AdvanSix Inc.
MX ˙ BMV ˙ US00773T1016
SecurityMX:ASIX / AdvanSix Inc.
InstitutionBridgeway Capital Management Inc
Latest Disclosed Ownership162,436 shares
Latest Disclosed Value $ 3,963,438
Bridgeway Capital Management Inc reports 21.14% decrease in ownership of ASIX / AdvanSix Inc.

On May 15, 2026 - Bridgeway Capital Management Inc filed a 13F-HR form disclosing ownership of 162,436 shares of AdvanSix Inc. (MX:ASIX) valued at $3,963,438 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 205,984 shares of AdvanSix Inc.. This represents a change in shares of -21.14% 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)
2026-05-15 2026-03-31 13F ADVANSIX COM 00773T101 162,436 -43,548 -21.14 3,963 11.23 0.0797
2026-02-17 2025-12-31 13F ADVANSIX COM 00773T101 205,984 5,784 2.89 3,564 -8.15 0.0747
2025-11-14 2025-09-30 13F ADVANSIX COM 00773T101 200,200 -64,233 -24.29 3,880 -38.23 0.0828
2025-08-14 2025-06-30 13F ADVANSIX COM 00773T101 264,433 2,394 0.91 6,280 5.81 0.1490
2025-05-15 2025-03-31 13F ADVANSIX COM 00773T101 262,039 3,217 1.24 5,935 -19.50 0.1495
2025-02-14 2024-12-31 13F ADVANSIX COM 00773T101 258,822 7,670 3.05 7,374 -3.36 0.1650
2024-11-14 2024-09-30 13F ADVANSIX COM 00773T101 251,152 7,638 3.14 7,630 36.70 0.1649
2024-08-14 2024-06-30 13F ADVANSIX COM 00773T101 243,514 -34,740 -12.48 5,581 -29.87 0.1307
2024-05-15 2024-03-31 13F ADVANSIX COM 00773T101 278,254 -22,168 -7.38 7,958 -11.58 0.1626
2024-02-14 2023-12-31 13F ADVANSIX COM 00773T101 300,422 -87,028 -22.46 9,001 -25.26 0.1931
2023-11-14 2023-09-30 13F ADVANSIX COM 00773T101 387,450 9,164 2.42 12,042 -9.00 0.2919
2023-08-14 2023-06-30 13F ADVANSIX COM 00773T101 378,286 3,596 0.96 13,232 -7.72 0.3166
2023-05-15 2023-03-31 13F ADVANSIX COM 00773T101 374,690 36,490 10.79 14,339 11.52 0.3807
2023-02-14 2022-12-31 13F ADVANSIX COM 00773T101 338,200 11,100 3.39 12,858 22.46 0.3328
2022-11-14 2022-09-30 13F ADVANSIX COM 00773T101 327,100 67,300 25.90 10,500 20.86 0.2811
2022-08-15 2022-06-30 13F ADVANSIX COM 00773T101 259,800 -50,000 -16.14 8,688 -45.11 0.1986
2022-05-16 2022-03-31 13F ADVANSIX COM 00773T101 309,800 42,600 15.94 15,828 25.37 0.3059
2022-02-14 2021-12-31 13F ADVANSIX COM 00773T101 267,200 30,800 13.03 12,625 34.35 0.2346
2021-11-15 2021-09-30 13F ADVANSIX COM 00773T101 236,400 0 0.00 9,397 33.12 0.1795
2021-08-16 2021-06-30 13F ADVANSIX COM 00773T101 236,400 36,800 18.44 7,059 31.87 0.1263
2021-05-17 2021-03-31 13F ADVANSIX COM 00773T101 199,600 74,200 59.17 5,353 113.52 0.1001
2021-02-16 2020-12-31 13F ADVANSIX COM 00773T101 125,400 0 0.00 2,507 55.23 0.0530
2020-11-16 2020-09-30 13F ADVANSIX COM 00773T101 125,400 -17,500 -12.25 1,615 -3.75 0.0370
2020-08-31 2020-06-30 13F/A-1 ADVANSIX COM 00773T101 142,900 20,000 16.27 1,678 43.17 0.0339
2020-08-14 2020-06-30 13F ADVANSIX COM 00773T101 142,900 20,000 1,678 34,316.9706
2020-05-15 2020-03-31 13F ADVANSIX COM 00773T101 122,900 -26,048 -17.49 1,172 -60.58 0.0268
2020-02-14 2019-12-31 13F ADVANSIX COM 00773T101 148,948 0 0.00 2,973 -22.40 0.0400
2019-11-14 2019-09-30 13F ADVANSIX COM 00773T101 148,948 0 0.00 3,831 5.28 0.0530
2019-08-14 2019-06-30 13F ADVANSIX COM 00773T101 148,948 117,700 376.66 3,639 307.50 0.0465
2019-05-15 2019-03-31 13F ADVANSIX COM 00773T101 31,248 0 0.00 893 17.35 0.0111
2019-02-14 2018-12-31 13F ADVANSIX COM 00773T101 31,248 0 0.00 761 -28.28 0.0101
2018-11-13 2018-09-30 13F ADVANSIX COM 00773T101 31,248 31,248 1,061 0.0103
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.