Estimated market cap $6.52BShares outstanding from the company’s latest SEC filing (all share classes, each priced at its own close; ADRs converted to ADS) × last close from Tiingo. Updated daily. This figure: shares as of Sep 30, 2026, last close Nov 13, 2026.9.20M shares, shares as of Sep 30, 2026CIK 1282637The SEC’s Central Index Key, the number it uses to identify every company and person that files.
Insider trades, 12 mo
1 buy · 0 sells
$247.7K bought, open market
Congress trades, 24 mo
—
No disclosed trades
13F holders
…
Lobbying, 12 mo
—
No lobbying filings
Federal contracts, 12 mo
—
None matched
Ask your AI:
Latest 10-Q
What changed in NewMarket Corp's latest quarterly report, compared with the one before.
Loading…
Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
Loading…
13F holders
Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Loading…
Top 10 holders.Premium lists every holder, with CSV downloads.
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
Loading…
Lobbying
What NewMarket Corp and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
Loading…
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
13F holders, Q3 2026Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
342
45.0% of shares · 108 added
Latest 10-Q
Q3 2026
What changed in NewMarket Corp's latest quarterly report, compared with the one before.
Filed Oct 29, 2026 · Quarter ended Sep 30, 2026
AI No AI summary for this 10-Q: it is being written; check back soon.
Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: management's discussion, legal proceedings and controls and procedures.
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
No open-market insider trades reported since Feb 24, 2026. Insiders have two business days to file.
Recent insider trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
342 funds report NEU. Values checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Funds own 65% of shares (Q2 2026)Fund managers with more than $100 million in US-listed stocks file a 13F each quarter. It lists their long stock positions only (shorts, options and bonds are left out) and can arrive up to 45 days after the quarter ends, so this is a snapshot of the quarter end. We add up the shares every fund reports in this class and divide by the shares outstanding. The total can pass 100%: the same shares are often reported by more than one manager (an adviser and the fund it runs), lent shares can be reported twice, and the share count can be out of date after buybacks. We divided 6.01M reported shares by 9.20M shares, from the company’s SEC filing as of Jun 30, 2026.
425 funds hold the stock.
Q3 2026: 45% · 5,560 of ~8,900 funds reported so farFunds have 45 days after a quarter ends to file. This quarter’s reports are still arriving, so the figure only counts the funds that have filed so far and will usually rise.
Q2 202565%
Q3 202567%
Q4 202568%
Q1 202663%
Q2 202665%
Q3 2026 (so far)45%
Q3 2026. 60 new, 108 added to, 106 trimmed, 144 exited since Q2 2026.
One of these funds reports its values in thousands of dollars; its figures are shown in dollars.
Download CSVEvery fund that holds NEU, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
Trades by members of Congress
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
Recent congressional trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
What NewMarket Corp and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
No recent lobbying filings for this company.
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
Funds holding the stock
Shares they report
Funds holding the stock by quarter
Q2 2013
228
—
8.35M
$2.2B
Q3 2013
225
-3
8.42M
$2.4B
Q4 2013
228
+3
8.55M
$2.9B
Q1 2014
238
+10
7.82M
$3.1B
Q2 2014
238
0
7.92M
$3.1B
Q3 2014
237
-1
7.41M
$2.8B
Q4 2014
239
+2
7.26M
$2.9B
Q1 2015
234
-5
7.55M
$3.6B
Q2 2015
235
+1
7.48M
$3.3B
Q3 2015
222
-13
7.33M
$2.6B
Q4 2015
229
+7
7.13M
$2.7B
Q1 2016
223
-6
7.03M
$2.8B
Q2 2016
226
+3
7.07M
$2.9B
Q3 2016
233
+7
6.88M
$3.0B
Q4 2016
250
+17
6.79M
$2.9B
Q1 2017
244
-6
6.77M
$3.1B
Q2 2017
252
+8
6.64M
$3.1B
Q3 2017
250
-2
6.99M
$3.0B
Q4 2017
259
+9
6.57M
$2.6B
Q1 2018
261
+2
6.68M
$2.7B
Q2 2018
251
-10
6.59M
$2.7B
Q3 2018
257
+6
6.54M
$2.7B
Q4 2018
246
-11
6.47M
$2.7B
Q1 2019
269
+23
6.21M
$2.7B
Q2 2019
269
0
6.17M
$2.5B
Q3 2019
295
+26
6.14M
$2.9B
Q4 2019
296
+1
6.33M
$3.1B
Q1 2020
269
-27
6.13M
$2.3B
Q2 2020
278
+9
6.12M
$2.5B
Q3 2020
258
-20
6.15M
$2.1B
Q4 2020
267
+9
6.24M
$2.5B
Q1 2021
261
-6
6.12M
$2.3B
Q2 2021
249
-12
6.14M
$2.0B
Q3 2021
247
-2
5.87M
$2.0B
Q4 2021
246
-1
5.70M
$2.0B
Q1 2022
235
-11
5.66M
$1.8B
Q2 2022
217
-18
5.73M
$1.7B
Q3 2022
229
+12
5.83M
$1.8B
Q4 2022
245
+16
5.93M
$1.8B
Q1 2023
263
+18
5.96M
$2.2B
Q2 2023
270
+7
5.92M
$2.4B
Q3 2023
279
+9
6.00M
$2.7B
Q4 2023
307
+28
5.97M
$3.3B
Q1 2024
325
+18
6.12M
$3.9B
Q2 2024
316
-9
6.14M
$3.2B
Q3 2024
321
+5
6.14M
$3.4B
Q4 2024
316
-5
6.09M
$3.2B
Q1 2025
321
+5
6.11M
$3.4B
Q2 2025
360
+39
6.07M
$4.2B
Q3 2025
407
+47
6.29M
$5.2B
Q4 2025
418
+11
6.36M
$4.3B
Q1 2026
387
-31
5.82M
$3.7B
Q2 2026
426
+39
6.01M
$4.8B
Q3 2026
342
-84
4.14M
$3.7B
Each point is a quarter-end, from Q2 2013 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.
Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.
The history follows the company's current CUSIP number (651587107). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2013) can be later than the stock's first appearance in 13F reports.
Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.
A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.