Quanterix Corp - QTRX

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
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
VANGUARD GROUP INC History No change 2,677,833 17,031 0.0% 0.0% 1 0 0.0% Q4 2025 Jan 29, 2026
AMERIPRISE FINANCIAL INC History Reduced 3,542,374 12,469 0.0% 0.01% 2 -1,453,699 -29.1% Q1 2026 May 15, 2026
BlackRock, Inc. History Reduced 3,277,595 11,537 0.0% 0.0% 3 -98,315 -2.91% Q1 2026 May 13, 2026
Portolan Capital Management, LLC History Reduced 2,945,823 10,369 0.55% 1.54% 4 -1,579,730 -34.91% Q1 2026 May 15, 2026
Blue Water Life Science Advisors, LP History Added to 2,142,147 7,540 6.05% 8.35% 5 +50,000 2.39% Q1 2026 May 14, 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC History Added to 2,083,699 7,334 0.02% 0.04% 6 +37,250 1.82% Q1 2026 May 08, 2026
Invenomic Capital Management LP History Added to 1,932,386 6,801 0.31% 0.45% 7 +427,178 28.38% Q1 2026 May 15, 2026
VANGUARD CAPITAL MANAGEMENT LLC History New 1,784,613 6,281 0.0% 8 +1,784,613 New Q1 2026 May 15, 2026
LEVIN CAPITAL STRATEGIES, L.P. History New 1,464,052 5,153 0.39% 9 +1,464,052 New Q1 2026 May 13, 2026
First Eagle Investment Management, LLC History Added to 1,300,087 4,576 0.01% 0.01% 10 +768,660 144.64% Q1 2026 May 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 994,764 3,502 0.0% 0.0% 11 -79,203 -7.37% Q1 2026 May 15, 2026
Trium Capital LLP History Added to 994,217 3,499 2.46% 4.03% 12 +176,766 21.62% Q1 2026 Apr 16, 2026
STATE STREET CORP History Added to 898,277 3,161 0.0% 0.0% 13 +4,876 0.55% Q1 2026 May 15, 2026
Empire Financial Management Company, LLC History Added to 736,068 2,590 0.59% 0.85% 14 +118,238 19.14% Q1 2026 May 15, 2026
MILLENNIUM MANAGEMENT LLC History Added to 689,167 2,425 0.0% 0.0% 15 +286,536 71.17% Q1 2026 May 15, 2026
ENVESTNET ASSET MANAGEMENT INC History Added to 682,711 2,403 0.0% 0.0% 16 +430,500 170.69% Q1 2026 May 04, 2026
Russell Investments Group, Ltd. History Added to 641,981 2,259 0.0% 0.0% 17 +385,841 150.64% Q1 2026 May 08, 2026
MARSHALL WACE, LLP History Added to 622,380 2,190 0.0% 0.0% 18 +467,211 301.1% Q1 2026 May 14, 2026
Williams Jones Wealth Management, LLC. History Reduced 613,439 2,159 0.03% 0.05% 19 -25,500 -3.99% Q1 2026 May 05, 2026
MORGAN STANLEY History Reduced 607,856 2,139 0.0% 0.0% 20 -215,142 -26.14% Q1 2026 May 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History New 576,600 2,029 0.0% 21 +576,600 New Q1 2026 May 08, 2026
Tikvah Management LLC History No change 571,619 2,012 0.62% 0.97% 22 0 0.0% Q1 2026 May 14, 2026
Topline Capital Management, LLC History New 563,135 1,982 0.33% 23 +563,135 New Q1 2026 May 15, 2026
Pier Capital, LLC History New 492,368 1,733 0.29% 24 +492,368 New Q1 2026 May 14, 2026
DIMENSIONAL FUND ADVISORS LP History Added to 443,118 1,559 0.0% 0.0% 25 +53,652 13.78% Q1 2026 May 07, 2026
UBS Group AG History Added to 376,982 1,326 0.0% 0.0% 26 +65,483 21.02% Q1 2026 May 05, 2026
