New Positions
22 managers initiated
Top five by reported value
Quanterix Corp NASDAQ NMS - GLOBAL MARKET:QTRX
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
22 new41 added70 reduced16 exited
Total Institutional Holders
133
as of 2025-12-31
Top Holder
AMERIPRISE FINANCIAL INC
$31.8M
Largest QoQ Increase
Blue Water Life Science Advisors, LP
+1,134,400 sh
Largest QoQ Decrease
Kent Lake PR LLC
-1,001,000 sh
New Positions(22)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| First Eagle Investment Management, LLC | 531,427 | +531,427 | $3.4M | +$3.4M | — |
| TUDOR INVESTMENT CORP ET AL | 169,695 | +169,695 | $1.1M | +$1.1M | — |
| D. E. Shaw & Co., Inc. | 45,627 | +45,627 | $290.2K | +$290.2K | — |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 34,978 | +34,978 | $174.9K | +$174.9K | — |
| PEAK6 LLC | 26,400 | +26,400 | $167.9K | +$167.9K | — |
| LPL Financial LLC | 24,877 | +24,877 | $158.2K | +$158.2K | — |
| ExodusPoint Capital Management, LP | 24,080 | +24,080 | $153.1K | +$153.1K | — |
| Quadrature Capital Ltd | 21,707 | +21,707 | $138.1K | +$138.1K | — |
| RENAISSANCE TECHNOLOGIES LLC | 11,800 | +11,800 | $75.0K | +$75.0K | — |
| AXQ CAPITAL, LP | 11,009 | +11,009 | $70.0K | +$70.0K | — |
| Caitong International Asset Management Co., Ltd | 4,224 | +4,224 | $26.9K | +$26.9K | — |
| Farther Finance Advisors, LLC | 4,078 | +4,078 | $25.9K | +$25.9K | — |
| QUADRANT CAPITAL GROUP LLC | 961 | +961 | $6.1K | +$6.1K | — |
| UBS ASSET MANAGEMENT AMERICAS INC | 471 | +471 | $3.0K | +$3.0K | — |
| SIGNATUREFD, LLC | 387 | +387 | $2.5K | +$2.5K | — |
| GSA CAPITAL PARTNERS LLP | 121,525 | +121,525 | $773 | +$773 | — |
| NATIONAL BANK OF CANADA /FI/ | 85 | +85 | $541 | +$541 | — |
| Allworth Financial LP | 56 | +56 | $357 | +$357 | — |
| Virtu Financial LLC | 20,626 | +20,626 | $131 | +$131 | — |
| IFP Advisors, Inc | 20 | +20 | $116 | +$116 | — |
| ROTHSCHILD INVESTMENT LLC | 13 | +13 | $83 | +$83 | — |
| HRT FINANCIAL LP | 13,018 | +13,018 | $82 | +$82 | — |
Added To(41)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| AMERIPRISE FINANCIAL INC | 4,996,073 | +752,561 | $31.8M | +$8.7M | 17.7% |
| Blue Water Life Science Advisors, LP | 2,092,147 | +1,134,400 | $13.3M | +$8.1M | 118.4% |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 2,046,449 | +731,169 | $13.0M | +$5.9M | 55.6% |
| Portolan Capital Management, LLC | 4,525,553 | +265,702 | $28.8M | +$5.7M | 6.2% |
| BlackRock, Inc. | 3,375,910 | +262,930 | $21.5M | +$4.6M | 8.4% |
| VANGUARD GROUP INC | 2,677,833 | +30,318 | $17.0M | +$2.7M | 1.1% |
| Invenomic Capital Management LP | 1,505,208 | +112,203 | $9.6M | +$2.0M | 8.1% |
| Empire Financial Management Company, LLC | 617,830 | +165,400 | $3.9M | +$1.5M | 36.5% |
| Trium Capital LLP | 817,451 | +128,854 | $5.2M | +$1.5M | 18.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 1,073,967 | +62,077 | $6.8M | +$1.3M | 6.1% |
