NewMarket Corporation
DE ˙ DB ˙ US6515871076
655,00 € ↓ -15,00 (-2,24%)
2026-06-01
AKTIENPREIS
SecurityDE:UG9 / NewMarket Corporation
InstitutionBarclays Plc
Latest Disclosed Ownership5,899 shares
Latest Disclosed Value $ 4,054,148
Barclays Plc ownership in UG9 / NewMarket Corporation

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 5,899 shares of NewMarket Corporation (DE:UG9) valued at $3,509,905 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 8,753 shares of NewMarket Corporation. This represents a change in shares of -32.61% during the quarter. The current value of the position is $3,863,845 USD.

Barclays Plc has a history of taking positions in derivatives of the underlying security (UG9) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:UG9 / NewMarket Corporation Historical Put/Call Ratio
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)
2026-02-13 2025-12-31 13F NEWMARKET COM 651587107 5,899 -2,854 -32.61 4,054 -44.08 0.0010
2026-03-31 2025-09-30 13F/A-3 NEWMARKET COM 651587107 8,753 -11,816 -57.45 7,249 -48.99 0.0016
2026-03-19 2025-09-30 13F/A-2 NEWMARKET COM 651587107 4,813 -15,756 2,656 0.0007
2025-11-12 2025-09-30 13F NEWMARKET COM 651587107 8,753 -11,816 7,249 0.0016
2026-02-27 2025-06-30 13F/A-2 NEWMARKET COM 651587107 20,569 -3,906 -15.96 14,210 2.50 0.0033
2025-08-14 2025-06-30 13F/A-1 NEWMARKET COM 651587107 20,569 -3,906 14 0.0033
2025-08-13 2025-06-30 13F NEWMARKET COM 651587107 20,569 -3,906 14 0.0011
2026-03-17 2025-03-31 13F/A-1 NEWMARKET COM 651587107 24,475 5,547 29.31 13,864 38.63 0.0039
2025-05-15 2025-03-31 13F NEWMARKET COM 651587107 24,475 5,547 14 0.0039
2026-03-19 2024-12-31 13F/A-1 NEWMARKET COM 651587107 18,928 14,115 293.27 10,001 276.51 0.0028
2025-02-13 2024-12-31 13F NEWMARKET COM 651587107 18,928 14,115 10 0.0028
2026-03-31 2024-09-30 13F/A-2 NEWMARKET COM 651587107 4,813 1,235 34.52 2,656 44.03 0.0007
2024-11-19 2024-09-30 13F/A-1 NEWMARKET COM 651587107 4,813 1,235 3 0.0007
2024-11-15 2024-09-30 13F NEWMARKET COM 651587107 4,813 1,235 3 0.0007
2026-03-23 2024-06-30 13F/A-1 NEWMARKET COM 651587107 3,578 -5,643 -61.20 1,845 -68.48 0.0006
2024-08-14 2024-06-30 13F NEWMARKET COM 651587107 3,578 -5,643 2 0.0006
2026-03-24 2024-03-31 13F/A-1 NEWMARKET COM 651587107 9,221 2,020 28.05 5,852 48.88 0.0020
2024-05-15 2024-03-31 13F NEWMARKET COM 651587107 9,221 2,020 6 0.0020
2026-03-25 2023-12-31 13F/A-1 NEWMARKET COM 651587107 7,201 2,283 46.42 3,931 75.68 0.0014
2024-02-15 2023-12-31 13F NEWMARKET COM 651587107 7,201 2,283 4 0.0014
2026-03-26 2023-09-30 13F/A-1 NEWMARKET COM 651587107 4,918 -3,837 -43.83 2,238 -36.45 0.0014
2023-11-07 2023-09-30 13F NEWMARKET COM 651587107 4,918 -3,837 2 0.0014
