| Period | Weighting | Quarter | ||||||
|---|---|---|---|---|---|---|---|---|
| Company | Longest | Shortest | Min. | Avg. | Max. | First | Latest | ↓ Count |
| SG Americas Securities, LLC | 31 | 9 | 0.00% | 0.01% | 0.08% | Q2 2013 | Q3 2023 | 40 |
| SIMPLEX TRADING, LLC | 36 | 36 | 0.00% | 0.06% | 0.17% | Q4 2014 | Q3 2023 | 36 |
| GROUP ONE TRADING, L.P. | 34 | 34 | 0.03% | 0.18% | 0.51% | Q2 2015 | Q3 2023 | 34 |
| JPMORGAN CHASE & CO | 33 | 33 | 0.00% | 0.01% | 0.07% | Q3 2015 | Q3 2023 | 33 |
| Allianz Asset Management GmbH | 22 | 10 | 0.00% | 0.01% | 0.03% | Q1 2015 | Q3 2023 | 32 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 21 | 21 | 0.00% | 0.00% | 0.00% | Q3 2018 | Q3 2023 | 21 |
| IMC-Chicago, LLC | 11 | 7 | 0.01% | 0.03% | 0.06% | Q4 2018 | Q3 2023 | 18 |
| Timber Hill LLC | 17 | 17 | 0.01% | 0.12% | 0.24% | Q2 2013 | Q2 2017 | 17 |
| SABBY MANAGEMENT, LLC | 7 | 4 | 0.26% | 5.90% | 18.47% | Q2 2013 | Q1 2018 | 15 |
| Citadel Advisors | 13 | 13 | 0.01% | 0.03% | 0.05% | Q2 2013 | Q2 2016 | 13 |
| Gladius Capital Management LP | 4 | 3 | 0.03% | 0.13% | 0.23% | Q2 2019 | Q3 2023 | 11 |
| SevenBridge Financial Group, LLC | 10 | 1 | 0.00% | 1.15% | 6.16% | Q1 2017 | Q4 2019 | 11 |
| Virtu KCG Holdings LLC | 10 | 10 | 0.04% | 0.07% | 0.10% | Q3 2013 | Q4 2015 | 10 |
| Maven Securities LTD | 4 | 3 | 0.01% | 0.07% | 0.20% | Q4 2019 | Q2 2023 | 10 |
| HBK INVESTMENTS L P | 4 | 2 | 0.00% | 0.04% | 0.09% | Q1 2019 | Q1 2022 | 9 |
| CTC LLC | 8 | 8 | 0.01% | 0.02% | 0.02% | Q4 2021 | Q3 2023 | 8 |
| Marathon Trading Investment Management LLC | 4 | 1 | 0.03% | 0.06% | 0.14% | Q4 2014 | Q3 2023 | 7 |
| COMMERZBANK AKTIENGESELLSCHAFT /FI | 5 | 1 | 0.01% | 0.04% | 0.08% | Q2 2013 | Q2 2019 | 6 |
| JANE STREET GROUP, LLC | 6 | 6 | 0.04% | 0.06% | 0.08% | Q2 2022 | Q3 2023 | 6 |
| Catalyst Capital Advisors LLC | 4 | 4 | 0.01% | 0.02% | 0.04% | Q3 2015 | Q2 2016 | 4 |
| Penserra Capital Management LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2017 | Q3 2023 | 4 |
| CIBC WORLD MARKETS CORP | 2 | 1 | 0.02% | 0.10% | 0.21% | Q3 2017 | Q4 2019 | 4 |
| Iguana Healthcare Management, LLC | 2 | 1 | 1.46% | 2.53% | 3.62% | Q4 2013 | Q2 2017 | 4 |
| Atlas Private Wealth Advisors | 3 | 3 | 0.00% | 0.00% | 0.00% | Q1 2021 | Q3 2021 | 3 |
| Elite Wealth Management, Inc. | 3 | 3 | 0.00% | 0.00% | 0.00% | Q3 2012 | Q1 2013 | 3 |
| Fore Capital, LLC | 3 | 3 | 1.90% | 3.35% | 5.79% | Q1 2021 | Q3 2021 | 3 |
| Hudson Bay Capital Management LP | 2 | 1 | 0.01% | 0.35% | 1.02% | Q1 2017 | Q1 2019 | 3 |
| Twin Tree Management, LP | 3 | 3 | 0.02% | 0.06% | 0.09% | Q3 2022 | Q1 2023 | 3 |
| NATIONAL BANK OF CANADA /FI/ | 1 | 1 | 0.08% | 0.15% | 0.23% | Q2 2022 | Q3 2023 | 2 |
| BOOTHBAY FUND MANAGEMENT, LLC | 1 | 1 | 0.15% | 0.16% | 0.17% | Q2 2018 | Q3 2019 | 2 |
| MUFG Securities EMEA plc | 2 | 2 | 3.78% | 3.80% | 3.82% | Q1 2015 | Q2 2015 | 2 |
| TLP GROUP LLC | 2 | 2 | 2.27% | 2.45% | 2.64% | Q2 2019 | Q3 2019 | 2 |
| All Terrain Financial Advisors, LLC | 2 | 2 | 0.02% | 0.03% | 0.03% | Q4 2017 | Q1 2018 | 2 |