NORTHERN TRUST CORP History Added to 349,658 1,230 0.0% 0.0% 27 +4,094 1.18% Q1 2026 May 14, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 345,913 1,217 0.0% 0.0% 28 -16,827 -4.64% Q1 2026 May 15, 2026
Parkman Healthcare Partners LLC History Added to 341,453 1,201 0.12% 0.2% 29 +12,497 3.8% Q1 2026 May 15, 2026
TUDOR INVESTMENT CORP ET AL History Added to 316,001 1,112 0.0% 0.0% 30 +146,306 86.22% Q1 2026 May 15, 2026
VANGUARD FIDUCIARY TRUST CO History New 270,529 952 0.0% 31 +270,529 New Q1 2026 May 08, 2026
GOLDMAN SACHS GROUP INC History Added to 270,187 951 0.0% 0.0% 32 +21,945 8.84% Q1 2026 May 15, 2026
ROYAL BANK OF CANADA History Added to 232,101 817 0.0% 0.0% 33 +131,100 129.8% Q1 2026 May 15, 2026
FMR LLC History Added to 183,356 645 0.0% 0.0% 34 +23,449 14.66% Q1 2026 May 15, 2026
IRONWOOD INVESTMENT MANAGEMENT LLC History Reduced 169,825 597 0.25% 0.46% 35 -2,505 -1.45% Q1 2026 May 15, 2026
TWO SIGMA ADVISERS, LP History No change 86,890 552 0.0% 0.0% 36 0 0.0% Q4 2025 Feb 17, 2026
JANE STREET GROUP, LLC History Added to 155,655 547 0.0% 0.0% 37 +86,272 124.34% Q1 2026 May 12, 2026
RENAISSANCE TECHNOLOGIES LLC History Added to 136,207 479 0.0% 0.0% 38 +124,407 1054.3% Q1 2026 May 14, 2026
BNP PARIBAS FINANCIAL MARKETS History Reduced 134,403 473 0.0% 0.0% 39 -34,027 -20.2% Q1 2026 May 12, 2026
WELLS FARGO & COMPANY/MN History Reduced 129,024 454 0.0% 0.0% 40 -33,662 -20.69% Q1 2026 May 11, 2026
Bank of New York Mellon Corp History Added to 126,363 444 0.0% 0.0% 41 +2,842 2.3% Q1 2026 May 05, 2026
Clearstead Advisors, LLC History Added to 124,120 436 0.0% 42 +124,115 2482300.0% Q1 2026 May 06, 2026
SCS Capital Management LLC History No change 120,035 422 0.0% 0.01% 43 0 0.0% Q1 2026 May 11, 2026
Invesco Ltd. History Added to 116,216 409 0.0% 0.0% 44 +3,016 2.66% Q1 2026 May 12, 2026
Clarius Group, LLC History No change 62,060 394 0.02% 0.02% 45 0 0.0% Q4 2025 Jan 14, 2026
XTX Topco Ltd History Added to 111,660 393 0.01% 0.01% 46 +37,567 50.7% Q1 2026 May 15, 2026
AMERICAN CENTURY COMPANIES INC History Reduced 101,810 358 0.0% 0.0% 47 -1,398 -1.35% Q1 2026 May 15, 2026
GSA CAPITAL PARTNERS LLP History Reduced 95,528 336 0.02% 0.07% 48 -25,997 -21.39% Q1 2026 May 08, 2026
Point72 Asset Management, L.P. History New 93,253 328 0.0% 49 +93,253 New Q1 2026 May 15, 2026
CITADEL ADVISORS LLC History Reduced 87,601 308 0.0% 0.0% 50 -10,971 -11.13% Q1 2026 May 15, 2026
Brevan Howard Capital Management LP History Added to 87,386 307 0.0% 0.0% 51 +70,586 420.15% Q1 2026 May 15, 2026
STATE OF WISCONSIN INVESTMENT BOARD History Reduced 84,124 296 0.0% 0.0% 52 -63,700 -43.09% Q1 2026 May 15, 2026
AQR CAPITAL MANAGEMENT LLC History Added to 84,132 296 0.0% 0.0% 53 +18,610 28.4% Q1 2026 May 15, 2026
ALLIANCEBERNSTEIN L.P. History No change 44,480 282 0.0% 0.0% 54 0 0.0% Q1 2026 May 15, 2026
Dynamic Technology Lab Private Ltd History New 77,871 274 0.04% 55 +77,871 New Q1 2026 May 15, 2026
HRT FINANCIAL LP History Added to 71,686 252 0.0% 0.0% 56 +58,668 450.67% Q1 2026 May 14, 2026
