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Livermore
Livermore
ZHEN

Frontier Capital Management Co LLC

SEC CIK
0000351173
Latest filing
Aug 14, 2026

ATI holding history

Ati Inc in every 13F filed by Frontier Capital Management Co LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ATI overviewAll 13F holders of ATIFull Q2 2026 holdings

Shares (Q2 2026)
419,968
Value
$82.8M
% of portfolio
0.8%
Quarters held
22
Since Q1 2021
Holdings of ATI by Frontier Capital Management Co LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026419,968$82.8M0.8%−274,454−39.5%ReducedHolders
Q1 2026694,422$101.0M1.0%−533,031−43.4%ReducedHolders
Q4 20251,227,453$140.9M1.5%−327,108−21.0%ReducedHolders
Q3 20251,554,561$126.4M1.1%−671,163−30.2%ReducedHolders
Q2 20252,225,724$192.2M1.8%−376,534−14.5%ReducedHolders
Q1 20252,602,258$135.4M1.5%−456,293−14.9%ReducedHolders
Q4 20243,058,551$168.3M1.6%−62,660−2.0%ReducedHolders
Q3 20243,121,211$208.8M2.0%−11,028−0.4%ReducedHolders
Q2 20243,132,239$173.7M1.7%−207,092−6.2%ReducedHolders
Q1 20243,339,331$170.9M1.6%−306,313−8.4%ReducedHolders
Q4 20233,645,644$165.8M1.7%+594,644+19.5%AddedHolders
Q3 20233,051,000$125.5M1.4%−442,594−12.7%ReducedHolders
Q2 20233,493,594$154.5M1.5%−101,572−2.8%ReducedHolders
Q1 20233,595,166$141.9M1.5%+46,960+1.3%AddedHolders
Q4 20223,548,206$105.9M1.2%+2,065,244+139.3%AddedHolders
Q3 20221,482,962$39.5M0.5%+418,467+39.3%AddedHolders
Q2 20221,064,495$24.2M0.3%−769,184−41.9%ReducedHolders
Q1 20221,833,679$49.2M0.4%−21,897−1.2%ReducedHolders
Q4 20211,855,576$29.6M0.2%+446,454+31.7%AddedHolders
Q3 20211,409,122$23.4M0.2%−591,115−29.6%ReducedHolders
Q2 20212,000,237$41.7M0.3%+1,013,330+102.7%AddedHolders
Q1 2021986,907$20.8M0.2%––Holders

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