Quanterix Corp - QTRX

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q2 2026 · Compare: Q1 2026
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
PharVision Advisers, LLC History New 13,039 56,328 1.06% — 1 +13,039 New Q2 2026 Aug 11, 2026
BlackRock, Inc. History Added to 3,635,411 15,704 0.0% 0.0% 2 +357,816 10.92% Q2 2026 Aug 07, 2026
Blue Water Life Science Advisors, LP History Added to 3,474,202 15,008 9.45% 6.05% 3 +1,332,055 62.18% Q2 2026 Aug 13, 2026
First Eagle Investment Management, LLC History Added to 2,753,165 11,893 0.02% 0.01% 4 +1,453,078 111.77% Q2 2026 Aug 05, 2026
Portolan Capital Management, LLC History Reduced 1,899,308 8,205 0.31% 0.55% 5 -1,046,515 -35.53% Q2 2026 Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLC History Added to 1,800,644 7,778 0.0% 0.0% 6 +16,031 0.9% Q2 2026 Aug 13, 2026
Lionhunter Capital Management, LLC History New 1,500,427 6,481 2.92% — 7 +1,500,427 New Q2 2026 Aug 13, 2026
AQR CAPITAL MANAGEMENT LLC History Added to 1,343,005 5,801 0.0% 0.0% 8 +1,258,873 1496.31% Q2 2026 Aug 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 1,131,377 4,888 0.0% 0.0% 9 +136,613 13.73% Q2 2026 Aug 12, 2026
AMERIPRISE FINANCIAL INC History Reduced 987,424 4,265 0.0% 0.0% 10 -2,554,950 -72.13% Q2 2026 Aug 14, 2026
MARSHALL WACE, LLP History Added to 973,872 4,207 0.0% 0.0% 11 +351,492 56.48% Q2 2026 Aug 13, 2026
STATE STREET CORP History Added to 932,307 4,027 0.0% 0.0% 12 +34,030 3.79% Q2 2026 Sep 22, 2026
Tikvah Management LLC History Reduced 571,555 2,469 0.75% 0.62% 13 -64 -0.01% Q2 2026 Aug 12, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History Reduced 489,566 2,114 0.0% 0.0% 14 -87,034 -15.09% Q2 2026 Aug 13, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC History New 487,600 2,106 0.01% — 15 +487,600 New Q2 2026 Aug 14, 2026
MORGAN STANLEY History Reduced 447,688 1,934 0.0% 0.0% 16 -160,168 -26.35% Q2 2026 Aug 13, 2026
JANE STREET GROUP, LLC History Added to 433,350 1,872 0.0% 0.0% 17 +277,695 178.4% Q2 2026 Aug 14, 2026
GSA CAPITAL PARTNERS LLP History Added to 410,252 1,772 0.11% 0.02% 18 +314,724 329.46% Q2 2026 Aug 06, 2026
TUDOR INVESTMENT CORP ET AL History Added to 400,402 1,729 0.0% 0.0% 19 +84,401 26.71% Q2 2026 Aug 14, 2026
DIMENSIONAL FUND ADVISORS LP History Reduced 397,833 1,719 0.0% 0.0% 20 -45,285 -10.22% Q2 2026 Aug 11, 2026
NORTHERN TRUST CORP History Reduced 337,227 1,456 0.0% 0.0% 21 -12,431 -3.56% Q2 2026 Aug 13, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 310,701 1,342 0.0% 0.0% 22 -35,212 -10.18% Q2 2026 Aug 14, 2026
VANGUARD FIDUCIARY TRUST CO History Added to 288,311 1,245 0.0% 0.0% 23 +17,782 6.57% Q2 2026 Aug 13, 2026
UBS Group AG History Reduced 281,978 1,218 0.0% 0.0% 24 -95,004 -25.2% Q2 2026 Aug 13, 2026