| STATE STREET CORP | 893,401 | +73,867 | $5.7M | +$1.2M | 9.0% |
| MORGAN STANLEY | 822,998 | +16,735 | $5.2M | +$856.3K | 2.1% |
| Parkman Healthcare Partners LLC | 328,956 | +76,745 | $2.1M | +$722.7K | 30.4% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 362,740 | +31,494 | $2.3M | +$508.4K | 9.5% |
| XTX Topco Ltd | 74,093 | +62,783 | $471.2K | +$409.8K | 555.1% |
| FMR LLC | 159,907 | +42,774 | $1.0M | +$381.0K | 36.5% |
| TWO SIGMA INVESTMENTS, LP | 258,858 | +8,784 | $1.6M | +$288.4K | 3.5% |
| Jump Financial, LLC | 144,095 | +25,743 | $916.4K | +$273.8K | 21.8% |
| Quantinno Capital Management LP | 63,791 | +36,281 | $405.7K | +$256.3K | 131.9% |
| BNP PARIBAS ARBITRAGE, SNC | 168,430 | +18,103 | $1.1M | +$254.9K | 12.0% |
| WELLS FARGO & COMPANY/MN | 162,686 | +18,368 | $1.0M | +$251.0K | 12.7% |
| Invesco Ltd. | 113,200 | +14,508 | $720.0K | +$184.1K | 14.7% |
| BARCLAYS PLC | 78,980 | +11,711 | $525.2K | +$159.9K | 17.4% |
| Bank of New York Mellon Corp | 123,521 | +5,983 | $785.6K | +$147.4K | 5.1% |
| AMERICAN CENTURY COMPANIES INC | 103,208 | +5,611 | $656.4K | +$126.5K | 5.7% |
| CITADEL ADVISORS LLC | 98,572 | +4,791 | $626.9K | +$117.7K | 5.1% |
| US BANCORP \DE\ | 6,357 | +6,318 | $40.4K | +$40.2K | 16200.0% |
| DEUTSCHE BANK AG\ | 29,906 | +1,817 | $190.2K | +$37.7K | 6.5% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 20,476 | +1,367 | $130.2K | +$26.5K | 7.2% |
| Allspring Global Investments Holdings, LLC | 15,560 | +1,457 | $100.1K | +$23.5K | 10.3% |
| TCG Advisory Services, LLC | 13,661 | +1,500 | $86.9K | +$20.9K | 12.3% |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 14,128 | +327 | $89.9K | +$14.9K | 2.4% |
| Vanguard Personalized Indexing Management, LLC | 13,172 | +164 | $83.8K | +$13.1K | 1.3% |
| Legal & General Group Plc | 3,993 | +686 | $25.4K | +$7.4K | 20.7% |
| Versant Capital Management, Inc | 1,778 | +357 | $11.3K | +$3.6K | 25.1% |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 2,718 | +180 | $17.3K | +$3.5K | 7.1% |
| GAMMA Investing LLC | 571 | +402 | $3.6K | +$2.7K | 237.9% |
| PNC Financial Services Group, Inc. | 1,169 | +235 | $7.4K | +$2.4K | 25.2% |
| EverSource Wealth Advisors, LLC | 223 | +86 | $1.4K | +$674 | 62.8% |
| CWM, LLC | 1,952 | +658 | $12 | +$5 | 50.9% |
| AMALGAMATED BANK | 1,387 | +198 | $9 | +$3 | 16.6% |
Reduced(70)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC | 402,631 | -806,568 | $2.6M | -$4.0M | -66.7% |
| EASTERLY INVESTMENT PARTNERS LLC | 616,681 | -635,503 | $3.9M | -$2.9M | -50.8% |
| abrdn plc | 104,039 | -460,542 | $661.7K | -$2.4M | -81.6% |
| MARSHALL WACE, LLP | 155,169 | -453,539 | $986.9K | -$2.3M | -74.5% |
| Royal Bank of Canada | 101,001 | -291,438 | $642.0K | -$1.9M | -74.3% |
| DIMENSIONAL FUND ADVISORS LP | 389,466 | -317,605 | $2.5M | -$1.4M | -44.9% |
| ENVESTNET ASSET MANAGEMENT INC | 252,211 | -263,650 | $1.6M | -$1.2M | -51.1% |
