Fund shareholders of Tandem Diabetes Care Inc
ISIN US8753722037 · United States · LEI 549300JEPFOD0K4D3I05
- Fund shareholders
- 208
- Of which ETFs
- 50 158 other funds
- Value held
- 402.6M $
- Share of capital
- 36.6 % of 69.6M shares on Aug 3, 2026
208 funds hold this company. This table lists the 206 that declare it in a regulatory filing. The other 2 publish their holdings in their own reports. The “Fund reports” tab lists them, with their weight.
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 4,129,585 | 62.3M $ | 0.06 % | 5.94 % | as of Jun 30, 2026 ↗ |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2,186,918 | 33M $ | 0.00 % | 3.14 % | as of Jun 30, 2026 ↗ |
| iShares Russell 2000 ETF iShares Trust | 1,818,684 | 27.4M $ | 0.03 % | 2.61 % | as of Jun 30, 2026 ↗ |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1,570,019 | 23.7M $ | 0.01 % | 2.26 % | as of Jun 30, 2026 ↗ |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 901,467 | 13.6M $ | 0.03 % | 1.30 % | as of Jun 30, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 788,509 | 11.9M $ | 0.01 % | 1.13 % | as of Jun 30, 2026 ↗ |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 763,465 | 14.9M $ | 0.04 % | 1.10 % | as of Jul 31, 2026 ↗ |
| PGIM Jennison Health Sciences Fund Prudential Sector Funds, Inc. | 680,031 | 11.7M $ | 0.84 % | 0.98 % | as of May 29, 2026 ↗ |
| iShares Russell 2000 Growth ETF iShares Trust | 644,820 | 9.7M $ | 0.06 % | 0.93 % | as of Jun 30, 2026 ↗ |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF SPDR SERIES TRUST | 627,958 | 9.5M $ | 0.06 % | 0.90 % | as of Jun 30, 2026 ↗ |
| Meridian Growth Fund Meridian Fund Inc | 483,102 | 7.3M $ | 1.34 % | 0.69 % | as of Jun 30, 2026 ↗ |
| Strategic Advisers Fidelity U.S. Total Stock Fund Fidelity Rutland Square Trust II | 476,900 | 8.2M $ | 0.00 % | 0.69 % | as of May 31, 2026 ↗ |
| VANGUARD TAX-MANAGED SMALL-CAP FUND VANGUARD TAX-MANAGED FUNDS | 454,971 | 6.9M $ | 0.06 % | 0.65 % | as of Jun 30, 2026 ↗ |
| Royce Small-Cap Opportunity Fund ROYCE FUND | 423,694 | 6.4M $ | 0.45 % | 0.61 % | as of Jun 30, 2026 ↗ |
| Fidelity Enhanced Small Cap Core ETF Fidelity Covington Trust | 360,810 | 5.4M $ | 0.09 % | 0.52 % | as of Jun 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 351,589 | 6M $ | 0.01 % | 0.51 % | as of May 31, 2026 ↗ |
| VANGUARD RUSSELL 2000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 348,096 | 6M $ | 0.03 % | 0.50 % | as of May 31, 2026 ↗ |
| iShares S&P Small-Cap 600 Growth ETF iShares Trust | 342,705 | 5.2M $ | 0.06 % | 0.49 % | as of Jun 30, 2026 ↗ |
| Schwab U.S. Small-Cap ETF SCHWAB STRATEGIC TRUST | 328,035 | 5.6M $ | 0.02 % | 0.47 % | as of May 31, 2026 ↗ |
| iShares U.S. Medical Devices ETF iShares Trust | 320,911 | 4.8M $ | 0.16 % | 0.46 % | as of Jun 30, 2026 ↗ |
| Meridian Small Cap Growth Fund Meridian Fund Inc | 274,345 | 4.1M $ | 1.52 % | 0.39 % | as of Jun 30, 2026 ↗ |
| AMG GW&K Small/Mid Cap Core Fund AMG Funds | 273,478 | 4.1M $ | 0.50 % | 0.39 % | as of Jun 30, 2026 ↗ |
