ATI Inc.
US ˙ NYSE ˙ US01741R1023

SecurityATI / ATI Inc.
InstitutionAperio Group, LLC
Latest Disclosed Ownership52,823 shares
Latest Disclosed Value $ 886,000
Aperio Group, LLC reports 25.39% decrease in ownership of ATI / ATI Inc.

On February 5, 2021 - Aperio Group, LLC filed a 13F-HR form disclosing ownership of 52,823 shares of ATI Inc. (US:ATI) valued at $885,842 USD as of December 31, 2020. The entity filed a previous 13F-HR on November 6, 2020 disclosing 70,802 shares of ATI Inc.. This represents a change in shares of -25.39% during the quarter. The current value of the position is $9,374,498 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2021-02-05 2020-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 52,823 -17,979 -25.39 886 43.60 0.0026
2020-11-06 2020-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 70,802 14,297 25.30 617 7.12 0.0021
2020-08-13 2020-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 56,505 -5,340 -8.63 576 9.51 0.0021
2020-05-05 2020-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 61,845 1,761 2.93 526 -57.61 0.0023
2020-02-13 2019-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 60,084 2,168 3.74 1,241 5.80 0.0045
2019-11-06 2019-09-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 57,916 -2,126 -3.54 1,173 -22.47 0.0046
2019-07-30 2019-06-30 13F ALLEGHENY TECHNOLOGIES COM 01741R102 60,042 9,718 19.31 1,513 17.56 0.0062
2019-05-13 2019-03-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 50,324 1,942 4.01 1,287 22.22 0.0056
2019-05-06 2018-12-31 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 48,382 -1,517 -3.04 1,053 -28.61 0.0053
2019-02-14 2018-12-31 13F ALLEGHENY TECHNOLOGIES COM 01741R102 48,402 -1,497 1,054
2019-05-06 2018-09-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 49,899 537 1.09 1,475 18.95 0.0065
2018-10-17 2018-09-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 49,899 537 1,475
2019-05-06 2018-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 49,362 -2,776 -5.32 1,240 0.40 0.0059
2018-07-30 2018-06-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 49,362 -2,776 1,240
2019-05-01 2018-03-31 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 52,138 -5 -0.01 1,235 -1.91 0.0061
2018-05-08 2018-03-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 52,138 -5 1,235
2019-05-01 2017-12-31 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 52,143 1,624 3.21 1,259 4.31 0.0065
2018-02-02 2017-12-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 52,143 1,624 1,259
2019-05-01 2017-09-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 50,519 -20,905 -29.27 1,207 -0.66 0.0068
2017-10-25 2017-09-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 50,519 -20,905 1,207
2019-04-22 2017-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 71,424 28,369 65.89 1,215 57.18 0.0074
2017-07-18 2017-06-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 71,424 28,369 1,215
2019-04-22 2017-03-31 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 43,055 2,233 5.47 773 18.92 0.0053
2017-05-05 2017-03-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 43,055 2,233 773
2019-04-22 2016-12-31 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 40,822 -7,493 -15.51 650 -25.54 0.0050
2017-02-14 2016-12-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 40,822 -7,493 650
2019-04-12 2016-09-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 48,315 1,402 2.99 873 45.99 0.0063
2016-11-01 2016-09-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 48,315 1,402 873
2019-04-12 2016-06-30 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 46,913 2,791 6.33 598 -16.83 0.0047
2016-08-12 2016-06-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 46,913 2,791 598
2019-04-12 2016-03-31 13F/A-1 ALLEGHENY TECHNOLOGIES COM 01741R102 44,122 1,549 3.64 719 50.10 0.0062
2016-04-28 2016-03-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 44,122 1,549 719
2016-01-21 2015-12-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 42,573 27,345 179.57 479 121.76 0.0044
2015-10-19 2015-09-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 15,228 1,263 9.04 216 -48.82 0.0022
2015-07-29 2015-06-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 13,965 1,081 8.39 422 9.04 0.0044
2015-04-29 2015-03-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 12,884 12,884 0.00 387 0.0043
2015-01-30 2014-12-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 0 -14,275 -100.00 0 -100.00
2014-10-21 2014-09-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 14,275 901 6.74 530 -12.11 0.0072
2014-07-23 2014-06-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 13,374 740 5.86 603 26.68 0.0088
2014-04-25 2014-03-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 12,634 476 10.70 0.0067
2014-01-30 2013-12-31 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 430 23.21 0.0067
2013-10-24 2013-09-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 11,446 458 4.17 349 20.76 0.0067
2013-07-19 2013-06-30 13F ALLEGHENY TECHNOLOGIE COMMON 01741R102 10,988 289
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.