Peconic Partners

Rating #6

William Harnisch

Peconic Partners

Portfolio value

$4.21B

Stocks

15

Performance

1 Year

+51.67%

Stock Holdings

$

%

1Y

3Y

5Y

10Y

William Harnisch’s Portfolio: Q4 2025

Top10 stocks: 99.32% of the portfolio

William Harnisch’s Trades: Q4 2025

Adds

New Buys

Sold Outs

Cuts

MTZ logo
MTZ

Share Count Chg. (%)

Add +113.33%

Price Paid
$209.86
Buy Value
$178.38M
Portfolio % Change

3.85ppt

AMZN logo
AMZN

Share Count Chg. (%)

Add +7537.69%

Price Paid
$228.79
Buy Value
$68.64M
Portfolio % Change

1.64ppt

FSLR logo
FSLR

Share Count Chg. (%)

Add +195.00%

Price Paid
$252.20
Buy Value
$49.18M
Portfolio % Change

1.22ppt

AMC logo
AMC

Share Count Chg. (%)

Add +50.00%

Price Paid
$2.38
Buy Value
$2.38M
Portfolio % Change

-0.05ppt

William Harnisch’s Holdings: Q4 2025

Company Name
Primary Industry
Avg. price paid
sort
Share Count Chg. (%)
sort
No of shares held
sort
Market value
sort
Portfolio % Change
sort
% of Ownership
sort
Holding period
sort
Last Transaction
Electrical Contractors
$47.30

0.00%

5.01M
$2.11B

50.23%

-7.16ppt

3.36%
37 Quarters
Q3 2025
Utility Construction
$116.01

Cut -0.22%

4.11M
$1.39B

32.99%

-0.23ppt

14.19%
58 Quarters
Q4 2025
Utility Construction
$215.23

Add +113.33%

1.60M
$347.79M

8.27%

3.85ppt

2.06%
2 Quarters
Q4 2025
Metal Mining
$50.79

New Buy +100.00%

2.00M
$101.58M

2.41%

2.41ppt

0.14%
1 Quarter
Q4 2025
Semiconductors
$228.79

Add +195.00%

295.00K
$77.06M

1.83%

1.22ppt

0.28%
3 Quarters
Q4 2025
Retail-Catalog & Mail-Order
$230.64

Add +7537.69%

303.98K
$70.16M

1.67%

1.64ppt

0.00%
11 Quarters
Q4 2025
Crude Oil & Gas
$57.65

0.00%

580.00K
$31.09M

0.74%

-0.13ppt

0.09%
5 Quarters
Q3 2025
Crude Oil & Gas
$40.67

0.00%

800.00K
$28.21M

0.67%

-0.16ppt

0.34%
3 Quarters
Q2 2025
Crude Oil & Gas
$36.63

New Buy +100.00%

300.00K
$10.99M

0.26%

0.26ppt

0.05%
1 Quarter
Q4 2025
Crude Oil & Gas
$26.32

New Buy +100.00%

400.00K
$10.53M

0.25%

0.25ppt

0.05%
1 Quarter
Q4 2025
Crude Oil & Gas
$34.46

New Buy +100.00%

300.00K
$10.34M

0.25%

0.25ppt

0.10%
1 Quarter
Q4 2025
Motion Picture Theaters
$23.24

New Buy +100.00%

400.00K
$9.30M

0.22%

0.22ppt

0.35%
1 Quarter
Q4 2025
Motion Picture Theaters
$2.45

Add +50.00%

3.00M
$4.68M

0.11%

-0.05ppt

0.58%
2 Quarters
Q4 2025
Semiconductors
$130.70

New Buy +100.00%

30.00K
$3.92M

0.09%

0.09ppt

0.09%
1 Quarter
Q4 2025
Computer Programming & Data
$176.23

0.00%

1.80K
$563.40K

0.01%

0.00ppt

0.00%
3 Quarters
Q3 2025
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