| iShares S&P Small-Cap 600 Value ETF iShares Trust | 258,289 | 3.9M $ | 0.05 % | 0.37 % | as of Jun 30, 2026 ↗ |
| AMG GW&K Small Cap Core Fund AMG Funds | 258,058 | 3.9M $ | 0.50 % | 0.37 % | as of Jun 30, 2026 ↗ |
| VANGUARD S&P SMALL-CAP 600 INDEX FUND VANGUARD ADMIRAL FUNDS | 234,119 | 4M $ | 0.07 % | 0.34 % | as of May 31, 2026 ↗ |
| State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF SPDR SERIES TRUST | 204,353 | 3.1M $ | 0.06 % | 0.29 % | as of Jun 30, 2026 ↗ |
| VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND | 203,604 | 3.5M $ | 0.02 % | 0.29 % | as of May 31, 2026 ↗ |
| JPMorgan Small & Mid Cap Enhanced Equity ETF J.P. Morgan Exchange-Traded Fund Trust | 202,560 | 3.1M $ | 0.11 % | 0.29 % | as of Jun 30, 2026 ↗ |
| Driehaus Micro Cap Growth Fund Driehaus Mutual Funds | 188,224 | 2.8M $ | 0.48 % | 0.27 % | as of Jun 30, 2026 ↗ |
| Voya Small Cap Growth Fund Voya Equity Trust | 177,238 | 3M $ | 0.14 % | 0.25 % | as of May 31, 2026 ↗ |
| Mercer US Small/Mid Cap Equity Fund Mercer Funds | 175,126 | 2.6M $ | 0.14 % | 0.25 % | as of Jun 30, 2026 ↗ |
| Schwab Small-Cap Index Fund SCHWAB CAPITAL TRUST | 169,004 | 3.3M $ | 0.04 % | 0.24 % | as of Jul 31, 2026 ↗ |
| State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF SPDR SERIES TRUST | 160,544 | 2.4M $ | 0.05 % | 0.23 % | as of Jun 30, 2026 ↗ |
| Meridian Contrarian Fund Meridian Fund Inc | 159,000 | 2.4M $ | 0.35 % | 0.23 % | as of Jun 30, 2026 ↗ |
| State Street(R) SPDR(R) S&P(R) Health Care Equipment ETF SPDR SERIES TRUST | 152,433 | 2.3M $ | 1.52 % | 0.22 % | as of Jun 30, 2026 ↗ |
| Invesco RAFI US 1500 Small-Mid ETF Invesco Exchange-Traded Fund Trust | 132,924 | 2.6M $ | 0.09 % | 0.19 % | as of Jul 31, 2026 ↗ |
| VANGUARD EXPLORER FUND VANGUARD EXPLORER FUND | 132,594 | 2.6M $ | 0.01 % | 0.19 % | as of Jul 31, 2026 ↗ |
| Master Small Cap Index Series Quantitative Master Series LLC | 130,589 | 2M $ | 0.03 % | 0.19 % | as of Jun 30, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 128,235 | 2.2M $ | 0.00 % | 0.18 % | as of May 31, 2026 ↗ |
| VANGUARD STRATEGIC EQUITY FUND VANGUARD HORIZON FUNDS | 109,250 | 1.6M $ | 0.01 % | 0.16 % | as of Jun 30, 2026 ↗ |
| JNL Small Cap Index Fund JNL Series Trust | 107,788 | 1.6M $ | 0.06 % | 0.15 % | as of Jun 30, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 103,094 | 1.8M $ | 0.00 % | 0.15 % | as of May 31, 2026 ↗ |
| Columbia Small Cap Index Fund COLUMBIA FUNDS SERIES TRUST | 101,213 | 1.7M $ | 0.07 % | 0.15 % | as of May 31, 2026 ↗ |
| BlackRock Advantage Small Cap Core Fund BlackRock Funds | 94,016 | 1.6M $ | 0.03 % | 0.14 % | as of May 29, 2026 ↗ |
| Nuveen Small Cap Blend Index Fund TIAA-CREF Funds | 92,444 | 1.8M $ | 0.04 % | 0.13 % | as of Jul 31, 2026 ↗ |
| Adara Smaller Companies Fund RBB Fund, Inc. | 91,507 | 1.6M $ | 0.19 % | 0.13 % | as of May 31, 2026 ↗ |
| VANGUARD STRATEGIC SMALL-CAP EQUITY FUND VANGUARD HORIZON FUNDS | 88,447 | 1.3M $ | 0.04 % | 0.13 % | as of Jun 30, 2026 ↗ |
