Two Sigma Advisers, Lp reports 107.75% increase in ownership of ASIX / AdvanSix Inc.

AdvanSix Inc.

MX ˙ BMV ˙ US00773T1016

Security	MX:ASIX / AdvanSix Inc.
Institution	Two Sigma Advisers, Lp
Latest Disclosed Ownership	192,380 shares
Latest Disclosed Value	$ 3,328,174

On February 17, 2026 - Two Sigma Advisers, Lp filed a 13F-HR form disclosing ownership of 192,380 shares of AdvanSix Inc. (MX:ASIX) valued at $3,328,174 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 92,600 shares of AdvanSix Inc.. This represents a change in shares of 107.75% 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-02-17	2025-12-31	13F	ADVANSIX	COM	00773T101	192,380	99,780	107.75	3,328	85.51	0.0065
2025-11-14	2025-09-30	13F	ADVANSIX	COM	00773T101	92,600	55,200	147.59	1,795	102.03	0.0036
2025-08-14	2025-06-30	13F	ADVANSIX	COM	00773T101	37,400	-5,700	-13.23	888	-9.02	0.0018
2025-05-15	2025-03-31	13F	ADVANSIX	COM	00773T101	43,100	13,800	47.10	976	17.03	0.0022
2025-02-14	2024-12-31	13F	ADVANSIX	COM	00773T101	29,300	800	2.81	835	-3.58	0.0019
2024-11-14	2024-09-30	13F	ADVANSIX	COM	00773T101	28,500	-6,000	-17.39	866	9.49	0.0020
2024-08-14	2024-06-30	13F	ADVANSIX	COM	00773T101	34,500	-5,700	-14.18	791	-31.24	0.0018
2024-05-15	2024-03-31	13F	ADVANSIX	COM	00773T101	40,200	-12,200	-23.28	1,150	-26.77	0.0027
2024-02-14	2023-12-31	13F	ADVANSIX	COM	00773T101	52,400	-8,400	-13.82	1,570	-16.94	0.0037
2023-11-14	2023-09-30	13F	ADVANSIX	COM	00773T101	60,800	19,500	47.22	1,890	30.82	0.0048
2023-08-14	2023-06-30	13F	ADVANSIX	COM	00773T101	41,300	2,100	5.36	1,445	-3.73	0.0037
2023-05-15	2023-03-31	13F	ADVANSIX	COM	00773T101	39,200	6,200	18.79	1,500	19.62	0.0039
2023-02-14	2022-12-31	13F	ADVANSIX	COM	00773T101	33,000	-14,900	-31.11	1,255	-18.47	0.0035
2022-11-14	2022-09-30	13F	ADVANSIX	COM	00773T101	47,900	-200	-0.42	1,538	-4.35	0.0045
2022-08-15	2022-06-30	13F	ADVANSIX	COM	00773T101	48,100	-5,900	-10.93	1,608	-41.72	0.0046
2022-05-16	2022-03-31	13F	ADVANSIX	COM	00773T101	54,000	-3,200	-5.59	2,759	2.07	0.0073
2022-02-14	2021-12-31	13F	ADVANSIX	COM	00773T101	57,200	-50,842	-47.06	2,703	-37.07	0.0068
2021-11-15	2021-09-30	13F	ADVANSIX	COM	00773T101	108,042	-22,500	-17.24	4,295	10.18	0.0111
2021-08-16	2021-06-30	13F	ADVANSIX	COM	00773T101	130,542	3,000	2.35	3,898	13.94	0.0103
2021-05-17	2021-03-31	13F	ADVANSIX	COM	00773T101	127,542	-7,400	-5.48	3,421	26.84	0.0094
2021-02-16	2020-12-31	13F	ADVANSIX	COM	00773T101	134,942	-42,300	-23.87	2,697	18.13	0.0072
2020-11-16	2020-09-30	13F	ADVANSIX	COM	00773T101	177,242	56,642	46.97	2,283	61.23	0.0065
2020-09-15	2020-06-30	13F/A-1	ADVANSIX	COM	00773T101	120,600	7,600	6.73	1,416	31.35	0.0042
2020-08-14	2020-06-30	13F	ADVANSIX	COM	00773T101	120,600	7,600		1,416		4,091.7697
2020-05-15	2020-03-31	13F	ADVANSIX	COM	00773T101	113,000	-5,100	-4.32	1,078	-54.26	0.0041
2020-02-14	2019-12-31	13F	ADVANSIX	COM	00773T101	118,100	-46,100	-28.08	2,357	-44.19	0.0055
2019-11-14	2019-09-30	13F	ADVANSIX	COM	00773T101	164,200	-15,900	-8.83	4,223	-4.02	0.0103
2019-08-14	2019-06-30	13F	ADVANSIX	COM	00773T101	180,100	-5,900	-3.17	4,400	-17.20	0.0110
2019-05-15	2019-03-31	13F	ADVANSIX	COM	00773T101	186,000	-500	-0.27	5,314	17.07	0.0134
2019-02-14	2018-12-31	13F	ADVANSIX	COM	00773T101	186,500	-27,600	-12.89	4,539	-37.56	0.0124
2018-11-14	2018-09-30	13F	ADVANSIX	COM	00773T101	214,100	-32,700	-13.25	7,269	-19.59	0.0177
2018-08-14	2018-06-30	13F	ADVANSIX	COM	00773T101	246,800	900	0.37	9,040	5.71	0.0243
2018-05-15	2018-03-31	13F	ADVANSIX	COM	00773T101	245,900	1,100	0.45	8,552	-16.96	0.0232
2018-02-14	2017-12-31	13F	ADVANSIX	COM	00773T101	244,800	99,800	68.83	10,299	78.68	0.0278
2017-11-14	2017-09-30	13F	ADVANSIX	COM	00773T101	145,000	18,238	14.39	5,764	45.56	0.0163
2017-08-14	2017-06-30	13F	ADVANSIX	COM	00773T101	126,762	87,362	221.73	3,960	268.03	0.0131
2017-05-15	2017-03-31	13F	ADVANSIX	COM	00773T101	39,400	39,400		1,076		0.0035

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.