2026-03-30 2023-06-30 13F/A-2 NEWMARKET COM 651587107 8,755 2,953 50.90 3,521 66.27 0.0022
2023-09-20 2023-06-30 13F/A-1 NEWMARKET COM 651587107 8,755 2,953 4 0.0022
2023-08-03 2023-06-30 13F NEWMARKET COM 651587107 8,755 2,953 4 0.0022
2026-03-30 2023-03-31 13F/A-1 NEWMARKET COM 651587107 5,802 3,224 125.06 2,118 163.97 0.0010
2023-05-04 2023-03-31 13F NEWMARKET COM 651587107 5,802 3,224 2 0.0010
2026-03-30 2022-12-31 13F/A-1 NEWMARKET COM 651587107 2,578 381 17.34 802 21.52 0.0004
2023-02-13 2022-12-31 13F NEWMARKET COM 651587107 2,578 381 1 0.0004
2022-11-03 2022-09-30 13F NEWMARKET COM 651587107 2,197 -658 -23.05 660 -23.17 0.0007
2022-08-12 2022-06-30 13F NEWMARKET COM 651587107 2,855 524 22.48 859 13.62 0.0005
2022-05-16 2022-03-31 13F NEWMARKET COM 651587107 2,331 -1,285 -35.54 756 -39.03 0.0006
2022-02-23 2021-12-31 13F/A-1 NEWMARKET COM 651587107 3,616 -2,543 -41.29 1,240 -40.56 0.0005
2022-02-14 2021-12-31 13F NEWMARKET COM 651587107 3,616 -2,543 1,240 0.0005
2021-11-09 2021-09-30 13F NEWMARKET COM 651587107 6,159 -716 -10.41 2,086 -5.78 0.0009
2021-08-13 2021-06-30 13F NEWMARKET COM 651587107 6,875 1,487 27.60 2,214 8.00 0.0010
2021-05-13 2021-03-31 13F NEWMARKET COM 651587107 5,388 3,292 157.06 2,050 145.80 0.0011
2021-02-11 2020-12-31 13F NEWMARKET COM 651587107 2,096 -585 -21.82 834 -9.15 0.0004
2020-11-12 2020-09-30 13F NEWMARKET COM 651587107 2,681 -7,874 -74.60 918 -78.28 0.0005
2020-08-12 2020-06-30 13F NEWMARKET COM 651587107 10,555 -4,120 -28.07 4,227 -24.76 0.0033
2020-05-13 2020-03-31 13F NEWMARKET COM 651587107 14,675 -5,550 -27.44 5,618 -42.90 0.0044
2020-02-10 2019-12-31 13F NEWMARKET COM 651587107 20,225 4,159 25.89 9,839 29.73 0.0055
2019-11-15 2019-09-30 13F/A-1 NEWMARKET COM 651587107 16,066 6,880 74.90 7,584 105.92 0.0047
2019-11-14 2019-09-30 13F NEWMARKET COM 651587107 16,066 6,880 7,584 1,753.4294
2019-08-14 2019-06-30 13F NEWMARKET COM 651587107 9,186 4,007 77.37 3,683 64.13 0.0023
2019-05-15 2019-03-31 13F NEWMARKET COM 651587107 5,179 141 2.80 2,244 8.09 0.0015
2019-02-14 2018-12-31 13F NEWMARKET COM 651587107 5,038 -3,322 -39.74 2,076 -38.76 0.0016
2018-11-14 2018-09-30 13F NEWMARKET COM 651587107 8,360 2,294 37.82 3,390 38.14 0.0023
2018-08-14 2018-06-30 13F NEWMARKET COM 651587107 6,066 -622 -9.30 2,454 -8.64 0.0021
2018-05-15 2018-03-31 13F NEWMARKET COM 651587107 6,688 -2,067 -23.61 2,686 -22.79 0.0021
2018-02-14 2017-12-31 13F NEWMARKET COM 651587107 8,755 1,391 18.89 3,479 10.97 0.0028
2017-11-14 2017-09-30 13F NEWMARKET COM 651587107 7,364 -2,776 -27.38 3,135 -32.87 0.0032
2017-08-14 2017-06-30 13F NEWMARKET COM 651587107 10,140 1,308 14.81 4,670 16.66 0.0050
2017-05-15 2017-03-31 13F NEWMARKET COM 651587107 8,832 760 9.42 4,003 17.01 0.0044