| iShares Core S&P Total U.S. Stock Market ETF iShares Trust | 87,311 | 1.3M $ | 0.00 % | 0.13 % | as of Jun 30, 2026 ↗ |
| Strategic Advisers U.S. Total Stock Fund Fidelity Rutland Square Trust II | 86,800 | 1.5M $ | 0.00 % | 0.12 % | as of May 31, 2026 ↗ |
| PACE Small/Medium Co Growth Equity Investments PACE SELECT ADVISORS TRUST | 82,540 | 1.6M $ | 0.62 % | 0.12 % | as of Jul 31, 2026 ↗ |
| EQ/2000 Managed Volatility Portfolio EQ Advisors Trust | 75,896 | 1.1M $ | 0.03 % | 0.11 % | as of Jun 30, 2026 ↗ |
| Keeley Small Cap Fund Teton Westwood Funds | 75,000 | 1.1M $ | 0.77 % | 0.11 % | as of Jun 30, 2026 ↗ |
| VANGUARD GROWTH AND INCOME FUND VANGUARD QUANTITATIVE FUNDS | 71,000 | 1.1M $ | 0.01 % | 0.10 % | as of Jun 30, 2026 ↗ |
| VANGUARD S&P SMALL-CAP 600 VALUE INDEX FUND VANGUARD ADMIRAL FUNDS | 65,459 | 1.1M $ | 0.06 % | 0.09 % | as of May 31, 2026 ↗ |
| Fidelity Small Cap Growth Index Fund Fidelity Salem Street Trust | 65,456 | 987.7K $ | 0.06 % | 0.09 % | as of Jun 30, 2026 ↗ |
| VANGUARD RUSSELL 2000 GROWTH INDEX FUND VANGUARD SCOTTSDALE FUNDS | 63,422 | 1.1M $ | 0.06 % | 0.09 % | as of May 31, 2026 ↗ |
| iShares ESG Aware MSCI USA Small-Cap ETF iShares Trust | 60,466 | 1M $ | 0.04 % | 0.09 % | as of May 31, 2026 ↗ |
| M Capital Appreciation Fund NORTHERN LIGHTS FUND TRUST II | 59,134 | 892.3K $ | 0.28 % | 0.08 % | as of Jun 30, 2026 ↗ |
| PSF Small-Cap Stock Index Portfolio Prudential Series Fund | 57,844 | 872.9K $ | 0.05 % | 0.08 % | as of Jun 30, 2026 ↗ |
| Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Goldman Sachs ETF Trust | 54,329 | 934.5K $ | 0.09 % | 0.08 % | as of May 31, 2026 ↗ |
| Nuveen Equity Index Fund TIAA-CREF Funds | 51,545 | 1M $ | 0.00 % | 0.07 % | as of Jul 31, 2026 ↗ |
| Catholic Responsible Investments Small-Mid Cap Equity Fund Catholic Responsible Investments Funds | 51,280 | 1M $ | 0.17 % | 0.07 % | as of Jul 31, 2026 ↗ |
| VANGUARD TOTAL WORLD STOCK INDEX FUND VANGUARD INTERNATIONAL EQUITY INDEX FUNDS | 51,157 | 997.6K $ | 0.00 % | 0.07 % | as of Jul 31, 2026 ↗ |
| Invesco S&P SmallCap 600 Revenue ETF Invesco Exchange-Traded Fund Trust II | 50,956 | 876.4K $ | 0.05 % | 0.07 % | as of May 31, 2026 ↗ |
| SmallCap S&P 600 Index Fund Principal Funds, Inc | 50,490 | 984.6K $ | 0.07 % | 0.07 % | as of Jul 31, 2026 ↗ |
| Federated Hermes MDT Small Cap Growth Fund Federated Hermes MDT Series | 50,056 | 976.1K $ | 0.12 % | 0.07 % | as of Jul 31, 2026 ↗ |
| LVIP State Street Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 49,700 | 750K $ | 0.03 % | 0.07 % | as of Jun 30, 2026 ↗ |
| Federated Hermes MDT Small Cap Core Fund Federated Hermes MDT Series | 49,696 | 969.1K $ | 0.04 % | 0.07 % | as of Jul 31, 2026 ↗ |
| Invesco S&P SmallCap Health Care ETF Invesco Exchange-Traded Fund Trust II | 47,493 | 816.9K $ | 0.62 % | 0.07 % | as of May 31, 2026 ↗ |
| Empower S&P Small Cap 600 Index Fund EMPOWER FUNDS, INC. | 47,468 | 716.3K $ | 0.06 % | 0.07 % | as of Jun 30, 2026 ↗ |
