Security record · archived quarter
TMO
Thermo Fisher Scientific Inc. · Healthcare · Medical - Diagnostics & Research
190Tracked holders
+2Δ holders
255.88MShares held
$126.62BReported value
+7New positions
−6Exits
Momentum inputs (comparable managers):
holder breadth +1.1% ·
share flow -2.3% ·
net new positions +0.5%
· formula
Ownership fragmentation: more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 7 | 0 | 3.13M | $2.08B | n/a | n/a |
| Q2 2026 | 191 | +3 | 260.72M | $131.51B | +5 | −1 |
| Q1 2026 | 190 | +2 | 255.88M | $126.62B | +7 | −6 |
| Q4 2025 | 187 | +3 | 274.75M | $159.19B | +4 | n/a |
| Q3 2025 | 29 | -1 | 154.46M | $74.90B | +1 | −3 |
| Q2 2025 | 28 | +3 | 123.95M | $50.25B | +3 | n/a |
| Q1 2025 | 22 | -2 | 60.64M | $30.17B | n/a | −2 |
| Q4 2024 | 24 | +2 | 61.50M | $31.99B | +2 | n/a |
| Q3 2024 | 21 | -2 | 44.46M | $27.48B | n/a | −2 |
| Q2 2024 | 23 | n/a | 44.78M | $24.75B | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 30.43M | -0.8% | $14.96B | 0.3% | ▼ Trim | 4 | SEC ↗ ×22 |
| 2 | Vanguard Capital Management Llc | 24.28M | n/a | $11.93B | 0.3% | n/c | 1 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 16.73M | +0.7% | $8.23B | 0.3% | ▲ Add | 6 | SEC ↗ |
| 4 | Morgan Stanley ✦ | 10.86M | -8.7% | $5.34B | 0.3% | ▼ Trim | 3 | SEC ↗ ×24 |
| 5 | Fidelity (FMR) ✦ | 10.78M | +10.0% | $5.30B | 0.3% | ▲ Add | 4 | SEC ↗ ×7 |
| 6 | Geode Capital Management ✦ (passive) | 8.41M | +2.6% | $4.11B | 0.3% | ▲ Add | 8 | SEC ↗ ×2 |
| 7 | Franklin Resources Inc | 6.81M | +7.3% | $3.35B | 0.8% | ▲ Add | 2 | SEC ↗ ×14 |
| 8 | Capital World Investors ✦ | 6.65M | -39.6% | $3.27B | 0.4% | ▼ Trim | 8 | SEC ↗ |
| 9 | JPMorgan Chase ✦ | 6.80M | +2.8% | $3.26B | 0.2% | ▲ Add | 3 | SEC ↗ ×23 |
| 10 | T. Rowe Price ✦ | 6.32M | -18.0% | $3.10B | 0.4% | ▼ Trim | 8 | SEC ↗ ×2 |
| 11 | Bank Of America Corp /De/ | 5.53M | -6.9% | $2.72B | 0.2% | ▼ Trim | 2 | SEC ↗ ×8 |
| 12 | Massachusetts Financial Services Co… | 3.01M | -2.4% | $2.25B | 0.8% | ▼ Trim | 2 | SEC ↗ ×9 |
| 13 | Capital Research Global Investors | 4.41M | +51.5% | $2.17B | 0.3% | ▲ Add | 2 | SEC ↗ |
| 14 | Royal Bank Of Canada | 3.91M | -3.0% | $1.92B | 0.4% | ▼ Trim | 2 | SEC ↗ ×16 |
| 15 | Capital International Investors | 3.89M | +322.6% | $1.91B | 0.4% | ▲ Add | 2 | SEC ↗ |
| 16 | Bank of New York Mellon Corp | 3.77M | +1.1% | $1.85B | 0.3% | ▲ Add | 2 | SEC ↗ ×29 |
| 17 | Northern Trust Corp | 3.42M | -1.0% | $1.68B | 0.2% | ▼ Trim | 2 | SEC ↗ ×10 |
| 18 | Goldman Sachs Group ✦ | 3.16M | +3.0% | $1.55B | 0.2% | ▲ Add | 3 | SEC ↗ ×6 |
| 19 | Charles Schwab Investment… | 2.93M | +3.2% | $1.44B | 0.2% | ▲ Add | 2 | SEC ↗ |
| 20 | DZ BANK AG Deutsche Zentral… | 2.91M | -17.5% | $1.43B | 1.3% | ▼ Trim | 2 | SEC ↗ ×7 |
| 21 | Fisher Asset Management ✦ | 2.85M | +2.1% | $1.40B | 0.5% | ▲ Add | 8 | SEC ↗ |
| 22 | Alliancebernstein L.P. | 2.19M | -10.6% | $1.27B | 0.4% | ▼ Trim | 2 | SEC ↗ |
