NewMarket Corporation
US ˙ NYSE ˙ US6515871076

SecurityNEU / NewMarket Corporation
InstitutionSignaturefd, Llc
Latest Disclosed Ownership198 shares
Latest Disclosed Value $ 126,908
Signaturefd, Llc reports 2.59% increase in ownership of NEU / NewMarket Corporation

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 198 shares of NewMarket Corporation (US:NEU) valued at $126,908 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 193 shares of NewMarket Corporation. This represents a change in shares of 2.59% during the quarter. The current value of the position is $156,446 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)
2026-04-07 2026-03-31 13F NEWMARKET COM 651587107 198 5 2.59 127 -4.55 0.0019
2026-01-20 2025-12-31 13F NEWMARKET COM 651587107 193 -40 -17.17 133 -31.25 0.0020
2025-10-21 2025-09-30 13F NEWMARKET COM 651587107 233 6 2.64 193 23.08 0.0030
2025-07-16 2025-06-30 13F NEWMARKET COM 651587107 227 0 0.00 157 21.88 0.0027
2025-05-02 2025-03-31 13F NEWMARKET COM 651587107 227 -3 -1.30 129 5.79 0.0024
2025-02-10 2024-12-31 13F NEWMARKET COM 651587107 230 -30 -11.54 122 -15.38 0.0023
2024-10-21 2024-09-30 13F NEWMARKET COM 651587107 260 12 4.84 143 12.60 0.0027
2024-07-29 2024-06-30 13F NEWMARKET COM 651587107 248 1 0.40 128 -18.59 0.0026
2024-05-03 2024-03-31 13F NEWMARKET COM 651587107 247 13 5.56 157 22.83 0.0033
2024-02-01 2023-12-31 13F NEWMARKET COM 651587107 234 3 1.30 128 20.95 0.0029
2023-11-03 2023-09-30 13F NEWMARKET COM 651587107 231 3 1.32 105 15.38 0.0027
2023-08-01 2023-06-30 13F NEWMARKET COM 651587107 228 -1 -0.44 92 9.64 0.0023
2023-04-28 2023-03-31 13F NEWMARKET COM 651587107 229 -26 -10.20 84 5.06 0.0023
2023-01-30 2022-12-31 13F NEWMARKET COM 651587107 255 44 20.85 79 25.40 0.0023
2022-11-08 2022-09-30 13F NEWMARKET COM 651587107 211 -41 -16.27 63 -17.11 0.0022
2022-08-10 2022-06-30 13F NEWMARKET COM 651587107 252 -272 -51.91 76 -55.29 0.0026
2022-05-02 2022-03-31 13F NEWMARKET COM 651587107 524 -28 -5.07 170 -10.05 0.0051
2022-01-25 2021-12-31 13F NEWMARKET COM 651587107 552 -37 -6.28 189 -5.50 0.0058
2021-10-28 2021-09-30 13F NEWMARKET COM 651587107 589 269 84.06 200 94.17 0.0069
2021-07-26 2021-06-30 13F NEWMARKET COM 651587107 320 -48 -13.04 103 -26.43 0.0041
2021-04-30 2021-03-31 13F NEWMARKET COM 651587107 368 -8 -2.13 140 -6.67 0.0062
2021-02-11 2020-12-31 13F NEWMARKET COM 651587107 376 35 10.26 150 28.21 0.0071
2020-11-03 2020-09-30 13F NEWMARKET COM 651587107 341 -145 -29.84 117 -40.00 0.0063
2020-07-30 2020-06-30 13F NEWMARKET COM 651587107 486 45 10.20 195 15.38 0.0118
2020-04-23 2020-03-31 13F NEWMARKET COM 651587107 441 121 37.81 169 8.33 0.0146
2020-02-05 2019-12-31 13F NEWMARKET COM 651587107 320 10 3.23 156 6.85 0.0115
2019-10-16 2019-09-30 13F NEWMARKET COM 651587107 310 -7 -2.21 146 14.96 0.0120
2019-07-31 2019-06-30 13F NEWMARKET COM 651587107 317 3 0.96 127 -6.62 0.0110
2019-05-09 2019-03-31 13F NEWMARKET COM 651587107 314 -5 -1.57 136 3.82 0.0116
2019-02-13 2018-12-31 13F NEWMARKET COM 651587107 319 5 1.59 131 3.15 0.0122
2018-11-14 2018-09-30 13F NEWMARKET COM 651587107 314 -1 -0.32 127 0.00 0.0129
2018-08-14 2018-06-30 13F NEWMARKET COM 651587107 315 311 7,775.00 127 6,250.00 0.0142
2018-05-08 2018-03-31 13F NEWMARKET COM 651587107 4 4 2 0.0002
2016-05-12 2016-03-31 13F NEWMARKET COM 651587107 0 0 0 0.0000
2016-01-22 2015-12-31 13F NEWMARKET COM 651587107 0 -29 -100.00 0 -100.00
2015-10-23 2015-09-30 13F NEWMARKET COM 651587107 29 29 10 0.0023
2014-11-13 2014-09-30 13F NEWMARKET COM 651587107 0 -21 -100.00 0 -100.00
2014-08-14 2014-06-30 13F NEWMARKET COM 651587107 21 21 8 0.0028
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.