Hill City Capital, LP

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 14, 2025), Hill City Capital, LP reported 17 stock positions worth $1.3 billion. Its top holding was Mastec (MTZ) at 18.6% of the portfolio, followed by Spirit Aerosystems Hold Class A (SPR, 15.3%) and First Solar (FSLR, 12.8%). Compared with Q4 2024, it opened 2 new positions, sold out of 4, added to 6 and reduced 1. The biggest buy was First Solar (FSLR, shares +59%) and the biggest sale an exit from Triumph (TGI).

Most Recent 13F
Q2 2026
Location
BOSTON, MA
CIK
0001837343
Portfolio Value
$1.3B (Q1 2025)
SEC Filing
0001837343-25-000004 ↗ filed May 14, 2025

Holdings Value

0$1.0B$2.0B$3.0B$4.0B$5.0B Q1 2024: $1.4B Q1 2024 Q2 2024: $1.4B Q2 2024 Q3 2024: $1.5B Q3 2024 Q4 2024: $1.6B Q4 2024 Q1 2025: $1.3B $1.3B Q1 2025 Q2 2025: $1.9B Q2 2025 Q3 2025: $2.4B Q3 2025 Q4 2025: $2.6B Q4 2025 Q1 2026: $2.8B Q1 2026 Q2 2026: $4.3B Q2 2026

Holdings 17 stocks · $1.3B

MTZ Mastec Inc. 18.64% 2,145,000 $250.3M Add +0.7%
SPR Spirit Aerosystems Hold Class A 15.33% 5,975,000 $205.9M No change
FSLR First Solar Inc. 12.75% 1,355,000 $171.3M Add +59.4%
DY Dycom Industries Inc. 11.00% 969,784 $147.7M Add +14.1%
CRH CRH PLC 7.18% 1,097,000 $96.5M No change
IP International Paper Co. 7.15% 1,800,000 $96.0M Add +16.1%
GVA Granite Construction Inc. 5.95% 1,060,048 $79.9M Add +1.1%
ARRY Array Technologies Inc. 5.17% 14,265,335 $69.5M No change
MMM 3M Co. 4.05% 370,000 $54.3M No change
CNM Core & Main Inc. Class A 2.78% 774,200 $37.4M No change
ATS Ats Corp. 2.41% 1,299,857 $32.4M New
BLDR Builders Firstsource Inc. 2.23% 240,000 $30.0M No change
ENS Enersys 2.16% 317,500 $29.1M Add +14.4%
WEX Wex Inc. 0.99% 85,000 $13.3M No change
SABR Sabre Corp. 0.98% 4,667,000 $13.1M Reduce -29.5%
TFII Tfi International Inc. 0.84% 145,000 $11.2M No change
SITE Siteone Landscape Supply Inc. 0.38% 42,250 $5.1M New

Portfolio Sells Q4 2024 → Q1 2025

TGI Triumph Group Inc. Sold out 0.00% −7.11
ATKR Atkore Inc. Sold out 0.00% −2.46
LB Landbridge Co. LLC-A Sold out 0.00% −2.46
XPO Xpo Inc. Sold out 0.00% −0.84
SABR Sabre Corp. Reduce -29.5% 0.98% −0.57

Portfolio Buys Q4 2024 → Q1 2025

FSLR First Solar Inc. Add +59.4% 12.75% +3.16
ATS Ats Corp. New 2.41% +2.41
IP International Paper Co. Add +16.1% 7.15% +1.81
DY Dycom Industries Inc. Add +14.1% 11.00% +1.52
ENS Enersys Add +14.4% 2.16% +0.52
SITE Siteone Landscape Supply Inc. New 0.38% +0.38
MTZ Mastec Inc. Add +0.7% 18.64% +0.06
GVA Granite Construction Inc. Add +1.1% 5.95% +0.06

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026Amended 28$4.3BMTZ, FSLR, DY, DPC, STM
Q1 2026 23$2.8BMTZ, FSLR, DY, IP, GVA
Q4 2025 23$2.6BFSLR, MTZ, DY, CRH, GVA
Q3 2025 22$2.4BFSLR, MTZ, DY, CRH, GVA
Q2 2025 19$1.9BMTZ, FSLR, DY, SPR, GVA
Q1 2025 17$1.3BMTZ, SPR, FSLR, DY, CRH
Q4 2024 19$1.6BMTZ, SPR, FSLR, DY, TGI
Q3 2024 22$1.5BMTZ, SPR, DY, FSLR, CRH
Q2 2024 24$1.4BMTZ, SPR, ARRY, DY, FSLR
Q1 2024 22$1.4BSPR, MTZ, ARRY, CRH, DY