| 23 | Grantham, Mayo, Van Otterloo & Co.… | 2.50M | +3.7% | $1.23B | 3.1% | ▲ Add | 2 | SEC ↗ |
| 24 | UBS Group AG | 2.45M | +5.6% | $1.21B | 0.2% | ▲ Add | 2 | SEC ↗ ×10 |
| 25 | UBS AM, a distinct business unit of… | 2.45M | +0.9% | $1.20B | 0.2% | ▲ Add | 2 | SEC ↗ ×11 |
| 26 | Legal & General Group Plc | 2.37M | -2.0% | $1.17B | 0.3% | ▼ Trim | 2 | SEC ↗ ×3 |
| 27 | Invesco Ltd. | 2.24M | +3.4% | $1.10B | 0.1% | ▲ Add | 2 | SEC ↗ ×23 |
| 28 | Pictet Asset Management Holding SA | 2.06M | -16.3% | $1.01B | 1.1% | ▼ Trim | 2 | SEC ↗ |
| 29 | Amundi | 2.02M | +22.4% | $991.05M | 0.3% | ▲ Add | 2 | SEC ↗ ×9 |
| 30 | PRIMECAP Management ✦ | 1.98M | -3.6% | $974.47M | 0.8% | ▼ Trim | 8 | SEC ↗ |
| 31 | 1832 Asset Management L.P. | 1.97M | +58.3% | $968.13M | 1.3% | ▲ Add | 2 | SEC ↗ |
| 32 | Mitsubishi UFJ Asset Management… | 1.85M | -11.2% | $910.92M | 0.6% | ▼ Trim | 2 | SEC ↗ |
| 33 | Barclays Plc | 1.84M | +10.4% | $906.42M | 0.3% | ▲ Add | 2 | SEC ↗ ×7 |
| 34 | Schroder Investment Management Group | 1.73M | n/a | $849.58M | 0.7% | n/c | 1 | SEC ↗ ×11 |
| 35 | Dimensional Fund Advisors Lp | 1.69M | +2.2% | $830.49M | 0.2% | ▲ Add | 2 | SEC ↗ ×5 |
| 36 | Ameriprise Financial Inc | 1.67M | -0.9% | $821.09M | 0.2% | ▼ Trim | 2 | SEC ↗ ×8 |
| 37 | Viking Global Investors ✦ | 1.67M | +110.3% | $819.88M | 2.3% | ▲ Add | 2 | SEC ↗ |
| 38 | Nuveen, LLC | 1.65M | -23.3% | $809.54M | 0.2% | ▼ Trim | 2 | SEC ↗ ×3 |
| 39 | Clearbridge Investments, LLC | 1.61M | -13.5% | $791.71M | 0.7% | ▼ Trim | 2 | SEC ↗ |
| 40 | Parnassus Investments, Llc | 1.50M | -5.0% | $739.58M | 2.2% | ▼ Trim | 2 | SEC ↗ |
| 41 | Swedbank AB | 1.48M | -11.6% | $727.61M | 0.8% | ▼ Trim | 2 | SEC ↗ ×3 |
| 42 | Wellington Management ✦ | 1.48M | -57.4% | $726.60M | 0.1% | ▼ Trim | 8 | SEC ↗ ×8 |
| 43 | Wells Fargo & Company/Mn | 1.44M | +3.3% | $709.53M | 0.1% | ▲ Add | 2 | SEC ↗ ×5 |
| 44 | Manufacturers Life Insurance… | 1.42M | -6.5% | $699.79M | 0.6% | ▼ Trim | 2 | SEC ↗ |
| 45 | Loomis Sayles & Co L P | 1.36M | -1.1% | $670.33M | 0.9% | ▼ Trim | 2 | SEC ↗ ×2 |
| 46 | Deutsche Bank Ag\ | 1.26M | +1.0% | $619.50M | 0.2% | ▲ Add | 2 | SEC ↗ ×18 |
| 47 | Lazard Asset Management Llc | 1.22M | -1.0% | $600.68M | 1.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 48 | Focus Partners Wealth | 1.14M | +20.8% | $560.83M | 0.6% | ▲ Add | 2 | SEC ↗ |
| 49 | Swiss National Bank | 1.10M | +6.6% | $541.98M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 50 | Sumitomo Mitsui Trust Group, Inc. | 1.08M | -1.5% | $530.13M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 51 | Neuberger Berman Group LLC | 885.57K | -1.6% | $435.28M | 0.3% | ▼ Trim | 2 | SEC ↗ ×2 |
| 52 | Citadel Advisors ✦ | 864.49K | +25.2% | $424.92M | 0.3% | ▲ Add | 8 | SEC ↗ ×2 |
| 53 | Corient Private Wealth LP | 832.07K | -46.8% | $417.39M | 0.6% | ▼ Trim | 2 | SEC ↗ ×2 |
