13F

Investor

HALLSTATT ADVISORS L.P.

CIK 0002040638 · filed 2026-05-07 · SEC filing

13F book

$126.4M

Positions

15

5 new · 6 sold

Largest name

12.6%

Granite Constr Inc

Est. mark

$1.27M

Price effect on 10 names still held. Flow −$9.07M.
NameTickerSharesValueWeightEst. markChange
Granite Constr Inc132.5K$15.9M12.6%$600.2KCut−$382.5K
GFL Environmental Inc.GFL319.3K$13.3M10.5%−$238.1KAdded$5.01M
Clean Harbors IncCLH46.1K$13.2M10.5%$2.41MCut−$2.04M
Casella Waste Sys Inc165.4K$13.1M10.4%−$2.7MAdded−$1.09M
Te Connectivity PlcTEL52.9K$11.1M8.8%−$673.9KAdded$2.77M
Vistra Corp.VST69.1K$10.4M8.2%New
Centuri Holdings, Inc.CTRI285.7K$8.35M6.6%$1.13MCut−$355.8K
Secure Waste Infrastructure Corp.501.7K$7.87M6.2%New
Eagle Matls Inc37.3K$7.07M5.6%−$625.1KAdded−$427.3K
Belden Inc.BDC61.6K$7.07M5.6%New
Marvell Technology, Inc.MRVL69.8K$6.92M5.5%$982.5KCut−$1.33M
Solaris Energy Infras Inc120.2K$6.79M5.4%New
Arcelormittal Sa Luxembourg69.5K$3.61M2.9%$445.4KCut−$4.93M
Aercap Holdings Nv10K$1.38M1.1%−$66.1KCut−$12M
Siemens Energy Ag Npv Adr2.13K$358.5K0.3%New

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.