| CMT Asset Management Ltd | 2 | 2 | 0.12% | 0.22% | 0.32% | Q2 2017 | Q3 2017 | 2 |
| Claybrook Capital, LLC | 2 | 2 | 0.00% | 0.01% | 0.01% | Q2 2018 | Q3 2018 | 2 |
| Laurion Capital Management LP | 1 | 1 | 0.25% | 0.25% | 0.25% | Q3 2014 | Q3 2014 | 1 |
| KNIGHT CAPITAL GROUP LLC | 1 | 1 | 0.09% | 0.09% | 0.09% | Q2 2013 | Q2 2013 | 1 |
| TWO SIGMA SECURITIES, LLC | 1 | 1 | 0.25% | 0.25% | 0.25% | Q3 2019 | Q3 2019 | 1 |
| SOCIETE GENERALE | 1 | 1 | 0.02% | 0.02% | 0.02% | Q2 2016 | Q2 2016 | 1 |
| Graticule Asia Macro Advisors LLC | 1 | 1 | 0.61% | 0.61% | 0.61% | Q2 2017 | Q2 2017 | 1 |
| PURA VIDA INVESTMENTS, LLC | 1 | 1 | 0.17% | 0.17% | 0.17% | Q4 2021 | Q4 2021 | 1 |
| Worth Venture Partners, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2022 | Q4 2022 | 1 |
| Golden State Wealth Management, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2020 | Q2 2020 | 1 |
| HRT FINANCIAL LP | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2021 | Q4 2021 | 1 |
| Focused Wealth Management, Inc | 1 | 1 | 0.01% | 0.01% | 0.01% | Q2 2018 | Q2 2018 | 1 |
| IBEX WEALTH ADVISORS | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2019 | Q2 2019 | 1 |
| PEAK6 Group LLC | 1 | 1 | 0.07% | 0.07% | 0.07% | Q3 2014 | Q3 2014 | 1 |
| Ghost Tree Capital, LLC | 1 | 1 | 8.43% | 8.43% | 8.43% | Q1 2014 | Q1 2014 | 1 |
| OSAIC HOLDINGS, INC. | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2021 | Q4 2021 | 1 |
| Redmile Group, LLC | 1 | 1 | 1.74% | 1.74% | 1.74% | Q4 2013 | Q4 2013 | 1 |
| ADVENT CAPITAL MANAGEMENT /DE/ | 1 | 1 | 0.00% | 0.00% | 0.00% | Q2 2018 | Q2 2018 | 1 |
| Executive Wealth Management, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2018 | Q4 2018 | 1 |
| MASON CAPITAL MANAGEMENT LLC | 1 | 1 | 4.56% | 4.56% | 4.56% | Q4 2013 | Q4 2013 | 1 |
| BOLTON LP | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2013 | Q4 2013 | 1 |
| Tourbillon Capital Partners, L.P. | 1 | 1 | 1.72% | 1.72% | 1.72% | Q1 2018 | Q1 2018 | 1 |
| GLG INC. | 1 | 1 | 0.50% | 0.50% | 0.50% | Q3 2013 | Q3 2013 | 1 |
| CWM, LLC | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2013 | Q4 2013 | 1 |
| Amundi | 1 | 1 | 0.09% | 0.09% | 0.09% | Q4 2021 | Q4 2021 | 1 |
| Cypress Capital Management LLC (WY) | 1 | 1 | 0.00% | 0.00% | 0.00% | Q4 2014 | Q4 2014 | 1 |
| BOKF, NA | 1 | 1 | 0.01% | 0.01% | 0.01% | Q1 2023 | Q1 2023 | 1 |
| SPHERA FUNDS MANAGEMENT LTD. | 1 | 1 | 2.79% | 2.79% | 2.79% | Q4 2013 | Q4 2013 | 1 |
| CR Intrinsic Investors, LLC | 1 | 1 | 0.22% | 0.22% | 0.22% | Q3 2013 | Q3 2013 | 1 |
| ARDSLEY ADVISORY PARTNERS LP | 1 | 1 | 0.91% | 0.91% | 0.91% | Q2 2018 | Q2 2018 | 1 |
| Sofinnova Investments, Inc. | 1 | 1 | 2.67% | 2.67% | 2.67% | Q3 2021 | Q3 2021 | 1 |
| Capital Wealth Planning, LLC | 1 | 1 | 4.13% | 4.13% | 4.13% | Q2 2017 | Q2 2017 | 1 |
| Del Mar Asset Management, LP | 1 | 1 | 4.92% | 4.92% | 4.92% | Q3 2013 | Q3 2013 | 1 |
| Capital Markets Trading UK LLP | 1 | 1 | 0.07% | 0.07% | 0.07% | Q4 2017 | Q4 2017 | 1 |
This page lists all the filers that currently own MERCK & CO INC or have owned MERCK & CO INC in the past.