Nuveen, LLC History Added to 71,842 252 0.0% 0.0% 57 +387 0.54% Q1 2026 Apr 30, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 68,372 241 0.0% 0.0% 58 +24,594 56.18% Q1 2026 May 15, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Added to 68,226 240 0.0% 0.01% 59 +25,226 58.67% Q1 2026 May 15, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 66,019 232 0.0% 0.0% 60 -37,619 -36.3% Q1 2026 May 15, 2026
RHUMBLINE ADVISERS History Reduced 52,065 183 0.0% 0.0% 61 -3,049 -5.53% Q1 2026 May 12, 2026
PEDDOCK CAPITAL ADVISORS, LLC History No change 52,105 183 0.04% 0.07% 62 0 0.0% Q1 2026 Apr 15, 2026
BANK OF AMERICA CORP /DE/ History Added to 49,552 174 0.0% 0.0% 63 +7,005 16.46% Q1 2026 May 15, 2026
Quantinno Capital Management LP History Reduced 47,594 167 0.0% 0.0% 65 -16,197 -25.39% Q1 2026 May 15, 2026
PDT Partners, LLC History No change 47,668 167 0.01% 0.02% 64 0 0.0% Q1 2026 May 15, 2026
Schonfeld Strategic Advisors LLC History Reduced 42,786 150 0.0% 0.0% 66 -18,936 -30.68% Q1 2026 May 15, 2026
FOX RUN MANAGEMENT, L.L.C. History New 39,592 135 0.02% 67 +39,592 New Q1 2026 May 12, 2026
DEUTSCHE BANK AG\ History Added to 35,460 124 0.0% 0.0% 68 +5,554 18.57% Q1 2026 May 06, 2026
TWO SIGMA INVESTMENTS, LP History Reduced 35,185 123 0.0% 0.0% 69 -223,673 -86.41% Q1 2026 May 15, 2026
Jump Financial, LLC History Reduced 28,430 100 0.0% 0.01% 70 -115,665 -80.27% Q1 2026 May 14, 2026
LPL Financial LLC History Added to 25,681 90 0.0% 0.0% 71 +804 3.23% Q1 2026 May 06, 2026
AXQ CAPITAL, LP History Added to 24,354 85 0.01% 0.02% 72 +13,345 121.22% Q1 2026 May 13, 2026
Engineers Gate Manager LP History New 23,800 83 0.0% 73 +23,800 New Q1 2026 May 15, 2026
OSAIC HOLDINGS, INC. History Reduced 22,816 80 0.0% 0.0% 74 -405 -1.74% Q1 2026 May 15, 2026
MetLife Investment Management, LLC History Added to 22,576 79 0.0% 0.0% 75 +6,609 41.39% Q1 2026 May 14, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Reduced 19,580 68 0.0% 0.0% 76 -896 -4.38% Q1 2026 May 15, 2026
Virtu Financial LLC History Reduced 18,988 67 0.0% 0.01% 77 -1,638 -7.94% Q1 2026 May 14, 2026
Vanguard Global Advisers, LLC History New 18,525 65 0.0% 78 +18,525 New Q1 2026 May 08, 2026
Allspring Global Investments Holdings, LLC History Added to 17,216 60 0.0% 0.0% 79 +1,656 10.64% Q1 2026 May 05, 2026
JPMORGAN CHASE & CO History Reduced 17,411 59 0.0% 0.0% 80 -96,610 -84.73% Q1 2026 May 13, 2026
BARCLAYS PLC History Reduced 16,746 58 0.0% 0.0% 81 -103,457 -86.07% Q1 2026 May 14, 2026
HUB Investment Partners, LLC History No change 13,661 48 0.0% 0.0% 82 0 0.0% Q1 2026 May 15, 2026
Post Resch Tallon Group Inc. History Added to 12,500 44 0.04% 0.06% 83 +925 7.99% Q1 2026 Apr 08, 2026
INTECH INVESTMENT MANAGEMENT LLC History Reduced 11,666 41 0.0% 0.0% 84 -7,399 -38.81% Q1 2026 May 08, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History Reduced 11,412 40 0.0% 0.0% 85 -2,716 -19.22% Q1 2026 May 15, 2026
MERCER GLOBAL ADVISORS INC /ADV History New 10,875 38 0.0% 86 +10,875 New Q1 2026 May 15, 2026
