendar days of each quarter-end (the T+45 deadline). Pactolio ingests filings directly from SEC EDGAR as they are published — managers who file early appear in our system before the deadline, while late filers are captured on their actual filing date. The quarter label shown at the top of this page reflects the most recently processed 13F cycle for Bornite Capital Management. The inherent reporting lag means the data always reflects positions as of the prior quarter-end, not current holdings.

Who must file a Form 13F with the SEC, and does Bornite Capital Management qualify?

Under SEC Rule 13f-1, any investment manager — including hedge funds, family offices, registered investment advisers, pension funds, and university endowments — that exercises investment discretion over $100 million or more in Section 13(f) securities at any point during a calendar year must file Form 13F for that year. Bornite Capital Management meets this threshold, which is why its holdings are publicly disclosed and accessible on this platform. The $100 million threshold is evaluated on a rolling basis, meaning new filers can enter and existing filers can exit the disclosure regime as AUM crosses that boundary.