BALYASNY ASSET MANAGEMENT L.P. History New 260,000 1,123 0.0% — 25 +260,000 New Q2 2026 Aug 14, 2026
Nuveen, LLC History Added to 232,592 1,004 0.0% 0.0% 26 +160,750 223.75% Q2 2026 Aug 11, 2026
CITADEL ADVISORS LLC History Added to 229,736 992 0.0% 0.0% 27 +142,135 162.25% Q2 2026 Sep 02, 2026
XTX Topco Ltd History Added to 228,035 985 0.01% 0.01% 28 +116,375 104.22% Q2 2026 Aug 14, 2026
Point72 Asset Management, L.P. History Added to 225,653 974 0.0% 0.0% 29 +132,400 141.98% Q2 2026 Aug 14, 2026
GOLDMAN SACHS GROUP INC History Reduced 212,056 916 0.0% 0.0% 30 -58,131 -21.52% Q2 2026 Aug 14, 2026
FMR LLC History Added to 210,634 909 0.0% 0.0% 31 +27,278 14.88% Q2 2026 Aug 13, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 190,420 822 0.0% 0.0% 32 +124,401 188.43% Q2 2026 Aug 14, 2026
IRONWOOD INVESTMENT MANAGEMENT LLC History Added to 170,555 736 0.25% 0.25% 33 +730 0.43% Q2 2026 Aug 14, 2026
Invesco Ltd. History Added to 160,887 695 0.0% 0.0% 34 +44,671 38.44% Q2 2026 Aug 14, 2026
WELLS FARGO & COMPANY/MN History Added to 149,158 644 0.0% 0.0% 35 +20,134 15.6% Q2 2026 Aug 14, 2026
Susquehanna Portfolio Strategies, LLC History New 148,618 642 0.01% — 36 +148,618 New Q2 2026 Aug 14, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 136,876 591 0.0% 0.0% 37 +2,473 1.84% Q2 2026 Aug 13, 2026
Bank of New York Mellon Corp History Added to 131,900 569 0.0% 0.0% 38 +5,537 4.38% Q2 2026 Aug 06, 2026
SCS Capital Management LLC History No change 120,035 518 0.0% 0.0% 39 0 0.0% Q2 2026 Aug 06, 2026
AMERICAN CENTURY COMPANIES INC History Reduced 100,463 434 0.0% 0.0% 40 -1,347 -1.32% Q2 2026 Aug 12, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 95,626 414 0.0% 0.0% 41 +27,254 39.86% Q2 2026 Aug 14, 2026
Quadrature Capital Ltd History New 80,200 346 0.0% — 42 +80,200 New Q2 2026 Aug 06, 2026
Cerity Partners LLC History New 78,083 337 0.0% — 43 +78,083 New Q2 2026 Aug 14, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History No change 68,226 294 0.01% 0.0% 44 0 0.0% Q2 2026 Aug 14, 2026
Clearstead Advisors, LLC History Reduced 62,261 268 0.0% 0.0% 45 -61,859 -49.84% Q2 2026 Aug 06, 2026
Jain Global LLC History New 57,319 247 0.0% — 46 +57,319 New Q2 2026 Aug 14, 2026
ALGERT GLOBAL LLC History New 55,217 238 0.0% — 47 +55,217 New Q2 2026 Aug 13, 2026
RHUMBLINE ADVISERS History Added to 53,557 231 0.0% 0.0% 48 +1,492 2.87% Q2 2026 Aug 11, 2026
PEDDOCK CAPITAL ADVISORS, LLC History No change 52,105 225 0.04% 0.04% 49 0 0.0% Q2 2026 Jul 22, 2026
ALLIANCEBERNSTEIN L.P. History Added to 56,780 199 0.0% 0.0% 50 +12,300 27.65% Q2 2026 Aug 14, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 40,662 175 0.0% 0.0% 51 -648,505 -94.1% Q2 2026 Aug 14, 2026
