Filed: 5/4/2026ACC: 0001725547-26-000166
📋 What this filing means
MATTERN CAPITAL MANAGEMENT, LLC filed this quarterly 13F‑HR report disclosing 170 equity positions with a total reported market value of $834.89M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
170
Positions
$834.89M
Total AUM (reported)
5.90M
Total Shares
Allocation by class
COM$652.03M78.1%
CL A$33.40M4.0%
SHS$30.47M3.7%
COM NEW$10.87M1.3%
SHS CLASS A$9.53M1.1%
COM CL A$8.15M1.0%
CL B$7.14M0.9%
Portfolio Concentration
Top 3$51.14M6.1%
4–10$90.50M10.8%
11–25$167.43M20.1%
Rest$525.82M63.0%
Top 3 weight
6.1%
Top 10 weight
17.0%
Voting Authority Distribution
Total shares with voting rights: 5.90M
Sole
Full voting authority
5.87M
shares
% of voting shares99.5%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
28.52K
shares
% of voting shares0.5%
Investment Discretion (by position count)
Sole170
Shared0
Other0
Dominant voting typeSole · 99.5% of voting shares
Institutional Holdings170
Rows:
APPLE INC
SOLEShares77.60K
TypeSH
Market value$19.69M
2.36%
Sole
77.49K
Shared
0.00
None
109.00
PHILLIPS 66
SOLEShares88.60K
TypeSH
Market value$16.14M
1.93%
Sole
88.39K
Shared
0.00
None
206.00
MICROSOFT CORP
SOLEShares41.34K
TypeSH
Market value$15.30M
1.83%
Sole
41.26K
Shared
0.00
None
81.00
COSTCO WHOLESALE CORPORATION
SOLEShares14.41K
TypeSH
Market value$14.36M
1.72%
Sole
14.39K
Shared
0.00
None
29.00
CENCORA INC
SOLEShares41.99K
TypeSH
Market value$13.19M
1.58%
Sole
41.91K
Shared
0.00
None
83.00
WW GRAINGER INC
SOLEShares12.01K
TypeSH
Market value$13.10M
1.57%
Sole
11.98K
Shared
0.00
None
27.00
WEC ENERGY GROUP INC
SOLEShares109.95K
TypeSH
Market value$12.73M
1.52%
Sole
109.62K
Shared
0.00
None
327.00
NEXTERA ENERGY INC
SOLEShares133.94K
TypeSH
Market value$12.44M
1.49%
Sole
133.61K
Shared
0.00
None
330.00
CMS ENERGY CORP
SOLEShares159.66K
TypeSH
Market value$12.39M
1.48%
Sole
159.19K
Shared
0.00
None
472.00
LOWES COS INC
SOLEShares52.01K
TypeSH
Market value$12.29M
1.47%
Sole
51.90K
Shared
0.00
None
108.00
AFLAC INC
SOLEShares110.63K
TypeSH
Market value$12.14M
1.45%
Sole
110.39K
Shared
0.00
None
238.00
L3HARRIS TECHNOLOGIES INC
SOLEShares34.74K
TypeSH
Market value$11.99M
1.44%
Sole
34.66K
Shared
0.00
None
84.00
LINDE PLC
SOLEShares24.08K
TypeSH
Market value$11.94M
1.43%
Sole
24.02K
Shared
0.00
None
64.00
AMERICAN WTR WKS CO INC NEW
SOLEShares87.60K
TypeSH
Market value$11.92M
1.43%
Sole
87.34K
Shared
0.00
None
265.00
CHUBB LTD SWITZ
SOLEShares36.12K
TypeSH
Market value$11.77M
1.41%
Sole
36.03K
Shared
0.00
None
94.00
BROADCOM INC
SOLEShares37.22K
TypeSH
Market value$11.52M
1.38%
Sole
37.14K
Shared
0.00
None
77.00
GENERAL DYNAMICS CORP
SOLEShares32.97K
TypeSH
Market value$11.32M
1.36%
Sole
32.88K
Shared
0.00
None
87.00
ATMOS ENERGY CORP
SOLEShares59.71K
TypeSH
Market value$11.03M
1.32%
Sole
59.55K
Shared
0.00
None
161.00
WALMART INC
SOLEShares88.22K
TypeSH
Market value$10.96M
1.31%
Sole
88.04K
Shared
0.00