2017-02-14 2016-12-31 13F NEWMARKET COM 651587107 8,072 436 5.71 3,421 4.36 0.0037
2016-11-14 2016-09-30 13F NEWMARKET COM 651587107 7,636 330 4.52 3,278 8.33 0.0036
2016-08-12 2016-06-30 13F NEWMARKET COM 651587107 7,306 -1,005 -12.09 3,026 -8.05 0.0039
2016-05-16 2016-03-31 13F NEWMARKET COM 651587107 8,311 851 11.41 3,291 16.13 0.0050
2016-02-12 2015-12-31 13F NEWMARKET COM 651587107 7,460 775 11.59 2,834 18.73 0.0034
2015-11-13 2015-09-30 13F NEWMARKET COM 651587107 6,685 6,372 2,035.78 2,387 1,629.71 0.0029
2015-08-14 2015-06-30 13F NEWMARKET COM 651587107 313 -251 -44.50 138 -48.70 0.0002
2015-05-19 2015-03-31 13F/A-1 NEWMARKET COM 651587107 564 -457 -44.76 269 -34.55 0.0003
2015-05-14 2015-03-31 13F NEWMARKET COM 651587107 564 269
2015-02-13 2014-12-31 13F NEWMARKET COM 651587107 1,021 -8,258 -89.00 411 -88.37 0.0004
2014-11-14 2014-09-30 13F NEWMARKET COM 651587107 9,279 4,655 100.67 3,535 94.87 0.0034
2014-08-14 2014-06-30 13F NEWMARKET COM 651587107 4,624 4,127 830.38 1,814 835.05 0.0019
2014-05-15 2014-03-31 13F NEWMARKET COM 651587107 497 -1,871 -79.01 194 -75.44 0.0002
2014-02-13 2013-12-31 13F NEWMARKET COM 651587107 2,368 1,329 127.91 790 165.10 0.0008
2013-11-14 2013-09-30 13F NEWMARKET COM 651587107 1,039 -6,153 -85.55 298 -84.22 0.0004
2013-08-14 2013-06-30 13F NEWMARKET COM 651587107 7,192 7,192 1,888 0.0023
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-02-10 2019-12-31 13F NEWMARKET OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-15 2019-09-30 13F/A NEWMARKET OPT Call 200 -50.00 94 -41.25 n/a n/a n/a
2019-11-14 2019-09-30 13F NEWMARKET OPT Call 200 94 n/a n/a n/a
2019-08-14 2019-06-30 13F NEWMARKET OPT Call 400 100.00 160 83.91 n/a n/a n/a
2019-05-15 2019-03-31 13F NEWMARKET OPT Call 200 0.00 87 6.10 n/a n/a n/a
2019-02-14 2018-12-31 13F NEWMARKET OPT Call 200 -86.67 82 -86.51 n/a n/a n/a
2018-11-14 2018-09-30 13F NEWMARKET OPT Call 1,500 15.38 608 15.59 n/a n/a n/a
2018-08-14 2018-06-30 13F NEWMARKET OPT Call 1,300 1,200.00 526 1,215.00 n/a n/a n/a
2018-05-15 2018-03-31 13F NEWMARKET OPT Call 100 -92.31 40 -92.26 n/a n/a n/a
2018-02-14 2017-12-31 13F NEWMARKET OPT Call 1,300 333.33 517 303.91 n/a n/a n/a
2017-11-14 2017-09-30 13F NEWMARKET OPT Call 300 50.00 128 39.13 n/a n/a n/a
2017-08-14 2017-06-30 13F NEWMARKET OPT Call 200 0.00 92 1.10 n/a n/a n/a
2017-05-15 2017-03-31 13F NEWMARKET OPT Call 200 -81.82 91 -80.47 n/a n/a n/a
2017-02-14 2016-12-31 13F NEWMARKET OPT Call 1,100 175.00 466 170.93 n/a n/a n/a
2016-11-14 2016-09-30 13F NEWMARKET OPT Call 400 100.00 172 107.23 n/a n/a n/a
2016-08-12 2016-06-30 13F NEWMARKET OPT Call 200 -60.00 83 -58.08 n/a n/a n/a