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC History New 38,961 168 0.0% — 52 +38,961 New Q2 2026 Aug 14, 2026
CANADA PENSION PLAN INVESTMENT BOARD History New 38,100 164 0.0% — 53 +38,100 New Q2 2026 Aug 14, 2026
Russell Investments Group, Ltd. History Reduced 37,722 162 0.0% 0.0% 54 -604,259 -94.12% Q2 2026 Aug 06, 2026
DEUTSCHE BANK AG\ History Added to 36,678 158 0.0% 0.0% 55 +1,218 3.43% Q2 2026 Aug 07, 2026
IEQ CAPITAL, LLC History New 35,507 153 0.0% — 56 +35,507 New Q2 2026 Aug 11, 2026
BANK OF AMERICA CORP /DE/ History Reduced 29,286 126 0.0% 0.0% 57 -20,266 -40.9% Q2 2026 Aug 14, 2026
MERCER GLOBAL ADVISORS INC /ADV History Added to 25,731 111 0.0% 0.0% 58 +14,856 136.61% Q2 2026 Aug 19, 2026
AXQ CAPITAL, LP History Added to 25,599 110 0.01% 0.01% 59 +1,245 5.11% Q2 2026 Aug 06, 2026
MetLife Investment Management, LLC History Added to 24,801 107 0.0% 0.0% 60 +2,225 9.86% Q2 2026 Aug 13, 2026
AIGEN INVESTMENT MANAGEMENT, LP History New 24,328 105 0.03% — 61 +24,328 New Q2 2026 Aug 14, 2026
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC History New 26,914 104 0.0% — 62 +26,914 New Q2 2026 Jul 15, 2026
OSAIC HOLDINGS, INC. History Added to 24,176 104 0.0% 0.0% 63 +1,360 5.96% Q2 2026 Aug 14, 2026
Dynamic Technology Lab Private Ltd History Reduced 20,816 90 0.02% 0.04% 64 -57,055 -73.27% Q2 2026 Aug 13, 2026
LPL Financial LLC History Reduced 20,099 86 0.0% 0.0% 66 -5,582 -21.74% Q2 2026 Aug 07, 2026
JPMORGAN CHASE & CO History Added to 19,049 86 0.0% 0.0% 65 +1,638 9.41% Q2 2026 Aug 12, 2026
CITIGROUP INC History Added to 19,713 85 0.0% 0.0% 67 +17,751 904.74% Q2 2026 Aug 03, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 19,655 84 0.0% 0.0% 68 +75 0.38% Q2 2026 Aug 14, 2026
Creative Planning History New 18,538 80 0.0% — 69 +18,538 New Q2 2026 Aug 13, 2026
Vanguard Global Advisers, LLC History No change 18,525 80 0.0% 0.0% 70 0 0.0% Q2 2026 Aug 13, 2026
D. E. Shaw & Co., Inc. History New 17,672 76 0.0% — 71 +17,672 New Q2 2026 Aug 14, 2026
NISA INVESTMENT ADVISORS, LLC History New 17,356 74 0.0% — 72 +17,356 New Q2 2026 Aug 10, 2026
BARCLAYS PLC History Reduced 15,805 68 0.0% 0.0% 73 -941 -5.62% Q2 2026 Aug 14, 2026
HUB Investment Partners, LLC History Added to 15,734 67 0.0% 0.0% 74 +2,073 15.17% Q2 2026 Jul 31, 2026
Mariner, LLC History New 15,471 66 0.0% — 75 +15,471 New Q2 2026 Aug 13, 2026
Jump Financial, LLC History Reduced 14,700 63 0.0% 0.0% 77 -13,730 -48.29% Q2 2026 Aug 13, 2026
Engineers Gate Manager LP History Reduced 14,807 63 0.0% 0.0% 76 -8,993 -37.79% Q2 2026 Aug 14, 2026
CAPTRUST FINANCIAL ADVISORS History New 14,301 61 0.0% — 78 +14,301 New Q2 2026 Aug 13, 2026
