Security record
TNDM
Tandem Diabetes Care, Inc. · Healthcare · Medical - Devices
94Tracked holders
-3Δ holders
42.93MShares held
$644.94MReported value
+8New positions
−12Exits
Momentum inputs (comparable managers):
holder breadth -3.1% ·
share flow -8.2% ·
net new positions -4.3%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 94 | -3 | 42.93M | $644.94M | +8 | −12 |
| Q1 2026 | 101 | +1 | 46.93M | $900.01M | +9 | −9 |
| Q4 2025 | 101 | +3 | 51.29M | $1.10B | +5 | −1 |
| Q3 2025 | 16 | -4 | 31.69M | $384.56M | — | −4 |
| Q2 2025 | 17 | +2 | 28.59M | $532.96M | +3 | −1 |
| Q1 2025 | 12 | -2 | 7.22M | $138.30M | — | −2 |
| Q4 2024 | 14 | -1 | 8.91M | $320.82M | — | −1 |
| Q3 2024 | 14 | +1 | 9.24M | $392.07M | +1 | — |
| Q2 2024 | 13 | — | 10.47M | $421.99M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 11.58M | +8.3% | $174.79M | 0.0% | ▲ Add | 5 | SEC ↗ ×14 |
| 2 | Vanguard Capital Management Llc | 3.10M | +1.9% | $46.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 2.85M | +7.1% | $43.03M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 4 | Jennison Associates Llc | 2.33M | +40.6% | $35.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | Geode Capital Management ✦ (passive) | 1.80M | +7.2% | $27.18M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 6 | Citadel Advisors ✦ | 1.74M | -20.8% | $26.19M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 7 | Millennium Management ✦ | 1.31M | +72.2% | $19.79M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 8 | UBS Group AG | 1.15M | -44.0% | $17.30M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 9 | Fidelity (FMR) ✦ | 976.43K | +36.8% | $14.73M | 0.0% | ▲ Add | 5 | SEC ↗ ×6 |
| 10 | Wellington Management ✦ | 871.81K | -16.4% | $13.16M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 11 | Goldman Sachs Group ✦ | 862.30K | -61.1% | $13.01M | 0.0% | ▼ Trim | 4 | SEC ↗ ×3 |
| 12 | Northern Trust Corp | 753.69K | +6.7% | $11.37M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 13 | Qube Research & Technologies Ltd | 683.82K | +1216.0% | $10.32M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | D. E. Shaw & Co. ✦ | 681.81K | -13.0% | $10.29M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 15 | Arrowstreet Capital ✦ | 667.69K | +245.0% | $10.08M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | Charles Schwab Investment… | 656.84K | +2.2% | $9.91M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | Morgan Stanley ✦ | 647.07K | -52.3% | $9.76M | 0.0% | ▼ Trim | 4 | SEC ↗ ×7 |
| 18 | Point72 Asset Management ✦ | 610.90K | +45.3% | $9.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | Bank Of Montreal /Can/ | 564.97K | +1409.2% | $8.53M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 20 | Two Sigma Investments ✦ | 558.41K | -70.0% | $8.43M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 533.84K | +60.8% | $8.06M | 0.0% | ▲ Add | 9 | SEC ↗ ×7 |
| 22 | Aberdeen Group plc | 441.74K | +1.8% | $6.67M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | Bank Of America Corp /De/ | 395.05K | +5.8% | $5.96M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 24 | Bank of New York Mellon Corp | 602.16K | +79.1% | $5.55M | 0.0% | ▲ Add | 3 | SEC ↗ ×7 |
| 25 | JPMorgan Chase ✦ | 349.65K | 0.0% | $5.53M | 0.0% | ▼ Trim | 4 | SEC ↗ ×3 |
| 26 | Tudor Investment Corp Et Al | 362.71K | +359.1% | $5.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 27 | Barclays Plc | 350.43K | -16.8% | $5.29M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 28 | Principal Financial Group Inc | 335.09K | +1.1% | $5.06M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 29 | Invesco Ltd. | 321.13K | +9.2% | $4.85M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 30 | Quantinno Capital Management LP | 306.66K | -53.1% | $4.63M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 31 | First Trust Advisors Lp | 292.84K | -14.6% | $4.42M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 32 | Holocene Advisors, LP | 267.86K | -43.9% | $4.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 33 | Envestnet Asset Management Inc | 235.97K | -3.0% | $3.56M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 34 | Royal Bank Of Canada | 225.17K | +9.3% | $3.40M | 0.0% | ▲ Add | 3 | SEC ↗ ×6 |