| VOYA SMALL COMPANY PORTFOLIO Voya VARIABLE PORTFOLIOS INC | 47,245 | 712.9K $ | 0.33 % | 0.07 % | as of Jun 30, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 45,195 | 777.4K $ | 0.00 % | 0.06 % | as of May 31, 2026 ↗ |
| VANGUARD S&P SMALL-CAP 600 GROWTH INDEX FUND VANGUARD ADMIRAL FUNDS | 45,155 | 776.7K $ | 0.08 % | 0.06 % | as of May 31, 2026 ↗ |
| THRIVENT SMALL CAP INDEX PORTFOLIO Thrivent Series Fund, Inc. | 45,001 | 679.1K $ | 0.06 % | 0.06 % | as of Jun 30, 2026 ↗ |
| JPMorgan U.S. Small Company Fund JPMorgan Trust I | 44,194 | 666.9K $ | 0.06 % | 0.06 % | as of Jun 30, 2026 ↗ |
| Voya MI Dynamic Small Cap Fund Voya Equity Trust | 43,295 | 744.7K $ | 0.40 % | 0.06 % | as of May 31, 2026 ↗ |
| Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 41,337 | 806.1K $ | 0.00 % | 0.06 % | as of Jul 31, 2026 ↗ |
| VIP Disciplined Small Cap Portfolio Variable Insurance Products Fund II | 41,208 | 621.8K $ | 0.09 % | 0.06 % | as of Jun 30, 2026 ↗ |
| BlackRock Advantage Small Cap Growth Fund BlackRock Funds | 39,716 | 599.3K $ | 0.07 % | 0.06 % | as of Jun 30, 2026 ↗ |
| Schwab U.S. Broad Market ETF SCHWAB STRATEGIC TRUST | 39,684 | 682.6K $ | 0.00 % | 0.06 % | as of May 31, 2026 ↗ |
| Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust | 37,313 | 727.6K $ | 0.00 % | 0.05 % | as of Jul 31, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 37,058 | 559.2K $ | 0.00 % | 0.05 % | as of Jun 30, 2026 ↗ |
| EQ/Small Company Index Portfolio EQ Advisors Trust | 36,370 | 548.8K $ | 0.03 % | 0.05 % | as of Jun 30, 2026 ↗ |
| Small Cap Index Fund Northern Funds | 35,361 | 533.6K $ | 0.03 % | 0.05 % | as of Jun 30, 2026 ↗ |
| Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust | 34,546 | 521.3K $ | 0.00 % | 0.05 % | as of Jun 30, 2026 ↗ |
| Global X Russell 2000 ETF GLOBAL X FUNDS | 33,444 | 652.2K $ | 0.04 % | 0.05 % | as of Jul 31, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 33,106 | 499.6K $ | 0.00 % | 0.05 % | as of Jun 30, 2026 ↗ |
| Destinations Small-Mid Cap Equity Fund Brinker Capital Destinations Trust | 32,758 | 563.4K $ | 0.08 % | 0.05 % | as of May 31, 2026 ↗ |
| BNY Mellon Smallcap Stock Index Fund BNY MELLON INDEX FUNDS, INC. | 32,491 | 633.6K $ | 0.07 % | 0.05 % | as of Jul 31, 2026 ↗ |
| Fidelity MSCI Health Care Index ETF FIDELITY COVINGTON TRUST | 32,447 | 632.7K $ | 0.02 % | 0.05 % | as of Jul 31, 2026 ↗ |
| LVIP Franklin Templeton Multi-Factor SMID Cap Equity Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 30,420 | 459K $ | 0.04 % | 0.04 % | as of Jun 30, 2026 ↗ |
| Inspire Small/Mid Cap ETF Northern Lights Fund Trust IV | 28,234 | 485.6K $ | 0.15 % | 0.04 % | as of May 31, 2026 ↗ |
| Small Cap Index Fund VALIC Co I | 27,707 | 476.6K $ | 0.03 % | 0.04 % | as of May 31, 2026 ↗ |
| Fidelity ZERO Extended Market Index Fund Fidelity Concord Street Trust | 25,157 | 490.6K $ | 0.02 % | 0.04 % | as of Jul 31, 2026 ↗ |
| EQ/AB Small Cap Growth Portfolio EQ Advisors Trust | 24,740 | 373.3K $ | 0.02 % | 0.04 % | as of Jun 30, 2026 ↗ |