Police & Firemen's Retirement System of New Jersey History No change 10,062 35 0.0% 0.0% 87 0 0.0% Q1 2026 Apr 29, 2026
CWM, LLC History Added to 7,626 26 0.0% 0.0% 88 +5,674 290.68% Q1 2026 May 14, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 6,501 22 0.0% 0.0% 89 0 0.0% Q1 2026 May 06, 2026
Tower Research Capital LLC (TRC) History Added to 3,987 14 0.0% 0.0% 91 +2,367 146.11% Q1 2026 May 15, 2026
Legal & General Group Plc History No change 3,993 14 0.0% 0.0% 90 0 0.0% Q1 2026 May 08, 2026
Ameritas Investment Partners, Inc. History No change 3,475 12 0.0% 0.0% 92 0 0.0% Q1 2026 May 13, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 2,389 8 0.0% 0.0% 93 -329 -12.1% Q1 2026 May 15, 2026
CITIGROUP INC History Reduced 1,962 6 0.0% 0.0% 94 -110,418 -98.25% Q1 2026 May 11, 2026
Pinnacle Wealth Planning Services, Inc. History New 1,799 6 0.0% 96 +1,799 New Q1 2026 May 11, 2026
Essential Partners LLC History New 1,717 6 0.0% 97 +1,717 New Q1 2026 May 21, 2026
Versant Capital Management, Inc History Added to 1,832 6 0.0% 0.0% 95 +54 3.04% Q1 2026 Apr 06, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Added to 1,573 5 0.0% 0.0% 98 +404 34.56% Q1 2026 May 08, 2026
Sterling Capital Management LLC History Reduced 1,275 4 0.0% 0.0% 99 -1,048 -45.11% Q1 2026 Apr 22, 2026
GROUP ONE TRADING LLC History New 872 3 0.0% 100 +872 New Q1 2026 May 13, 2026
NATIONAL BANK OF CANADA /FI/ History Added to 627 2 0.0% 103 +542 637.65% Q1 2026 May 14, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History Added to 771 2 0.0% 0.0% 101 +300 63.69% Q1 2026 May 13, 2026
GAMMA Investing LLC History Added to 690 2 0.0% 0.0% 105 +119 20.84% Q1 2026 Apr 06, 2026
Wilmington Savings Fund Society, FSB History No change 800 2 0.0% 0.0% 102 0 0.0% Q1 2026 Apr 30, 2026
AlphaQuest LLC History No change 336 2 0.0% 0.0% 104 0 0.0% Q4 2025 Feb 09, 2026
US BANCORP \DE\ History Reduced 526 1 0.0% 0.0% 106 -5,831 -91.73% Q1 2026 May 14, 2026
NBC SECURITIES, INC. History Added to 414 1 0.0% 0.0% 108 +235 131.28% Q1 2026 Apr 14, 2026
Optiver Holding B.V. History Added to 445 1 0.0% 0.0% 111 +100 28.99% Q1 2026 May 15, 2026
SIT INVESTMENT ASSOCIATES INC History No change 272 1 0.0% 0.0% 107 0 0.0% Q1 2026 May 13, 2026
SIGNATUREFD, LLC History No change 387 1 0.0% 0.0% 109 0 0.0% Q1 2026 Apr 07, 2026
Pinnacle Bancorp, Inc. History No change 520 1 0.0% 0.0% 110 0 0.0% Q1 2026 Apr 22, 2026
EASTERLY INVESTMENT PARTNERS LLC History Closed out 0 0 0.24% -616,681 -100.0% Q1 2026 May 11, 2026
Aberdeen Group plc History Closed out 0 0 0.0% -104,039 -100.0% Q1 2026 Apr 29, 2026
Mount Lucas Management LP History Closed out 0 0 0.14% -56,500 -100.0% Q1 2026 May 05, 2026
Susquehanna Portfolio Strategies, LLC History Closed out 0 0 0.01% -55,150 -100.0% Q1 2026 May 15, 2026
D. E. Shaw & Co., Inc. History Closed out 0 0 0.0% -45,627 -100.0% Q1 2026 May 15, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History Reduced 228 0 0.0% -34,750 -99.35% Q1 2026 May 08, 2026
Numerai GP LLC History Closed out 0 0 0.02% -29,762 -100.0% Q1 2026 May 15, 2026