HighTower Advisors, LLC History New 13,660 59 0.0% — 80 +13,660 New Q2 2026 Aug 05, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History Added to 13,788 59 0.0% 0.0% 79 +2,376 20.82% Q2 2026 Sep 09, 2026
Vanguard Personalized Indexing Management, LLC History New 13,239 57 0.0% — 81 +13,239 New Q2 2026 Aug 11, 2026
Schonfeld Strategic Advisors LLC History Reduced 12,663 54 0.0% 0.0% 82 -30,123 -70.4% Q2 2026 Aug 14, 2026
Post Resch Tallon Group Inc. History No change 12,500 54 0.04% 0.04% 83 0 0.0% Q2 2026 Jul 07, 2026
Qube Research & Technologies Ltd History New 11,987 51 0.0% — 84 +11,987 New Q2 2026 Aug 14, 2026
KESTRA PRIVATE WEALTH SERVICES, LLC History New 11,294 48 0.0% — 85 +11,294 New Q2 2026 Jul 28, 2026
IMC-Chicago, LLC History New 10,214 44 0.0% — 86 +10,214 New Q2 2026 Aug 06, 2026
Cresset Asset Management, LLC History New 10,000 43 0.0% — 87 +10,000 New Q2 2026 Aug 14, 2026
Police & Firemen's Retirement System of New Jersey History No change 10,062 43 0.0% 0.0% 88 0 0.0% Q2 2026 Jul 23, 2026
Arax Advisory Partners History New 7,558 32 0.0% — 89 +7,558 New Q2 2026 Aug 10, 2026
SIMPLEX TRADING, LLC History New 7,127 30 0.0% — 91 +7,127 New Q2 2026 Aug 12, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Added to 7,123 30 0.0% 0.0% 90 +5,550 352.83% Q2 2026 Aug 07, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 6,501 28 0.0% 0.0% 92 0 0.0% Q2 2026 Jul 29, 2026
Legal & General Group Plc History No change 3,993 17 0.0% 0.0% 93 0 0.0% Q2 2026 Aug 14, 2026
Ameritas Investment Partners, Inc. History No change 3,475 15 0.0% 0.0% 94 0 0.0% Q2 2026 Aug 13, 2026
Tower Research Capital LLC (TRC) History Reduced 3,108 13 0.0% 0.0% 95 -879 -22.05% Q2 2026 Aug 11, 2026
Sachetta, LLC History New 3,000 12 0.01% — 96 +3,000 New Q2 2026 Jul 15, 2026
Allworth Financial LP History Added to 2,143 9 0.0% — 97 +2,032 1830.63% Q2 2026 Aug 11, 2026
GROUP ONE TRADING LLC History Added to 1,933 8 0.0% 0.0% 98 +1,061 121.67% Q2 2026 Aug 13, 2026
ROYAL BANK OF CANADA History Reduced 1,475 7 0.0% 0.0% 99 -230,626 -99.36% Q2 2026 Aug 14, 2026
Pinnacle Wealth Planning Services, Inc. History No change 1,799 7 0.0% 0.0% 100 0 0.0% Q2 2026 Aug 07, 2026
EverSource Wealth Advisors, LLC History Added to 1,503 6 0.0% — 101 +1,448 2632.73% Q2 2026 Jul 24, 2026
True Wealth Design, LLC History Added to 1,068 4 0.0% — 103 +917 607.28% Q2 2026 Jul 16, 2026
NewEdge Advisors, LLC History No change 1,000 4 0.0% 0.0% 102 0 0.0% Q2 2026 Aug 12, 2026
Sterling Capital Management LLC History Reduced 860 3 0.0% 0.0% 106 -415 -32.55% Q2 2026 Jul 28, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History No change 771 3 0.0% 0.0% 104 0 0.0% Q2 2026 Aug 13, 2026
Wilmington Savings Fund Society, FSB History No change 800 3 0.0% 0.0% 105 0 0.0% Q2 2026 Jul 28, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 585 2 0.0% 0.0% 107 -1,804 -75.51% Q2 2026 Aug 24, 2026
