HALLSTATT ADVISORS L.P. — 13F Holdings

2026 Q2  ·  17 Positions

2026 Q2 Portfolio Activity

In 2026 Q2, HALLSTATT ADVISORS L.P. maintained a portfolio of 17 distinct positions. The most significant new addition was AMPHENOL CORP CL A, now representing 8.07% of the total fund value. They heavily accumulated shares in SOLARIS ENERGY INFRAS INC COM , increasing the position by 22.2%. Conversely, HALLSTATT ADVISORS L.P. completely exited their position in BELDEN INC.
Position History hover any row below to update
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PCA Score Concentration Risk
Risk ENB
Total Positions
17
Quarter
2026 Q2
Top Holding
GVA (14.8%)
Top 10 Concentration
92.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-17 of 17

HALLSTATT ADVISORS L.P. Full Holdings List — 2026 Q2

Stock History Sector / Type Port % Prev % Rank / Prev Conviction
Freshness
Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
GVA
GRANITE CONSTR ...
Industrials 14.76% 12.56% #1
Prev: #1
7.0
no change no change
P
S
132,484 $20,943,071
$115.13 +10.4%
$158.08 -19.6%
2025 Q4 13F Filing 2026-06-30 2026-08-04
CWST
CASELLA WASTE S...
Industrials 12.95% 10.38% #2 2
Prev: #4
7.5
24,142 14.6%
P
S
189,527 $18,378,433
$95.83 -5.3%
$96.97 -6.4%
2025 Q4 13F Filing 2026-06-30 2026-08-04
TEL
TE CONNECTIVITY...
Technology 9.46% 8.75% #3 2
Prev: #5
7.3
13,640 25.8%
P
S
66,564 $13,419,968 2025 Q4 13F Filing 2026-06-30 2026-08-04
VST
VISTRA CORP
Utilities 9.10% 8.22% #4 2
Prev: #6
6.1
12,367 17.9%
P
S
81,444 $12,919,462 2026 Q1 13F Filing 2026-06-30 2026-08-04
CTRI
CENTURI HOLDING...
Utilities 8.56% 6.60% #5 2
Prev: #7
6.4
115,994 40.6%
P
S
401,715 $12,147,862 2025 Q4 13F Filing 2026-06-30 2026-08-04
CLH
CLEAN HARBORS I...
Industrials 8.40% 10.46% #6 3
Prev: #3
3.9
-6,198 -13.4%
P
S
39,917 $11,925,204 2025 Q4 13F Filing 2026-06-30 2026-08-04
SEI
SOLARIS ENERGY ...
Energy 8.33% 5.37% #7 5
Prev: #12
5.8
26,698 22.2%
P
S
146,907 $11,820,137 2026 Q1 13F Filing 2026-06-30 2026-08-04
APH
AMPHENOL CORP C...
Technology 8.07% #8
Prev: #—
6.7
64,975
NEW
64,975 $11,456,392 2026 Q2 13F Filing 2026-06-30 2026-08-04
GFL
GFL ENVIRONMENT...
Industrials 6.90% 10.54% #9 7
Prev: #2
3.3
-53,083 -16.6%
P
S
266,189 $9,793,093 2025 Q4 13F Filing 2026-06-30 2026-08-04
SECYF
SECURE WASTE IN...
Industrials 5.52% 6.23% #10 2
Prev: #8
3.2
no change no change
P
S
501,743 $7,831,959 2026 Q1 13F Filing 2026-06-30 2026-08-04
EXP
EAGLE MATLS INC
Basic Materials 3.56% 5.59% #11 2
Prev: #9
1.4
-14,860 -39.8%
P
S
22,463 $5,054,175 2025 Q4 13F Filing 2026-06-30 2026-08-04
MT
ARCELORMITTAL S...
Basic Materials 2.71% 2.86% #12 1
Prev: #13
1.6
-5,540 -8.0%
P
S
63,949 $3,851,009 2025 Q4 13F Filing 2026-06-30 2026-08-04
ATS
ATS CORPORATION
Industrials 1.68% #13
Prev: #—
4.2
83,020
NEW
83,020 $2,390,633 2026 Q2 13F Filing 2026-06-30 2026-08-04
N/A
SIEMENS ENERGY ...
Unknown 0.00% 0.28%
Sold All 😨
(Was: #15)
0.0
-2,125 -100.0%
CLOSED
$— 13F Filing 2026-06-30 2026-08-04
AER
AERCAP HOLDINGS...
Industrials 0.00% 1.09%
Sold All 😨
(Was: #14)
0.0
-10,040 -100.0%
CLOSED
$— 2025 Q4 13F Filing 2026-06-30 2026-08-04
MRVL
MARVELL TECHNOL...
Technology 0.00% 5.47%
Sold All 😨
(Was: #11)
0.0
-69,828 -100.0%
CLOSED
$— 2025 Q4 13F Filing 2026-06-30 2026-08-04
BDC
BELDEN INC
Technology 0.00% 5.59%
Sold All 😨
(Was: #10)
0.0
-61,576 -100.0%
CLOSED
$— 2026 Q1 13F Filing 2026-06-30 2026-08-04
Showing 1-17 of 17 holdings

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