| Russell Investments Group, Ltd. | 256,140 | -177,920 | $1.6M | -$727.9K | -41.0% |
| Tikvah Management LLC | 571,619 | 0 | $3.6M | +$531.6K | 0.0% |
| JPMORGAN CHASE & CO | 114,021 | -113,750 | $725.2K | -$511.6K | -49.9% |
| CITIGROUP INC | 112,380 | -106,198 | $714.7K | -$472.1K | -48.6% |
| AQR CAPITAL MANAGEMENT LLC | 65,522 | -92,453 | $416.7K | -$441.1K | -58.5% |
| PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE | 25,000 | -75,671 | $159.0K | -$387.6K | -75.2% |
| JANE STREET GROUP, LLC | 69,383 | -80,396 | $441.3K | -$372.0K | -53.7% |
| Schonfeld Strategic Advisors LLC | 61,722 | -74,853 | $392.6K | -$349.1K | -54.8% |
| Williams Jones Wealth Management, LLC. | 638,939 | -47,525 | $4.1M | +$336.2K | -6.9% |
| Numerai GP LLC | 29,762 | -58,302 | $189.3K | -$288.9K | -66.2% |
| NORTHERN TRUST CORP | 345,564 | -8,094 | $2.2M | +$277.4K | -2.3% |
| TWO SIGMA ADVISERS, LP | 86,890 | -55,300 | $552.6K | -$219.5K | -38.9% |
| BANK OF AMERICA CORP /DE/ | 42,547 | -45,819 | $270.6K | -$209.2K | -51.9% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 103,638 | -52,131 | $659.1K | -$186.7K | -33.5% |
| Susquehanna Portfolio Strategies, LLC | 55,150 | -42,519 | $350.8K | -$179.6K | -43.5% |
| STATE OF WISCONSIN INVESTMENT BOARD | 147,824 | -47,935 | $940.2K | -$122.8K | -24.5% |
| SCS Capital Management LLC | 120,035 | 0 | $763.4K | +$111.6K | 0.0% |
| COMMONWEALTH EQUITY SERVICES, LLC | 11,238 | -6,227 | $71.5K | +$71.4K | -35.6% |
| GOLDMAN SACHS GROUP INC | 248,242 | -29,833 | $1.6M | +$68.9K | -10.7% |
| Nuveen, LLC | 71,455 | 0 | $454.5K | +$66.5K | 0.0% |
| Clarius Group, LLC | 62,060 | 0 | $394.7K | +$57.7K | 0.0% |
| PEDDOCK CAPITAL ADVISORS, LLC | 52,105 | 0 | $331.4K | +$48.5K | 0.0% |
| UBS Group AG | 311,499 | -62,101 | $2.0M | -$47.5K | -16.6% |
| PDT Partners, LLC | 47,668 | 0 | $303.2K | +$44.3K | 0.0% |
| IRONWOOD INVESTMENT MANAGEMENT LLC | 172,330 | -21,744 | $1.1M | +$42.2K | -11.2% |
| ALLIANCEBERNSTEIN L.P. | 44,480 | 0 | $282.9K | +$41.4K | 0.0% |
| RHUMBLINE ADVISERS | 55,114 | -1,943 | $350.5K | +$40.7K | -3.4% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 43,000 | 0 | $273.5K | +$40.0K | 0.0% |
| ADVISOR GROUP HOLDINGS, INC. | 23,221 | -1,515 | $147.7K | +$34.8K | -6.1% |
| Mount Lucas Management LP | 56,500 | -3,500 | $359.3K | +$33.5K | -5.8% |
| MetLife Investment Management, LLC | 15,967 | -6,975 | $101.5K | -$23.0K | -30.4% |
| Brevan Howard Capital Management LP | 16,800 | -6,444 | $106.8K | -$19.4K | -27.7% |
| INTECH INVESTMENT MANAGEMENT LLC | 19,065 | -96 | $121.3K | +$17.2K | -0.5% |
| Jain Global LLC | 12,677 | -4,700 | $80.6K | -$13.7K | -27.0% |
| Police & Firemen's Retirement System of New Jersey | 10,062 | 0 | $64.0K | +$9.4K | 0.0% |
| Post Resch Tallon Group Inc. | 11,575 | -500 | $73.6K | +$8.1K | -4.1% |
| Tower Research Capital LLC (TRC) | 1,620 | -1,408 | $10.3K | -$6.1K | -46.5% |
