Alleghany Corp.
US ˙ NYSE ˙ US0171751003
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityY / Alleghany Corp.
InstitutionAperio Group, LLC
Latest Disclosed Ownership3,595 shares
Latest Disclosed Value $ 2,170,000
Aperio Group, LLC reports 19.99% decrease in ownership of Y / Alleghany Corp.

On February 5, 2021 - Aperio Group, LLC filed a 13F-HR form disclosing ownership of 3,595 shares of Alleghany Corp. (US:Y) valued at $2,170,266 USD as of December 31, 2020. The entity filed a previous 13F-HR on November 6, 2020 disclosing 4,493 shares of Alleghany Corp.. This represents a change in shares of -19.99% during the quarter. The current value of the position is $0 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 ALLEGHANY CORP DEL COM 017175100 3,595 -898 -19.99 2,170 -7.19 0.0064
2020-11-06 2020-09-30 13F ALLEGHANY CORP DEL COM 017175100 4,493 1,324 41.78 2,338 50.84 0.0079
2020-08-13 2020-06-30 13F ALLEGHANY CORP DEL COM 017175100 3,169 -2,409 -43.19 1,550 -49.69 0.0057
2020-05-05 2020-03-31 13F ALLEGHANY CORP DEL COM 017175100 5,578 717 14.75 3,081 -20.74 0.0136
2020-02-13 2019-12-31 13F ALLEGHANY CORP DEL COM 017175100 4,861 287 6.27 3,887 6.52 0.0140
2019-11-06 2019-09-30 13F ALLEGHANY CORP DEL COM 017175100 4,574 -161 -3.40 3,649 13.15 0.0144
2019-07-30 2019-06-30 13F ALLEGHANY CORP DEL COM 017175100 4,735 17 0.36 3,225 11.63 0.0132
2019-05-13 2019-03-31 13F ALLEGHANY CORP DEL COM 017175100 4,718 135 2.95 2,889 1.12 0.0125
2019-05-06 2018-12-31 13F/A-1 ALLEGHANY CORP DEL COM 017175100 4,583 186 4.23 2,857 -0.42 0.0144
2019-02-14 2018-12-31 13F ALLEGHANY CORP DEL COM 017175100 4,738 341 2,953
2019-05-06 2018-09-30 13F/A-1 ALLEGHANY CORP DEL COM 017175100 4,397 -38 -0.86 2,869 12.51 0.0127
2018-10-17 2018-09-30 13F ALLEGHANY CORP DEL COMMON 017175100 4,397 -38 2,869
2019-05-06 2018-06-30 13F/A-1 ALLEGHANY CORP DEL COM 017175100 4,435 -1,368 -23.57 2,550 -28.49 0.0122
2018-07-30 2018-06-30 13F ALLEGHANY CORP DEL COMMON 017175100 4,435 -1,368 2,550
2019-05-01 2018-03-31 13F/A-1 ALLEGHANY CORP DEL COM 017175100 5,803 -105 -1.78 3,566 1.25 0.0177
2018-05-08 2018-03-31 13F ALLEGHANY CORP DEL COMMON 017175100 5,803 -105 3,566
2019-05-01 2017-12-31 13F/A-1 ALLEGHANY CORP DEL COM 017175100 5,908 -210 -3.43 3,522 3.92 0.0182
2018-02-02 2017-12-31 13F ALLEGHANY CORP DEL COMMON 017175100 5,908 -210 3,522
2019-05-01 2017-09-30 13F/A-1 ALLEGHANY CORP DEL COM 017175100 6,118 -116 -1.86 3,389 -8.60 0.0191
2017-10-25 2017-09-30 13F ALLEGHANY CORP DEL COMMON 017175100 6,118 -116 3,389
2019-04-22 2017-06-30 13F/A-1 ALLEGHANY CORP DEL COM 017175100 6,234 370 6.31 3,708 2.89 0.0227
2017-07-18 2017-06-30 13F ALLEGHANY CORP DEL COMMON 017175100 6,234 370 3,708
2019-04-22 2017-03-31 13F/A-1 ALLEGHANY CORP DEL COM 017175100 5,864 917 18.54 3,604 19.81 0.0246
2017-05-05 2017-03-31 13F ALLEGHANY CORP DEL COMMON 017175100 5,864 917 3,604
2019-04-22 2016-12-31 13F/A-1 ALLEGHANY CORP DEL COM 017175100 4,947 -219 -4.24 3,008 10.91 0.0230
2017-02-14 2016-12-31 13F ALLEGHANY CORP DEL COMMON 017175100 4,947 -219 3,008
2019-04-12 2016-09-30 13F/A-1 ALLEGHANY CORP DEL COM 017175100 5,166 -163 -3.06 2,712 -7.41 0.0196
2016-11-01 2016-09-30 13F ALLEGHANY CORP DEL COMMON 017175100 5,166 -163 2,712
2019-04-12 2016-06-30 13F/A-1 ALLEGHANY CORP DEL COM 017175100 5,329 635 13.53 2,929 25.76 0.0229
2016-08-12 2016-06-30 13F ALLEGHANY CORP DEL COMMON 017175100 5,329 635 2,929
2019-04-12 2016-03-31 13F/A-1 ALLEGHANY CORP DEL COM 017175100 4,694 145 3.19 2,329 7.13 0.0199
2016-04-28 2016-03-31 13F ALLEGHANY CORP DEL COMMON 017175100 4,694 145 2,329
2016-01-21 2015-12-31 13F ALLEGHANY CORP DEL COMMON 017175100 4,549 366 8.75 2,174 11.03 0.0199
2015-10-19 2015-09-30 13F ALLEGHANY CORP DEL COMMON 017175100 4,183 285 7.31 1,958 7.17 0.0199
2015-07-29 2015-06-30 13F ALLEGHANY CORP DEL COMMON 017175100 3,898 483 14.14 1,827 9.86 0.0189
2015-04-29 2015-03-31 13F ALLEGHANY CORP DEL COMMON 017175100 3,415 3,415 0.00 1,663 0.0186
2015-01-30 2014-12-31 13F ALLEGHANY CORP DEL COMMON 017175100 0 -2,359 -100.00 0 -100.00
2014-10-21 2014-09-30 13F ALLEGHANY CORP DEL COMMON 017175100 2,359 311 15.19 986 9.92 0.0133
2014-07-23 2014-06-30 13F ALLEGHANY CORP DEL COMMON 017175100 2,048 329 19.14 897 28.14 0.0130
2014-04-25 2014-03-31 13F ALLEGHANY CORP DEL COMMON 017175100 1,719 700 92.31 0.0098
2014-01-30 2013-12-31 13F ALLEGHANY CORP DEL COMMON 017175100 364 -12.50 0.0056
2013-10-24 2013-09-30 13F ALLEGHANY CORP DEL COMMON 017175100 1,015 178 21.27 416 29.60 0.0080
2013-07-19 2013-06-30 13F ALLEGHANY CORP DEL COMMON 017175100 837 321
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.