| U.S. Small Cap Equity Fund RUSSELL INVESTMENT CO | 24,501 | 477.8K $ | 0.05 % | 0.04 % | as of Jul 31, 2026 ↗ |
| STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO STATE STREET INSTITUTIONAL INVESTMENT TRUST | 23,592 | 356K $ | 0.01 % | 0.03 % | as of Jun 30, 2026 ↗ |
| MetLife Russell 2000 Index Portfolio Brighthouse Funds Trust II | 23,352 | 352.4K $ | 0.03 % | 0.03 % | as of Jun 30, 2026 ↗ |
| Fidelity Nasdaq Composite Index ETF Fidelity Commonwealth Trust | 23,304 | 400.8K $ | 0.00 % | 0.03 % | as of May 31, 2026 ↗ |
| Index 600 Stock Portfolio NORTHWESTERN MUTUAL SERIES FUND INC | 22,898 | 345.5K $ | 0.06 % | 0.03 % | as of Jun 30, 2026 ↗ |
Funds that publish their own holdings
| Fund | Weight in fund | |
|---|---|---|
| Edmond de Rothschild Fund - Healthcare Edmond de Rothschild Asset Management (Luxembourg) | 1.39 % | as of Mar 31, 2026 ↗ |
| Fidelity Funds - American Growth Fund FIL Investment Management (Luxembourg) S.A. | 0.36 % | as of Apr 30, 2025 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| State Street(R) SPDR(R) S&P(R) Health Care Equipment ETF SPDR SERIES TRUST | 1.52 % | as of Jun 30, 2026 ↗ |
| Meridian Small Cap Growth Fund Meridian Fund Inc | 1.52 % | as of Jun 30, 2026 ↗ |
| Edmond de Rothschild Fund - Healthcare Edmond de Rothschild Asset Management (Luxembourg) | 1.39 % | as of Mar 31, 2026 ↗ |
| Meridian Growth Fund Meridian Fund Inc | 1.34 % | as of Jun 30, 2026 ↗ |
| Global X HealthTech ETF GLOBAL X FUNDS | 1.18 % | as of May 31, 2026 ↗ |
| Disciplined U.S. Small Cap Equity Portfolio GLENMEDE FUND INC | 0.88 % | as of Jul 31, 2026 ↗ |
| PGIM Jennison Health Sciences Fund Prudential Sector Funds, Inc. | 0.84 % | as of May 29, 2026 ↗ |
| Keeley Small Cap Fund Teton Westwood Funds | 0.77 % | as of Jun 30, 2026 ↗ |
| PACE Small/Medium Co Growth Equity Investments PACE SELECT ADVISORS TRUST | 0.62 % | as of Jul 31, 2026 ↗ |
| Invesco S&P SmallCap Health Care ETF Invesco Exchange-Traded Fund Trust II | 0.62 % | as of May 31, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q3 | 206 | -8 | 25,498,822 | -3.3 % |
| 2026Q2 | 214 | +13 | 26,364,172 | +2.6 % |
| 2026Q1 | 201 | -1 | 25,696,614 | -6.0 % |
| 2025Q4 | 202 | -25 | 27,324,371 | -9.2 % |
| 2025Q3 | 227 | -4 | 30,099,191 | +0.9 % |
| 2025Q2 | 231 | -6 | 29,840,675 | -3.4 % |
| 2025Q1 | 237 | -6 | 30,889,429 | -5.5 % |
| 2024Q4 | 243 | -21 | 32,677,163 | +1.2 % |
| 2024Q3 | 264 | +14 | 32,278,198 | +0.4 % |
| 2024Q2 | 250 | -3 | 32,160,648 | -3.1 % |
| 2024Q1 | 253 | -9 | 33,182,857 | -7.7 % |
| 2023Q4 | 262 | 35,933,508 |
Institutional managers
263 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| BlackRock, Inc. | 10,690,844 | 204.9M $ | as of Mar 31, 2026 |
| Sessa Capital IM, L.P. | 4,730,757 | 90.7M $ | as of Mar 31, 2026 |
| ArrowMark Colorado Holdings LLC | 3,103,609 | 59.5M $ | as of Mar 31, 2026 |
| GW&K Investment Management, LLC | 2,689,106 | 51.6K $ | as of Mar 31, 2026 |