Essential Partners LLC History Reduced 640 2 0.0% 0.0% 110 -1,077 -62.73% Q2 2026 Aug 10, 2026
MassMutual Private Wealth & Trust, FSB History New 600 2 0.0% — 108 +600 New Q2 2026 Jul 02, 2026
Pinnacle Bancorp, Inc. History No change 520 2 0.0% 0.0% 109 0 0.0% Q2 2026 Jul 28, 2026
GAMMA Investing LLC History Reduced 299 1 0.0% 0.0% 113 -391 -56.67% Q2 2026 Jul 07, 2026
Farther Finance Advisors, LLC History New 249 1 0.0% — 112 +249 New Q2 2026 Jul 17, 2026
SIT INVESTMENT ASSOCIATES INC History No change 272 1 0.0% 0.0% 111 0 0.0% Q2 2026 Aug 12, 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC History Closed out 0 0 — 0.02% — -2,083,699 -100.0% Q2 2026 Aug 11, 2026
Invenomic Capital Management LP History Closed out 0 0 — 0.31% — -1,932,386 -100.0% Q2 2026 Aug 14, 2026
LEVIN CAPITAL STRATEGIES, L.P. History Closed out 0 0 — 0.39% — -1,464,052 -100.0% Q2 2026 Jul 31, 2026
Trium Capital LLP History Closed out 0 0 — 2.46% — -994,217 -100.0% Q2 2026 Jul 16, 2026
Empire Financial Management Company, LLC History Closed out 0 0 — 0.59% — -736,068 -100.0% Q2 2026 Aug 14, 2026
ENVESTNET ASSET MANAGEMENT INC History Closed out 0 0 — 0.0% — -682,711 -100.0% Q2 2026 Sep 23, 2026
Williams Jones Wealth Management, LLC. History Closed out 0 0 — 0.03% — -613,439 -100.0% Q2 2026 Aug 05, 2026
Topline Capital Management, LLC History Closed out 0 0 — 0.33% — -563,135 -100.0% Q2 2026 Aug 14, 2026
Pier Capital, LLC History Closed out 0 0 — 0.29% — -492,368 -100.0% Q2 2026 Aug 05, 2026
Parkman Healthcare Partners LLC History Closed out 0 0 — 0.12% — -341,453 -100.0% Q2 2026 Aug 14, 2026
RENAISSANCE TECHNOLOGIES LLC History Closed out 0 0 — 0.0% — -136,207 -100.0% Q2 2026 Aug 13, 2026
Brevan Howard Capital Management LP History Closed out 0 0 — 0.0% — -87,386 -100.0% Q2 2026 Aug 14, 2026
STATE OF WISCONSIN INVESTMENT BOARD History Closed out 0 0 — 0.0% — -84,124 -100.0% Q2 2026 Aug 14, 2026
HRT FINANCIAL LP History Closed out 0 0 — 0.0% — -71,686 -100.0% Q2 2026 Aug 14, 2026
PDT Partners, LLC History Closed out 0 0 — 0.01% — -47,668 -100.0% Q2 2026 Aug 14, 2026
Quantinno Capital Management LP History Closed out 0 0 — 0.0% — -47,594 -100.0% Q2 2026 Aug 13, 2026
FOX RUN MANAGEMENT, L.L.C. History Closed out 0 0 — 0.02% — -39,592 -100.0% Q2 2026 Aug 04, 2026
TWO SIGMA INVESTMENTS, LP History Closed out 0 0 — 0.0% — -35,185 -100.0% Q2 2026 Aug 14, 2026
Virtu Financial LLC History Closed out 0 0 — 0.0% — -18,988 -100.0% Q2 2026 Aug 13, 2026
Allspring Global Investments Holdings, LLC History Closed out 0 0 — 0.0% — -17,216 -100.0% Q2 2026 Aug 13, 2026
INTECH INVESTMENT MANAGEMENT LLC History Closed out 0 0 — 0.0% — -11,666 -100.0% Q2 2026 Aug 10, 2026