PEAK6 LLC History Closed out 0 0 0.0% -26,400 -100.0% Q1 2026 May 13, 2026
PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE History Closed out 0 0 0.33% -25,000 -100.0% Q1 2026 May 14, 2026
ExodusPoint Capital Management, LP History Closed out 0 0 0.0% -24,080 -100.0% Q1 2026 May 14, 2026
Quadrature Capital Ltd History Closed out 0 0 0.0% -21,707 -100.0% Q1 2026 May 15, 2026
Vanguard Personalized Indexing Management, LLC History Closed out 0 0 0.0% -13,172 -100.0% Q1 2026 May 14, 2026
Jain Global LLC History Closed out 0 0 0.0% -12,677 -100.0% Q1 2026 May 15, 2026
COMMONWEALTH EQUITY SERVICES, LLC History Closed out 0 0 0.0% -11,238 -100.0% Q1 2026 Apr 27, 2026
DekaBank Deutsche Girozentrale History Closed out 0 0 0.0% -4,566 -100.0% Q1 2026 May 07, 2026
Farther Finance Advisors, LLC History Closed out 0 0 0.0% -4,078 -100.0% Q1 2026 Apr 07, 2026
Caitong International Asset Management Co., Ltd History Closed out 0 0 0.0% -1,526 -100.0% Q1 2026 May 11, 2026
AMALGAMATED BANK History Closed out 0 0 0.0% -1,387 -100.0% Q1 2026 May 08, 2026
Rockefeller Capital Management L.P. History Reduced 248 0 0.0% -1,265 -83.61% Q1 2026 May 14, 2026
NewEdge Advisors, LLC History Closed out 0 0 0.0% -1,100 -100.0% Q1 2026 May 15, 2026
QUADRANT CAPITAL GROUP LLC History Closed out 0 0 0.0% -961 -100.0% Q1 2026 May 13, 2026
Transamerica Financial Advisors, LLC History Reduced 39 0 0.0% -524 -93.07% Q1 2026 May 15, 2026
Parallel Advisors, LLC History New 270 0 +270 New Q1 2026 May 07, 2026
EverSource Wealth Advisors, LLC History Reduced 55 0 0.0% -168 -75.34% Q1 2026 May 15, 2026
Arax Advisory Partners History Closed out 0 0 -154 -100.0% Q1 2026 May 13, 2026
Fortitude Family Office, LLC History New 106 0 +106 New Q1 2026 Apr 15, 2026
Concord Wealth Partners History Closed out 0 0 -100 -100.0% Q1 2026 May 01, 2026
Rialto Wealth Management, LLC History Closed out 0 0 -96 -100.0% Q1 2026 May 14, 2026
Allworth Financial LP History Added to 111 0 +55 98.21% Q1 2026 May 14, 2026
HUNTINGTON NATIONAL BANK History Added to 39 0 +38 3800.0% Q1 2026 May 15, 2026
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO History New 13 0 +13 New Q1 2026 May 07, 2026
Advisory Services Network, LLC History New 9 0 +9 New Q1 2026 May 15, 2026
ROTHSCHILD INVESTMENT LLC History Added to 21 0 +8 61.54% Q1 2026 May 07, 2026
SJS Investment Consulting Inc. History New 7 0 +7 New Q1 2026 Apr 23, 2026
JONES FINANCIAL COMPANIES LLLP History No change 73 0 0 0.0% Q1 2026 May 15, 2026
STRS OHIO History No change 29 0 0 0.0% Q1 2026 Apr 24, 2026
North Star Investment Management Corp. History No change 100 0 0 0.0% Q1 2026 Apr 23, 2026
Cypress Capital Management LLC (WY) History No change 60 0 0 0.0% Q1 2026 May 08, 2026
IFP Advisors, Inc History No change 8 0 0 0.0% Q1 2026 Apr 13, 2026
SBI Securities Co., Ltd. History No change 62 0 0 0.0% Q1 2026 Apr 27, 2026
Covestor Ltd History No change 10 0 0 0.0% Q1 2026 May 05, 2026
True Wealth Design, LLC History No change 151 0 0 0.0% Q1 2026 Apr 13, 2026