| 35 | Squarepoint Ops LLC | 217.39K | New | $3.28M | 0.0% | New | 1 | SEC ↗ |
| 36 | Connor, Clark & Lunn Investment… | 184.07K | New | $2.78M | 0.0% | New | 1 | SEC ↗ ×2 |
| 37 | Rhumbline Advisers | 164.05K | -11.9% | $2.48M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 38 | Nuveen, LLC | 157.07K | -56.8% | $2.37M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 39 | Legal & General Group Plc | 155.75K | +0.3% | $2.35M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 40 | UBS AM, a distinct business unit of… | 151.85K | -9.9% | $2.29M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 41 | Russell Investments Group, Ltd. | 148.58K | +11.2% | $2.24M | 0.0% | ▲ Add | 3 | SEC ↗ ×9 |
| 42 | Voya Investment Management Llc | 142.60K | -82.3% | $2.15M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 43 | Swiss National Bank | 137.50K | +3.1% | $2.07M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | Federated Hermes, Inc. | 123.82K | 0.0% | $1.87M | 0.0% | Held | 3 | SEC ↗ |
| 45 | Raymond James Financial Inc | 122.02K | -2.6% | $1.84M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 46 | Susquehanna International Group, Llp | 117.96K | +46.1% | $1.78M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 47 | Ameriprise Financial Inc | 113.52K | -6.3% | $1.71M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 48 | Alliancebernstein L.P. | 70.05K | -4.2% | $1.34M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | T. Rowe Price ✦ | 88.32K | +28.6% | $1.33M | 0.0% | ▲ Add | 9 | SEC ↗ |
| 50 | Universal- Beteiligungs- und… | 84.90K | -2.8% | $1.28M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 51 | Cerity Partners LLC | 76.12K | -0.1% | $1.15M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 52 | Deutsche Bank Ag\ | 75.16K | +24.0% | $1.13M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 53 | Wells Fargo & Company/Mn | 72.18K | +128.9% | $1.09M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 54 | Hrt Financial Lp | 71.70K | -46.9% | $1.08M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 55 | Jones Financial Companies Lllp | 66.27K | +13.5% | $1.08M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 56 | Prudential Financial Inc | 70.47K | +1.5% | $1.06M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 57 | Stifel Financial Corp | 68.19K | +153.1% | $1.03M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 58 | Bnp Paribas Financial Markets | 63.21K | -69.7% | $953,854 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 59 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 56.40K | +2.2% | $851,016 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Assenagon Asset Management S.A. | 52.86K | -70.4% | $797,658 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 61 | Man Group plc | 50.98K | New | $769,243 | 0.0% | New | 1 | SEC ↗ |
| 62 | Franklin Resources Inc | 49.46K | +176.8% | $746,337 | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 63 | LPL Financial LLC | 42.80K | +45.2% | $645,882 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | State Of Wisconsin Investment Board | 41.47K | -2.6% | $625,828 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 65 | Citigroup Inc | 40.23K | -41.1% | $607,071 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 66 | Mariner, LLC | 36.75K | +11.3% | $554,601 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | State Board Of Administration Of… | 34.63K | +86.7% | $522,537 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Truist Financial Corp | 30.32K | -1.0% | $457,515 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 69 | Zurcher Kantonalbank (Zurich… | 29.00K | -69.3% | $437,565 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | Manufacturers Life Insurance… | 28.48K | -0.8% | $429,824 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 71 | Wealth Enhancement Advisory… | 26.44K | +19.5% | $407,404 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 72 | New York State Common Retirement… | 26.35K | +32.1% | $397,591 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 73 | Nomura Holdings Inc | 25.89K | New | $390,665 | 0.0% | New | 1 | SEC ↗ |
