AdvanSix Inc.
MX ˙ BMV ˙ US00773T1016
SecurityMX:ASIX / AdvanSix Inc.
InstitutionSG Americas Securities, LLC
Latest Disclosed Ownership42,016 shares
Latest Disclosed Value $ 1,025
SG Americas Securities, LLC reports 38.04% decrease in ownership of ASIX / AdvanSix Inc.

On April 16, 2026 - SG Americas Securities, LLC filed a 13F-HR form disclosing ownership of 42,016 shares of AdvanSix Inc. (MX:ASIX) valued at $1,025 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 67,812 shares of AdvanSix Inc.. This represents a change in shares of -38.04% during the quarter.

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)
2026-04-16 2026-03-31 13F ADVANSIX INC COM COM 00773T101 42,016 -25,796 -38.04 1 0.00 0.0011
2026-01-09 2025-12-31 13F ADVANSIX INC COM COM 00773T101 67,812 62,369 1,145.86 1 0.0015
2025-10-23 2025-09-30 13F ADVANSIX INC COM COM 00773T101 5,443 5,443 0 0.0004
2025-08-08 2025-06-30 13F ADVANSIX INC COM COM 00773T101 0 -7,177 -100.00 0 0.0000
2025-04-15 2025-03-31 13F ADVANSIX INC COM COM 00773T101 7,177 7,177 0 0.0005
2025-01-17 2024-12-31 13F ADVANSIX INC COM COM 00773T101 0 -9,392 -100.00 0 0.0000
2024-10-03 2024-09-30 13F ADVANSIX INC COM COM 00773T101 9,392 9,392 0 0.0010
2024-05-06 2024-03-31 13F ADVANSIX INC COM COM 00773T101 0 -19,900 -100.00 0 0.0000
2024-01-12 2023-12-31 13F ADVANSIX INC COM COM 00773T101 19,900 388 1.99 1 0.0056
2023-10-13 2023-09-30 13F ADVANSIX INC COM COM 00773T101 19,512 13,482 223.58 1 0.0069
2023-07-10 2023-06-30 13F ADVANSIX INC COM COM 00773T101 6,030 -12,047 -66.64 0 0.0016
2023-04-28 2023-03-31 13F ADVANSIX INC COM COM 00773T101 18,077 12,670 234.33 1 0.0080
2023-02-02 2022-12-31 13F ADVANSIX INC COM COM 00773T101 5,407 -4,209 -43.77 0 -100.00 0.0025
2022-10-31 2022-09-30 13F ADVANSIX INC COM COM 00773T101 9,616 -7,630 -44.24 309 -46.45 0.0038
2022-07-29 2022-06-30 13F ADVANSIX INC COM COM 00773T101 17,246 -7,822 -31.20 577 -54.96 0.0061
2022-04-29 2022-03-31 13F ADVANSIX INC COM COM 00773T101 25,068 -13,881 -35.64 1,281 -30.38 0.0094
2022-02-07 2021-12-31 13F ADVANSIX INC COM COM 00773T101 38,949 2,203 6.00 1,840 25.94 0.0100
2021-11-01 2021-09-30 13F ADVANSIX INC COM COM 00773T101 36,746 -7,144 -16.28 1,461 11.44 0.0069
2021-08-12 2021-06-30 13F ADVANSIX INC COM COM 00773T101 43,890 31,843 264.32 1,311 305.88 0.0061
2021-05-13 2021-03-31 13F ADVANSIX INC COM COM 00773T101 12,047 -9,702 -44.61 323 -25.75 0.0017
2021-02-04 2020-12-31 13F ADVANSIX INC COM COM 00773T101 21,749 21,749 435 0.0023
2020-11-09 2020-09-30 13F ADVANSIX INC COM COM 00773T101 0 -21,288 -100.00 0 -100.00
2020-07-20 2020-06-30 13F ADVANSIX INC COM COM 00773T101 21,288 6,834 47.28 250 81.16 0.0021
2020-04-30 2020-03-31 13F ADVANSIX INC COM COM 00773T101 14,454 3,169 28.08 138 -38.67 0.0013
2020-01-28 2019-12-31 13F ADVANSIX INC COM COM 00773T101 11,285 5,887 109.06 225 61.87 0.0021
2019-11-04 2019-09-30 13F ADVANSIX INC COM COM 00773T101 5,398 -2,341 -30.25 139 -26.46 0.0011
2019-07-29 2019-06-30 13F ADVANSIX INC COM COM 00773T101 7,739 -9,366 -54.76 189 -61.35 0.0013
2019-04-29 2019-03-31 13F ADVANSIX INC COM COM 00773T101 17,105 8,129 90.56 489 124.31 0.0045
2019-01-31 2018-12-31 13F ADVANSIX INC COM COM 00773T101 8,976 -1,074 -10.69 218 -36.07 0.0019
2018-11-06 2018-09-30 13F ADVANSIX INC COM COM 00773T101 10,050 -5,786 -36.54 341 -41.21 0.0025
2018-08-07 2018-06-30 13F ADVANSIX INC COM COM 00773T101 15,836 10,849 217.55 580 235.26 0.0052
2018-05-03 2018-03-31 13F ADVANSIX INC COM COM 00773T101 4,987 4,987 173 0.0014
2018-01-24 2017-12-31 13F ADVANSIX INC COM COM 00773T101 0 -4,040 -100.00 0 -100.00
2017-11-07 2017-09-30 13F ADVANSIX INC COM COM 00773T101 4,040 825 25.66 161 61.00 0.0014
2017-08-03 2017-06-30 13F ADVANSIX INC COM COM 00773T101 3,215 3,215 100 0.0009
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.