| 54 | National Pension Service | 829.65K | +2.1% | $407.80M | 0.3% | ▲ Add | 2 | SEC ↗ |
| 55 | Raymond James Financial Inc | 775.32K | +1.9% | $381.08M | 0.1% | ▲ Add | 2 | SEC ↗ ×5 |
| 56 | First Manhattan Co. Llc. | 767.16K | -0.2% | $377.41M | 1.0% | ▼ Trim | 2 | SEC ↗ |
| 57 | Hsbc Holdings Plc | 718.95K | -55.5% | $353.14M | 0.2% | ▼ Trim | 2 | SEC ↗ ×17 |
| 58 | Baillie Gifford ✦ | 698.44K | -9.4% | $343.30M | 0.4% | ▼ Trim | 8 | SEC ↗ ×4 |
| 59 | California Public Employees… | 696.59K | -4.2% | $342.39M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 60 | Bnp Paribas Financial Markets | 665.13K | +13.2% | $326.93M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 61 | Janus Henderson Group Plc | 660.26K | -39.8% | $324.56M | 0.2% | ▼ Trim | 2 | SEC ↗ ×3 |
| 62 | Stifel Financial Corp | 649.15K | -4.7% | $319.11M | 0.3% | ▼ Trim | 2 | SEC ↗ ×6 |
| 63 | CIBC Bancorp USA Inc. | 645.01K | n/a | $317.15M | 0.4% | n/c | 1 | SEC ↗ ×3 |
| 64 | BNP Paribas Asset Management… | 640.38K | -9.9% | $314.74M | 0.4% | ▼ Trim | 2 | SEC ↗ ×4 |
| 65 | Ninety One UK Ltd | 637.26K | -28.6% | $313.23M | 0.7% | ▼ Trim | 2 | SEC ↗ |
| 66 | Robeco Institutional Asset… | 634.64K | -23.2% | $311.94M | 0.4% | ▼ Trim | 2 | SEC ↗ |
| 67 | Arrowstreet Capital ✦ | 634.37K | -26.9% | $311.81M | 0.2% | ▼ Trim | 8 | SEC ↗ |
| 68 | Victory Capital Management Inc | 627.70K | -19.1% | $308.56M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 69 | Principal Financial Group Inc | 624.72K | -2.6% | $307.07M | 0.2% | ▼ Trim | 2 | SEC ↗ ×3 |
| 70 | Envestnet Asset Management Inc | 613.39K | +18.3% | $301.50M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 71 | Rhumbline Advisers | 611.95K | -0.1% | $300.79M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 72 | Bank Of Montreal /Can/ | 579.04K | +4.8% | $284.62M | 0.1% | ▲ Add | 2 | SEC ↗ ×9 |
| 73 | Citigroup Inc | 572.18K | +6.6% | $281.24M | 0.2% | ▲ Add | 2 | SEC ↗ ×4 |
| 74 | California State Teachers… | 571.81K | -2.7% | $281.06M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 75 | Canada Pension Plan Investment Board | 562.42K | +42.4% | $276.45M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 76 | Balyasny Asset Management L.P. | 555.47K | +6431.9% | $273.03M | 0.6% | ▲ Add | 2 | SEC ↗ |
| 77 | Adage Capital Partners ✦ | 545.83K | -3.2% | $268.29M | 0.4% | ▼ Trim | 8 | SEC ↗ |
| 78 | FIL Ltd | 531.87K | +0.6% | $261.43M | 0.2% | ▲ Add | 2 | SEC ↗ ×2 |
| 79 | Ensign Peak Advisors, Inc | 516.57K | -31.1% | $253.91M | 0.5% | ▼ Trim | 2 | SEC ↗ |
| 80 | Royal London Asset Management Ltd | 508.54K | -6.0% | $249.96M | 0.5% | ▼ Trim | 2 | SEC ↗ |
| 81 | Jones Financial Companies Lllp | 506.04K | +214.8% | $240.15M | 0.1% | ▲ Add | 2 | SEC ↗ ×2 |
| 82 | Td Asset Management Inc | 479.86K | -31.2% | $235.86M | 0.2% | ▼ Trim | 2 | SEC ↗ ×2 |
