NewMarket Corporation
US ˙ NYSE ˙ US6515871076

SecurityNEU / NewMarket Corporation
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership9,206 shares
Latest Disclosed Value $ 5,900,586
Squarepoint Ops LLC ownership in NEU / NewMarket Corporation

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 9,206 shares of NewMarket Corporation (US:NEU) valued at $5,900,586 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of NewMarket Corporation. The current value of the position is $7,194,305 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)
2026-05-15 2026-03-31 13F NEWMARKET COM 651587107 9,206 9,206 5,901 0.0069
2026-02-13 2025-12-31 13F NEWMARKET COM 651587107 0 -1,239 -100.00 0 -100.00
2025-11-14 2025-09-30 13F NEWMARKET COM 651587107 1,239 934 306.23 1,026 388.57 0.0010
2025-08-27 2025-06-30 13F/A-1 NEWMARKET COM 651587107 305 305 211 0.0002
2025-08-14 2025-06-30 13F NEWMARKET COM 651587107 305 305 211 0.0002
2025-08-27 2025-03-31 13F/A-1 NEWMARKET COM 651587107 0 -3,769 -100.00 0 -100.00
2025-05-15 2025-03-31 13F NEWMARKET COM 651587107 0 -3,769 0
2025-02-14 2024-12-31 13F NEWMARKET COM 651587107 3,769 2,108 126.91 1,991 117.36 0.0020
2024-11-14 2024-09-30 13F NEWMARKET COM 651587107 1,661 -195 -10.51 917 -4.18 0.0014
2024-08-14 2024-06-30 13F NEWMARKET COM 651587107 1,856 -136 -6.83 957 -24.37 0.0016
2024-05-15 2024-03-31 13F NEWMARKET COM 651587107 1,992 -2,401 -54.66 1,264 -47.27 0.0022
2024-02-14 2023-12-31 13F NEWMARKET COM 651587107 4,393 4,393 2,398 0.0045
2023-08-14 2023-06-30 13F NEWMARKET COM 651587107 0 -3,176 -100.00 0 -100.00
2023-05-15 2023-03-31 13F NEWMARKET COM 651587107 3,176 1,220 62.37 1,159 90.63 0.0047
2023-02-14 2022-12-31 13F NEWMARKET COM 651587107 1,956 1,956 609 0.0024
2022-08-15 2022-06-30 13F NEWMARKET COM 651587107 0 -824 -100.00 0 -100.00
2022-05-16 2022-03-31 13F NEWMARKET COM 651587107 824 -588 -41.64 267 -44.83 0.0011
2022-02-14 2021-12-31 13F NEWMARKET COM 651587107 1,412 -1,990 -58.50 484 -57.99 0.0013
2021-11-15 2021-09-30 13F NEWMARKET COM 651587107 3,402 3,402 1,152 0.0033
2021-08-16 2021-06-30 13F NEWMARKET COM 651587107 0 -540 -100.00 0 -100.00
2021-05-17 2021-03-31 13F NEWMARKET COM 651587107 540 -2,009 -78.82 205 -79.80 0.0012
2021-02-16 2020-12-31 13F NEWMARKET COM 651587107 2,549 113 4.64 1,015 21.70 0.0076
2020-11-16 2020-09-30 13F NEWMARKET COM 651587107 2,436 -1,493 -38.00 834 -46.98 0.0112
2020-08-14 2020-06-30 13F NEWMARKET COM 651587107 3,929 918 30.49 1,573 36.43 0.0254
2020-05-15 2020-03-31 13F NEWMARKET COM 651587107 3,011 1,676 125.54 1,153 77.38 0.0295
2020-02-14 2019-12-31 13F NEWMARKET COM 651587107 1,335 -33,140 -96.13 650 -96.01 0.0039
2019-11-14 2019-09-30 13F NEWMARKET COM 651587107 34,475 31,080 915.46 16,275 1,095.81 0.1453
2019-08-14 2019-06-30 13F NEWMARKET COM 651587107 3,395 3,395 -90.15 1,361 -91.64 0.0133
2019-05-15 2019-03-31 13F NEWMARKET COM 651587107 0 -715 -100.00 0 -100.00
2019-02-14 2018-12-31 13F NEWMARKET COM 651587107 715 -619 -46.40 295 -45.47 0.0034
2018-11-14 2018-09-30 13F NEWMARKET COM 651587107 1,334 1,334 86.57 541 83.39 0.0065
2018-05-15 2018-03-31 13F NEWMARKET COM 651587107 0 -715 -100.00 0 -100.00
2018-02-14 2017-12-31 13F NEWMARKET COM 651587107 715 715 284 0.0049
2017-05-15 2017-03-31 13F NEWMARKET COM 651587107 0 -1,871 -100.00 0 -100.00
2017-02-14 2016-12-31 13F NEWMARKET COM 651587107 1,871 1,871 0.00 793 0.0324
2016-11-14 2016-09-30 13F NEWMARKET COM 651587107 0 -583 -100.00 0 -100.00
2016-08-15 2016-06-30 13F NEWMARKET COM 651587107 583 -1,866 -76.19 242 -75.05 0.0151
2016-05-16 2016-03-31 13F NEWMARKET COM 651587107 2,449 868 54.90 970 61.13 0.0752
2016-02-16 2015-12-31 13F NEWMARKET COM 651587107 1,581 1,581 602 0.0660
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.