| 74 | Pnc Financial Services Group, Inc. | 23.75K | +14.1% | $358,388 | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 75 | Fifth Third Bancorp | 22.13K | -2.1% | $333,884 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 76 | Walleye Trading LLC | 20.85K | New | $314,611 | 0.0% | New | 1 | SEC ↗ |
| 77 | Captrust Financial Advisors | 16.92K | +12.5% | $255,294 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | Mercer Global Advisors Inc /Adv | 16.41K | -18.8% | $247,657 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 79 | Creative Planning | 16.22K | New | $244,699 | 0.0% | New | 1 | SEC ↗ ×2 |
| 80 | Sei Investments Co | 15.81K | -83.4% | $238,638 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 81 | Corient Private Wealth LP | 15.09K | -55.3% | $227,754 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 82 | Neuberger Berman Group LLC | 13.38K | -16.7% | $201,934 | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 83 | Pictet Asset Management Holding SA | 10.76K | 0.0% | $162,429 | 0.0% | Held | 2 | SEC ↗ |
| 84 | Victory Capital Management Inc | 10.47K | -3.8% | $157,977 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 85 | Mitsubishi UFJ Trust & Banking Corp | 7.49K | New | $113,084 | 0.0% | New | 1 | SEC ↗ |
| 86 | Ensign Peak Advisors, Inc | 5.03K | 0.0% | $75,933 | 0.0% | Held | 3 | SEC ↗ |
| 87 | Osaic Holdings, Inc. | 3.11K | +20.2% | $46,937 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 88 | Us Bancorp \De\ | 1.80K | -18.6% | $27,117 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 89 | Assetmark, Inc | 1.75K | 0.0% | $26,408 | 0.0% | Held | 3 | SEC ↗ |
| 90 | BNP Paribas Asset Management… | 1.10K | -18.6% | $16,569 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 91 | Optiver Holding B.V. | 434 | +5325.0% | $6,549 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Northwestern Mutual Wealth… | 290 | -82.2% | $4,376 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 93 | Rockefeller Capital Management L.P. | 260 | -40.0% | $3,923 | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 94 | National Bank Of Canada /Fi/ | 183 | New | $2,760 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Squarepoint Ops LLC | $3.28M | 0.0% |
| Connor, Clark & Lunn… | $2.78M | 0.0% |
| Man Group plc | $769,243 | 0.0% |
| Nomura Holdings Inc | $390,665 | 0.0% |
| Walleye Trading LLC | $314,611 | 0.0% |
| Creative Planning | $244,699 | 0.0% |
| Mitsubishi UFJ Trust &… | $113,084 | 0.0% |
| National Bank Of Canada /Fi/ | $2,760 | 0.0% |
Exited
| Marshall Wace | $27.65M | was 0.0% |
| Baillie Gifford | $20.88M | was 0.0% |
| Toronto Dominion Bank | $2.88M | was 0.0% |
| Canada Pension Plan… | $2.27M | was 0.0% |
| Renaissance Technologies | $1.12M | was 0.0% |
| American Century Companies Inc | $641,620 | was 0.0% |
| Focus Partners Wealth | $336,529 | was 0.0% |
| Allianz Asset Management GmbH | $323,973 | was 0.0% |
| Amundi | $241,830 | was 0.0% |
| ProShare Advisors LLC | $202,321 | was 0.0% |
| Simplex Trading, Llc | $55,650 | was 0.0% |
| Group One Trading Llc | $34,794 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 51.40K shares, $985 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.
Aug 06
SC 13G/A — Voya Financial, Inc.
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: Q2 2026 ·
Methodology ·
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