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ATLAS Infrastructure Partners (UK) Ltd.

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$3.3B
Positions
11
Quarter ended
June 30, 2026
Filed
August 14, 2026

Reported portfolio value by quarter (19 quarters reported)

$3.3B $417M
Q4 21 Q4 22 Q4 23 Q4 24 Q4 25 Q2 26

$646M in Q4 2021 → $3.3B now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
PW Pinnacle West Cap Corp 17.3% Added 5.1% 5,332,226 $571M
PS Public Svc Enterprise Group 15.2% Added 52% 6,163,358 $500M
Consolidated Edison Inc 11.5% Added 12% 3,418,444 $378M
Emera Inc 11.4% Trimmed 21% 7,069,271 $375M
Exelon Corp 11.0% New 7,750,912 $361M
EI Edison Intl 8.7% Added 5.4% 3,839,521 $286M
H2o America 8.5% Added 1.8% 4,612,035 $280M
PG&E Corp 8.0% Added 17% 15,629,238 $263M
CW California Wtr Svc Group 2.9% New 1,984,605 $96.6M
Sba Communications Corp 2.8% Trimmed 49% 532,422 $94M
Avista Corp 2.8% New 2,291,179 $93.7M

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 14, 2026

Company Action Shares changed Value of change % of portfolio
Exelon Corp New +7,750,912 +$361M 11.0%
UP Union Pac Corp Exited −1,015,731 −$246M
PS Public Svc Enterprise Group Added +2,120,800 +$172M 15.2%
Emera Inc Trimmed −1,898,159 −$101M 11.4%
CW California Wtr Svc Group New +1,984,605 +$96.6M 2.9%
Avista Corp New +2,291,179 +$93.7M 2.8%
Sba Communications Corp Trimmed −501,953 −$88.6M 2.8%
Consolidated Edison Inc Added +370,925 +$41M 11.5%
PG&E Corp Added +2,289,143 +$38.5M 8.0%
PW Pinnacle West Cap Corp Added +257,813 +$27.6M 17.3%

Showing the 10 largest of 12 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 15, 2026

Company Action Shares changed Value of change % of portfolio
H2o America Added +3,948,004 +$232M 9.4%
Sba Communications Corp New +1,034,375 +$178M 6.3%
Emera Inc Added +3,092,278 +$160M 16.4%
PG Portland Gen Elec Co Exited −1,938,334 −$93M
PS Public Svc Enterprise Group Added +1,127,926 +$91.3M 11.5%
PW Pinnacle West Cap Corp Added +613,170 +$61.8M 18.0%
UP Union Pac Corp Added +105,709 +$25.6M 8.7%
Consolidated Edison Inc Added +206,110 +$23.3M 12.1%
EI Edison Intl Trimmed −257,776 −$18.9M 9.4%
PG&E Corp Trimmed −785,290 −$13.8M 8.3%

Q4 2025

quarter ended December 31, 2025 · filed February 17, 2026

Company Action Shares changed Value of change % of portfolio
Exelon Corp Exited −4,967,487 −$224M
PW Pinnacle West Cap Corp Added +1,369,350 +$121M 19.8%
PG Portland Gen Elec Co Trimmed −2,444,158 −$117M 4.7%
Emera Inc Added +2,217,111 +$109M 14.5%
UP Union Pac Corp Added +394,379 +$91.2M 10.6%
PG&E Corp Added +3,929,873 +$63.2M 11.4%
H2o America New +584,080 +$28.6M 1.4%
PS Public Svc Enterprise Grp In Added +346,908 +$27.9M 11.7%
EI Edison Intl Trimmed −395,820 −$23.8M 11.7%
Consolidated Edison Inc Added +214,649 +$21.3M 14.2%

Q3 2025

quarter ended September 30, 2025 · filed November 14, 2025

Company Action Shares changed Value of change % of portfolio
Emera Inc New +3,658,041 +$175M 9.4%
PS Public Svc Enterprise Grp In Added +1,841,020 +$154M 11.5%
UP Union Pac Corp New +515,643 +$122M 6.6%
PG Portland Gen Elec Co Trimmed −1,076,766 −$47.4M 10.4%
Exelon Corp Trimmed −1,036,321 −$46.6M 12.0%
Consolidated Edison Inc Added +217,472 +$21.9M 14.2%
PW Pinnacle West Cap Corp Added +228,943 +$20.5M 14.9%
EI Edison Intl Added +9,664 +$534K 12.8%
PG&E Corp Added +33,394 +$504K 8.3%

Q2 2025

quarter ended June 30, 2025 · filed August 14, 2025

Company Action Shares changed Value of change % of portfolio
PS Public Svc Enterprise Grp In New +726,704 +$61.2M 4.4%
PG Portland Gen Elec Co Added +1,058,623 +$43M 15.8%
Consolidated Edison Inc Added +110,666 +$11.1M 17.2%
Exelon Corp Added +208,242 +$9.04M 18.6%
PW Pinnacle West Cap Corp Added +69,404 +$6.21M 18.2%
EI Edison Intl Trimmed −110,652 −$5.71M 15.7%
PG&E Corp Trimmed −266,210 −$3.71M 10.1%

Q1 2025

quarter ended March 31, 2025 · filed May 15, 2025

Company Action Shares changed Value of change % of portfolio
Consolidated Edison Inc New +2,298,622 +$254M 17.9%
PW Pinnacle West Cap Corp Added +1,948,416 +$186M 18.7%
Exelon Corp Added +3,815,722 +$176M 18.8%
EI Edison Intl Added +2,916,645 +$172M 18.2%
PG Portland Gen Elec Co Added +2,736,811 +$122M 13.8%
PG&E Corp Added +6,873,576 +$118M 12.6%
Avista Corp Exited −217,307 −$7.96M

Q4 2024

quarter ended December 31, 2024 · filed February 14, 2025

Company Action Shares changed Value of change % of portfolio
EI Edison Intl Trimmed −3,696,431 −$295M 28.4%
PW Pinnacle West Cap Corp Trimmed −2,711,701 −$230M 17.2%
Exelon Corp Trimmed −4,960,586 −$187M 17.9%
PG&E Corp Trimmed −8,757,280 −$177M 17.2%
PG Portland Gen Elec Co Trimmed −1,488,658 −$64.9M 17.4%
Avista Corp New +217,307 +$7.96M 1.9%

Q3 2024

quarter ended September 30, 2024 · filed November 14, 2024

Company Action Shares changed Value of change % of portfolio
PG&E Corp New +12,312,032 +$243M 16.9%
Avangrid Inc Exited −6,565,004 −$233M
Exelon Corp Added +1,593,697 +$64.6M 19.5%
Consolidated Edison Inc Exited −283,555 −$25.4M
PW Pinnacle West Cap Corp Added +273,412 +$24.2M 21.9%
PG Portland Gen Elec Co Trimmed −102,230 −$4.9M 10.5%
EI Edison Intl Added +45,176 +$3.93M 31.3%

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