CWM, LLC History Closed out 0 0 — 0.0% — -7,626 -100.0% Q1 2026 May 14, 2026
Versant Capital Management, Inc History Closed out 0 0 — 0.0% — -1,832 -100.0% Q2 2026 Jul 02, 2026
NATIONAL BANK OF CANADA /FI/ History Closed out 0 0 — 0.0% — -627 -100.0% Q2 2026 Aug 10, 2026
LANARK FINANCIAL, INC. History Closed out 0 0 — 0.0% — -414 -100.0% Q2 2026 Jul 21, 2026
SIGNATUREFD, LLC History Closed out 0 0 — 0.0% — -387 -100.0% Q2 2026 Jul 23, 2026
Optiver Holding B.V. History Reduced 101 0 — 0.0% — -344 -77.3% Q2 2026 Aug 12, 2026
US BANCORP \DE\ History Reduced 202 0 — 0.0% — -324 -61.6% Q2 2026 Aug 12, 2026
Parallel Advisors, LLC History Closed out 0 0 — — — -270 -100.0% Q2 2026 Aug 05, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History Closed out 0 0 — — — -228 -100.0% Q2 2026 Aug 13, 2026
Avion Wealth History New 198 0 — — — +198 New Q2 2026 Jul 31, 2026
Physician Wealth Advisors, Inc. History New 198 0 — — — +198 New Q2 2026 Jul 20, 2026
ROTHSCHILD INVESTMENT LLC History Added to 207 0 — — — +186 885.71% Q2 2026 Aug 06, 2026
Bare Financial Services, Inc History New 184 0 — — — +184 New Q2 2026 Jul 27, 2026
Wealth Enhancement Trust Services, Inc. History New 161 0 — — — +161 New Q2 2026 Jul 22, 2026
Bogart Wealth, LLC History New 156 0 — — — +156 New Q2 2026 Jul 24, 2026
Ritter Daniher Financial Advisory LLC / DE History New 150 0 — — — +150 New Q2 2026 Jul 14, 2026
Concord Wealth Partners History New 100 0 — — — +100 New Q2 2026 Jul 27, 2026
Fortitude Family Office, LLC History Added to 201 0 — — — +95 89.62% Q2 2026 Jul 20, 2026
Rockefeller Capital Management L.P. History Reduced 175 0 — — — -73 -29.44% Q2 2026 Aug 13, 2026
SJS Investment Consulting Inc. History Added to 60 0 — — — +53 757.14% Q2 2026 Jul 22, 2026
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO History Closed out 0 0 — — — -13 -100.0% Q2 2026 Aug 12, 2026
Covestor Ltd History Closed out 0 0 — — — -10 -100.0% Q2 2026 Aug 07, 2026
Advisory Services Network, LLC History Closed out 0 0 — — — -9 -100.0% Q2 2026 Aug 12, 2026
IFP Advisors, Inc History Closed out 0 0 — — — -8 -100.0% Q2 2026 Jul 20, 2026
HUNTINGTON NATIONAL BANK History No change 39 0 — — — 0 0.0% Q2 2026 Aug 13, 2026
JONES FINANCIAL COMPANIES LLLP History No change 73 0 — — — 0 0.0% Q2 2026 Aug 14, 2026
STRS OHIO History No change 29 0 — — — 0 0.0% Q2 2026 Jul 30, 2026
North Star Investment Management Corp. History No change 100 0 — — — 0 0.0% Q2 2026 Jul 28, 2026
Transamerica Financial Advisors, LLC History No change 39 0 — — — 0 0.0% Q2 2026 Aug 14, 2026
Cypress Capital Management LLC (WY) History No change 60 0 — — — 0 0.0% Q2 2026 Aug 06, 2026
SBI Securities Co., Ltd. History No change 62 0 — — — 0 0.0% Q2 2026 Jul 22, 2026