| STATE STREET CORP | 2,662,260 | 51M $ | as of Mar 31, 2026 |
| Driehaus Capital Management LLC | 2,304,414 | 44.2M $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 2,218,922 | 42.5M $ | as of Mar 31, 2026 |
| CITADEL ADVISORS LLC | 2,192,667 | 42M $ | as of Mar 31, 2026 |
| UBS Group AG | 2,047,801 | 39.3M $ | as of Mar 31, 2026 |
| Paradice Investment Management LLC | 2,042,425 | 39.2M $ | as of Mar 31, 2026 |
| TWO SIGMA INVESTMENTS, LP | 1,864,194 | 35.7M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 1,679,863 | 32.2M $ | as of Mar 31, 2026 |
| JENNISON ASSOCIATES LLC | 1,658,448 | 31.8M $ | as of Mar 31, 2026 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 1,523,946 | 29.2M $ | as of Mar 31, 2026 |
| MARSHALL WACE, LLP | 1,442,472 | 27.7M $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 1,357,542 | 26M $ | as of Mar 31, 2026 |
| Freestone Grove Partners LP | 1,330,742 | 25.5M $ | as of Mar 31, 2026 |
| First Light Asset Management, LLC | 1,314,715 | 25.2M $ | as of Mar 31, 2026 |
| BAILLIE GIFFORD & CO | 1,089,393 | 20.9M $ | as of Mar 31, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | 1,042,764 | 20M $ | as of Mar 31, 2026 |
| VOYA INVESTMENT MANAGEMENT LLC | 804,137 | 15.4M $ | as of Mar 31, 2026 |
| D. E. Shaw & Co., Inc. | 783,906 | 15M $ | as of Mar 31, 2026 |
| Soleus Capital Management, L.P. | 783,000 | 15M $ | as of Mar 31, 2026 |
| Defilade Capital Management, L.P. | 761,905 | 14.6M $ | as of Mar 31, 2026 |
| MILLENNIUM MANAGEMENT LLC | 761,672 | 14.6M $ | as of Mar 31, 2026 |
Declared shareholders of Tandem Diabetes Care Inc
There is 1 beneficial ownership filing. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Voya Financial, Inc. | 0.20 % | 149,088 | as of Jun 30, 2026 · SCHEDULE 13G |
Funds holding the debt of Tandem Diabetes Care Inc
11 funds declare 13 bond lines of this company. The amount is the one the fund files. It is not a share of the debt, because no regulator publishes the amount outstanding in open access.
| Fund | Bond lines | Value | |
|---|---|---|---|
| Calamos Market Neutral Income Fund | 2 | 13.3M $ | as of Jul 31, 2026 |
| iShares Convertible Bond ETF | 2 | 12.3M $ | as of Jul 31, 2026 |
| Fidelity Convertible Securities Fund | 1 | 2.1M $ | as of May 31, 2026 |
| WESTWOOD ALTERNATIVE INCOME FUND | 1 | 2M $ | as of Jul 31, 2026 |
| AQR Diversified Arbitrage Fund | 1 | 1.8M $ | as of Jun 30, 2026 |
| Fidelity Strategic Dividend and Income Fund | 1 | 841.9K $ | as of May 31, 2026 |
| Advent Convertible Bond ETF | 1 | 578.5K $ | as of May 31, 2026 |
| PACE Alternative Strategies Investments | 1 | 195.5K $ | as of Jul 31, 2026 |
| JNL Multi-Manager Alternative Fund | 1 | 92.9K $ | as of Jun 30, 2026 |
| Lazard Enhanced Opportunities Portfolio | 1 | 43.7K $ | as of Jun 30, 2026 |
| Franklin Alternative Strategies Fund | 1 | 28.4K $ | as of May 29, 2026 |
Cite this page
Titelia. "Fund shareholders of Tandem Diabetes Care Inc". https://titelia.com/en/stocks/tandem-diabetes-care-inc-US8753722037