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Livermore
Livermore
ZHEN

Calamos Advisors LLC

SEC CIK
0001316507
Latest filing
Jul 31, 2026

PWR holding history

Quanta Services, Inc. in every 13F filed by Calamos Advisors LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

PWR overviewAll 13F holders of PWRFull Q2 2026 holdings

Shares (Q2 2026)
111,284
Value
$80.1M
% of portfolio
0.3%
Quarters held
22
Since Q1 2021
Holdings of PWR by Calamos Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026111,284$80.1M0.3%+2,783+2.6%AddedHolders
Q1 2026108,501$59.6M0.2%+5,389+5.2%AddedHolders
Q4 2025103,112$43.5M0.2%−2,289−2.2%ReducedHolders
Q3 2025105,401$43.7M0.2%+15,388+17.1%AddedHolders
Q2 202590,013$34.0M0.1%+28,127+45.4%AddedHolders
Q1 202561,886$15.7M0.1%+676+1.1%AddedHolders
Q4 202461,210$19.3M0.1%−130.0%ReducedHolders
Q3 202461,223$18.3M0.1%−1,496−2.4%ReducedHolders
Q2 202462,719$15.9M0.1%−2,340−3.6%ReducedHolders
Q1 202465,059$16.9M0.1%+61,157+1,567.3%AddedHolders
Q4 20233,902$842.1K<0.1%−105,630−96.4%ReducedHolders
Q3 2023109,532$20.5M0.1%−11,275−9.3%ReducedHolders
Q2 2023120,807$23.7M0.1%−353−0.3%ReducedHolders
Q1 2023121,160$20.2M0.1%−5,028−4.0%ReducedHolders
Q4 2022126,188$18.0M0.1%+38,678+44.2%AddedHolders
Q3 202287,510$11.1M0.1%+10,765+14.0%AddedHolders
Q2 202276,745$9.62M<0.1%−73,276−48.8%ReducedHolders
Q1 2022150,021$19.7M0.1%+684+0.5%AddedHolders
Q4 2021149,337$17.1M0.1%−194−0.1%ReducedHolders
Q3 2021149,531$17.0M0.1%+138,027+1,199.8%AddedHolders
Q2 202111,504$1.04M<0.1%+64+0.6%AddedHolders
Q1 202111,440$1.01M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.