None
175.00
ABBOTT LABORATORIES
SOLEShares105.89K
TypeSH
Market value$10.87M
1.30%
Sole
105.59K
Shared
0.00
None
295.00
MOTOROLA SOLUTIONS INC
SOLEShares24.56K
TypeSH
Market value$10.66M
1.28%
Sole
24.49K
Shared
0.00
None
70.00
UNITEDHEALTH GROUP INC
SOLEShares38.78K
TypeSH
Market value$10.49M
1.26%
Sole
38.68K
Shared
0.00
None
106.00
CONSTELLATION ENERGY CORP
SOLEShares37.11K
TypeSH
Market value$10.36M
1.24%
Sole
37K
Shared
0.00
None
107.00
ROPER TECHNOLOGIES INC
SOLEShares29.05K
TypeSH
Market value$10.28M
1.23%
Sole
28.97K
Shared
0.00
None
81.00
BROADRIDGE FINL SOLUTIONS IN
SOLEShares62.64K
TypeSH
Market value$10.18M
1.22%
Sole
62.47K
Shared
0.00
None
169.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
APPLE INCSOLE | COM | 77.60K | SH | $19.69M 2.36% | 77.49K | 0.00 | 109.00 |
PHILLIPS 66SOLE | COM | 88.60K | SH | $16.14M 1.93% | 88.39K | 0.00 | 206.00 |
MICROSOFT CORPSOLE | COM | 41.34K | SH | $15.30M 1.83% | 41.26K | 0.00 | 81.00 |
COSTCO WHOLESALE CORPORATIONSOLE | COM | 14.41K | SH | $14.36M 1.72% | 14.39K | 0.00 | 29.00 |
CENCORA INCSOLE | COM | 41.99K | SH | $13.19M 1.58% | 41.91K | 0.00 | 83.00 |
WW GRAINGER INCSOLE | COM | 12.01K | SH | $13.10M 1.57% | 11.98K | 0.00 | 27.00 |
WEC ENERGY GROUP INCSOLE | COM | 109.95K | SH | $12.73M 1.52% | 109.62K | 0.00 | 327.00 |
NEXTERA ENERGY INCSOLE | COM | 133.94K | SH | $12.44M 1.49% | 133.61K | 0.00 | 330.00 |
CMS ENERGY CORPSOLE | COM | 159.66K | SH | $12.39M 1.48% | 159.19K | 0.00 | 472.00 |
LOWES COS INCSOLE | COM | 52.01K | SH | $12.29M 1.47% | 51.90K | 0.00 | 108.00 |
AFLAC INCSOLE | COM | 110.63K | SH | $12.14M 1.45% | 110.39K | 0.00 | 238.00 |
L3HARRIS TECHNOLOGIES INCSOLE | COM | 34.74K | SH | $11.99M 1.44% | 34.66K | 0.00 | 84.00 |
LINDE PLCSOLE | SHS | 24.08K | SH | $11.94M 1.43% | 24.02K | 0.00 | 64.00 |
AMERICAN WTR WKS CO INC NEWSOLE | COM | 87.60K | SH | $11.92M 1.43% | 87.34K | 0.00 | 265.00 |
CHUBB LTD SWITZSOLE | COM | 36.12K | SH | $11.77M 1.41% | 36.03K | 0.00 | 94.00 |
BROADCOM INCSOLE | COM | 37.22K | SH | $11.52M 1.38% | 37.14K | 0.00 | 77.00 |
GENERAL DYNAMICS CORPSOLE | COM | 32.97K | SH | $11.32M 1.36% | 32.88K | 0.00 | 87.00 |
ATMOS ENERGY CORPSOLE | COM | 59.71K | SH | $11.03M 1.32% | 59.55K | 0.00 | 161.00 |
WALMART INCSOLE | COM | 88.22K | SH | $10.96M 1.31% | 88.04K | 0.00 | 175.00 |
ABBOTT LABORATORIESSOLE | COM | 105.89K | SH | $10.87M 1.30% | 105.59K | 0.00 | 295.00 |
MOTOROLA SOLUTIONS INCSOLE | COM NEW | 24.56K | SH | $10.66M 1.28% | 24.49K | 0.00 | 70.00 |
UNITEDHEALTH GROUP INCSOLE | COM | 38.78K | SH | $10.49M 1.26% | 38.68K | 0.00 | 106.00 |
CONSTELLATION ENERGY CORPSOLE | COM | 37.11K | SH | $10.36M 1.24% | 37K | 0.00 | 107.00 |
ROPER TECHNOLOGIES INCSOLE | COM | 29.05K | SH | $10.28M 1.23% | 28.97K | 0.00 | 81.00 |
BROADRIDGE FINL SOLUTIONS INSOLE | COM | 62.64K | SH | $10.18M 1.22% | 62.47K | 0.00 | 169.00 |
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