| NEW YORK STATE COMMON RETIREMENT FUND | 6,501 | 0 | $41.3K | +$6.0K | 0.0% |
| Rockefeller Capital Management L.P. | 1,513 | -950 | $9.6K | -$3.8K | -38.6% |
| Ameritas Investment Partners, Inc. | 3,475 | 0 | $22.1K | +$3.2K | 0.0% |
| Optiver Holding B.V. | 345 | -384 | $2.2K | -$1.8K | -52.7% |
| SRS Capital Advisors, Inc. | 154 | -265 | $979 | -$1.3K | -63.2% |
| NewEdge Advisors, LLC | 1,100 | 0 | $7.0K | +$1.0K | 0.0% |
| Sterling Capital Management LLC | 2,323 | -256 | $14.8K | +$770 | -9.9% |
| BRYN MAWR TRUST Co | 800 | 0 | $5.1K | +$744 | 0.0% |
| Clearstead Advisors, LLC | 5 | -127 | $32 | -$685 | -96.2% |
| Transamerica Financial Advisors, Inc. | 563 | 0 | $3.6K | +$524 | 0.0% |
| Pinnacle Bancorp, Inc. | 520 | 0 | $3.3K | +$483 | 0.0% |
| NBC SECURITIES, INC. | 179 | -102 | $1.1K | -$387 | -36.3% |
| AlphaQuest LLC | 336 | 0 | $2.1K | +$313 | 0.0% |
| True Wealth Design, LLC | 151 | 0 | $961 | +$141 | 0.0% |
| North Star Investment Management Corp. | 100 | 0 | $636 | +$93 | 0.0% |
| Concord Wealth Partners | 100 | 0 | $636 | +$93 | 0.0% |
| Rialto Wealth Management, LLC | 96 | 0 | $611 | +$89 | 0.0% |
| JONES FINANCIAL COMPANIES LLLP | 73 | 0 | $464 | +$85 | 0.0% |
| SBI Securities Co., Ltd. | 62 | 0 | $394 | +$57 | 0.0% |
| Cypress Capital Management LLC (WY) | 60 | 0 | $382 | +$56 | 0.0% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 43,778 | -15,000 | $279 | -$41 | -25.5% |
| STRS OHIO | 29 | 0 | $184 | +$27 | 0.0% |
| SIT INVESTMENT ASSOCIATES INC | 272 | 0 | $2 | +$1 | 0.0% |
| HUNTINGTON NATIONAL BANK | 1 | 0 | $6 | +$1 | 0.0% |
| DekaBank Deutsche Girozentrale | 4,566 | 0 | $80 | +$1 | 0.0% |
| Covestor Ltd | 10 | 0 | $0 | $0 | 0.0% |
Sold Out(16)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Kent Lake PR LLC | 0 | -1,001,000 | $0 | -$5.4M | — |
| Cubist Systematic Strategies, LLC | 0 | -314,418 | $0 | -$1.7M | — |
| PharVision Advisers, LLC | 0 | -36,144 | $0 | -$196.3K | — |
| Atom Investors LP | 0 | -19,571 | $0 | -$106.3K | — |
| PRELUDE CAPITAL MANAGEMENT, LLC | 0 | -15,393 | $0 | -$83.6K | — |
| State of Wyoming | 0 | -14,109 | $0 | -$76.6K | — |
| R Squared Ltd | 0 | -11,771 | $0 | -$63.9K | — |
| KESTRA PRIVATE WEALTH SERVICES, LLC | 0 | -10,294 | $0 | -$55.9K | — |
| HSBC HOLDINGS PLC | 0 | -10,516 | $0 | -$55.8K | — |
| Quantbot Technologies LP | 0 | -8,673 | $0 | -$47.1K | — |
| Quarry LP | 0 | -5,548 | $0 | -$30.1K | — |
| GROUP ONE TRADING, L.P. | 0 | -783 | $0 | -$4.3K | — |
| NISA INVESTMENT ADVISORS, LLC | 0 | -640 | $0 | -$3.5K | — |
| Fortitude Family Office, LLC | 0 | -270 | $0 | -$1.5K | — |
| Point72 (DIFC) Ltd | 0 | -119 | $0 | -$646 | — |
| SIMPLEX TRADING, LLC | 0 | -1,563 | $0 | -$8 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
New & Closed Positions this quarter
Closed Positions
16 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for QTRX against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.