2016-05-16 2016-03-31 13F NEWMARKET OPT Call 500 198 n/a n/a n/a
2016-02-12 2015-12-31 13F NEWMARKET OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-11-13 2015-09-30 13F NEWMARKET OPT Call 200 -77.78 71 -82.21 n/a n/a n/a
2015-08-14 2015-06-30 13F NEWMARKET OPT Call 900 -65.38 399 -67.82 n/a n/a n/a
2015-05-19 2015-03-31 13F/A NEWMARKET OPT Call 2,600 100.00 1,240 136.64 n/a n/a n/a
2015-05-14 2015-03-31 13F NEWMARKET OPT Call 2,600 1,240 n/a n/a n/a
2015-02-13 2014-12-31 13F NEWMARKET OPT Call 1,300 -27.78 524 -23.62 n/a n/a n/a
2014-11-14 2014-09-30 13F NEWMARKET OPT Call 1,800 -30.77 686 -32.68 n/a n/a n/a
2014-08-14 2014-06-30 13F NEWMARKET OPT Call 2,600 -10.34 1,019 -9.90 n/a n/a n/a
2014-05-15 2014-03-31 13F NEWMARKET OPT Call 2,900 3.57 1,131 20.96 n/a n/a n/a
2014-02-13 2013-12-31 13F NEWMARKET OPT Call 2,800 -20.00 935 -6.87 n/a n/a n/a
2013-11-14 2013-09-30 13F NEWMARKET OPT Call 3,500 -46.97 1,004 -42.07 n/a n/a n/a
2013-08-14 2013-06-30 13F NEWMARKET OPT Call 6,600 1,733 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-02-10 2019-12-31 13F NEWMARKET OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-15 2019-09-30 13F/A NEWMARKET OPT Put 100 -80.00 47 -76.50 n/a n/a n/a
2019-11-14 2019-09-30 13F NEWMARKET OPT Put 100 47 n/a n/a n/a
2019-08-14 2019-06-30 13F NEWMARKET OPT Put 500 200 n/a n/a n/a
2018-02-14 2017-12-31 13F NEWMARKET OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-14 2017-09-30 13F NEWMARKET OPT Put 200 85 n/a n/a n/a
2016-11-14 2016-09-30 13F NEWMARKET OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-12 2016-06-30 13F NEWMARKET OPT Put 100 -92.86 41 -92.60 n/a n/a n/a
2016-05-16 2016-03-31 13F NEWMARKET OPT Put 1,400 16.67 554 21.49 n/a n/a n/a
2016-02-12 2015-12-31 13F NEWMARKET OPT Put 1,200 140.00 456 154.75 n/a n/a n/a
2015-11-13 2015-09-30 13F NEWMARKET OPT Put 500 -50.00 179 -59.59 n/a n/a n/a
2015-08-14 2015-06-30 13F NEWMARKET OPT Put 1,000 -83.33 443 -84.52 n/a n/a n/a
2015-05-19 2015-03-31 13F/A NEWMARKET OPT Put 6,000 7.14 2,862 26.81 n/a n/a n/a
2015-05-14 2015-03-31 13F NEWMARKET OPT Put 6,000 2,862 n/a n/a n/a
2015-02-13 2014-12-31 13F NEWMARKET OPT Put 5,600 30.23 2,257 37.79 n/a n/a n/a
2014-11-14 2014-09-30 13F NEWMARKET OPT Put 4,300 258.33 1,638 248.51 n/a n/a n/a
2014-08-14 2014-06-30 13F NEWMARKET OPT Put 1,200 -74.47 470 -74.36 n/a n/a n/a
2014-05-15 2014-03-31 13F NEWMARKET OPT Put 4,700 235.71 1,833 291.67 n/a n/a n/a
2014-02-13 2013-12-31 13F NEWMARKET OPT Put 1,400 -48.15 468 -39.61 n/a n/a n/a
2013-11-14 2013-09-30 13F NEWMARKET OPT Put 2,700 -55.74 775 -51.62 n/a n/a n/a
2013-08-14 2013-06-30 13F NEWMARKET OPT Put 6,100 1,602 n/a n/a n/a
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.