| 83 | Marshall Wace ✦ | 477.25K | -50.0% | $234.58M | 0.3% | ▼ Trim | 4 | SEC ↗ ×2 |
| 84 | New York State Common Retirement… | 432.24K | 0.0% | $212.46M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 85 | Rockefeller Capital Management L.P. | 427.33K | +1.0% | $210.05M | 0.4% | ▲ Add | 2 | SEC ↗ ×7 |
| 86 | Fifth Third Bancorp | 418.26K | +27.2% | $205.59M | 0.4% | ▲ Add | 2 | SEC ↗ |
| 87 | Allianz Asset Management GmbH | 418.11K | -20.6% | $205.51M | 0.2% | ▼ Trim | 2 | SEC ↗ ×6 |
| 88 | Aberdeen Group plc | 418.06K | +8.9% | $205.49M | 0.3% | ▲ Add | 2 | SEC ↗ ×3 |
| 89 | American Century Companies Inc | 414.39K | +11.3% | $203.69M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 90 | Aviva Plc | 384.00K | -5.5% | $188.75M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 91 | Nomura Asset Management… | 354.60K | -8.9% | $174.30M | 0.3% | ▼ Trim | 2 | SEC ↗ ×2 |
| 92 | Point72 Asset Management ✦ | 353.54K | -19.1% | $173.78M | 0.3% | ▼ Trim | 6 | SEC ↗ |
| 93 | Zurcher Kantonalbank (Zurich… | 353.36K | -2.8% | $173.69M | 0.4% | ▼ Trim | 2 | SEC ↗ |
| 94 | Holocene Advisors, LP | 341.27K | +57.6% | $167.74M | 0.4% | ▲ Add | 2 | SEC ↗ |
| 95 | LPL Financial LLC | 337.27K | +1.3% | $165.78M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 96 | State Board Of Administration Of… | 331.55K | -0.8% | $162.97M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 97 | Universal- Beteiligungs- und… | 319.49K | -7.2% | $157.40M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 98 | Nomura Asset Management Co Ltd | 319.97K | +7.3% | $157.28M | 0.4% | ▲ Add | 2 | SEC ↗ ×5 |
| 99 | Credit Agricole S A | 316.83K | -39.9% | $155.73M | 0.5% | ▼ Trim | 2 | SEC ↗ ×9 |
| 100 | Artisan Partners Limited Partnership | 312.82K | +4.0% | $153.76M | 0.3% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Norges Bank | $3.07B | was 0.3% |
| Walleye Trading LLC | $30.24M | was 0.5% |
| Third Point | $28.97M | was 0.4% |
| Peak6 Llc | $4.54M | was 0.1% |
| Parallax Volatility Advisers… | $646,666 | was 0.0% |
| Harris Associates (Oakmark) | $313,482 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 24.30K shares, $11,944 reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 31
Pettiti Gianluca
Officer · 3.73K sh · $2.29M
Aug 31
Pettiti Gianluca
Officer · 400 sh · $245,752
Aug 24
CASPER MARC N
Officer, Director · 62 sh · $38,982
Aug 24
CASPER MARC N
Officer, Director · 33 sh · $20,677
Aug 24
CASPER MARC N
Officer, Director · 101 sh · $63,166
Aug 24
CASPER MARC N
Officer, Director · 79 sh · $49,613
Aug 21
CASPER MARC N
Officer, Director · 2.15K sh · $1.35M
Aug 21
CASPER MARC N
Officer, Director · 1.79K sh · $1.12M
Aug 21
CASPER MARC N
Officer, Director · 3.01K sh · $1.89M
Aug 21
CASPER MARC N
Officer, Director · 2.73K sh · $1.71M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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