Tandem Diabetes Care Inc Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| BLACKROCK, INC. | 05/13/2026 | 10.69 M | $204.94 M | -4.11% | 15.72% |
| UBS GROUP AG | 05/05/2026 | 5.18 M | $99.27 M | 88.63% | 7.61% |
| SESSA CAPITAL IM, L.P. | 05/15/2026 | 4.73 M | $90.69 M | -5.38% | 6.96% |
| 05/08/2026 | 3.99 M | $76.55 M | 100.00% | 5.87% | |
| ARROWMARK COLORADO HOLDINGS LLC | 05/15/2026 | 3.10 M | $59.50 M | 7.40% | 4.56% |
| 05/15/2026 | 3.04 M | $58.26 M | 100.00% | 4.47% | |
| GW&K INVESTMENT MANAGEMENT, LLC | 05/13/2026 | 2.69 M | $51.55 M | 0.52% | 3.95% |
| STATE STREET CORP | 05/15/2026 | 2.66 M | $51.04 M | 0.78% | 3.91% |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 05/15/2026 | 2.30 M | $44.18 M | 43.10% | 3.39% |
| GOLDMAN SACHS GROUP INC | 05/15/2026 | 2.22 M | $42.54 M | 31.81% | 3.26% |
| CITADEL ADVISORS LLC | 05/15/2026 | 2.19 M | $42.03 M | 4.98% | 3.22% |
| UBS GROUP AG | 05/05/2026 | 2.05 M | $39.26 M | 390.10% | 3.01% |
| PARADICE INVESTMENT MANAGEMENT LLC | 05/15/2026 | 2.04 M | $39.15 M | -1.70% | 3.00% |
| TWO SIGMA INVESTMENTS, LP | 05/15/2026 | 1.86 M | $35.74 M | 55.15% | 2.74% |
| GEODE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 1.68 M | $32.21 M | 1.85% | 2.47% |
| JENNISON ASSOCIATES LLC | 05/06/2026 | 1.66 M | $31.79 M | -17.95% | 2.44% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 05/15/2026 | 1.52 M | $29.21 M | -7.85% | 2.24% |
| MARSHALL WACE, LLP | 05/15/2026 | 1.44 M | $27.65 M | 64.75% | 2.12% |
| MORGAN STANLEY | 05/15/2026 | 1.36 M | $26.02 M | -34.75% | 2.00% |
| FREESTONE GROVE PARTNERS LP | 05/15/2026 | 1.33 M | $25.51 M | -7.77% | 1.96% |
| FIRST LIGHT ASSET MANAGEMENT, LLC | 05/15/2026 | 1.31 M | $25.20 M | 20.67% | 1.93% |
| BAILLIE GIFFORD & CO | 05/08/2026 | 1.09 M | $20.88 M | -4.90% | 1.60% |
| WELLINGTON MANAGEMENT GROUP LLP | 05/15/2026 | 1.04 M | $19.99 M | 960.70% | 1.53% |
| VOYA INVESTMENT MANAGEMENT LLC | 05/12/2026 | 804.14 K | $15.42 M | 151.66% | 1.18% |
| D. E. SHAW & CO., INC. | 05/15/2026 | 783.91 K | $15.03 M | -8.24% | 1.15% |
| SOLEUS CAPITAL MANAGEMENT, L.P. | 05/14/2026 | 783.00 K | $15.01 M | 100.00% | 1.15% |
| 06/12/2026 | 761.91 K | $14.61 M | 100.00% | 1.12% | |
| MILLENNIUM MANAGEMENT LLC | 05/15/2026 | 761.67 K | $14.60 M | 30.52% | 1.12% |
| FMR LLC | 05/15/2026 | 714.01 K | $13.69 M | 6.15% | 1.05% |
| NORTHERN TRUST CORP | 05/14/2026 | 706.61 K | $13.55 M | 2.16% | 1.04% |
| ROYCE & ASSOCIATES LP | 05/12/2026 | 696.59 K | $13.35 M | 7.13% | 1.02% |
| QUANTINNO CAPITAL MANAGEMENT LP | 05/15/2026 | 653.87 K | $12.53 M | 123.54% | 0.96% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 05/15/2026 | 642.60 K | $12.32 M | -0.57% | 0.94% |
| EXODUSPOINT CAPITAL MANAGEMENT, LP | 05/14/2026 | 632.90 K | $12.13 M | 100.00% | 0.93% |
| HOLOCENE ADVISORS, LP | 05/15/2026 | 477.36 K | $9.15 M | 2,807.53% | 0.70% |
| VANGUARD FIDUCIARY TRUST CO | 05/08/2026 | 471.66 K | $9.04 M | 100.00% | 0.69% |
| ABRDN PLC | 04/29/2026 | 434.03 K | $8.32 M | -20.66% | 0.64% |
| BARCLAYS PLC | 05/15/2026 | 421.24 K | $8.08 M | -54.11% | 0.62% |
| POINT72 ASSET MANAGEMENT, L.P. | 05/15/2026 | 420.48 K | $8.06 M | 100.00% | 0.62% |
| FRONTIER CAPITAL MANAGEMENT CO LLC | 05/15/2026 | 397.21 K | $7.61 M | -3.65% | 0.58% |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 373.22 K | $7.15 M | -46.87% | 0.55% |
| NUVEEN, LLC | 04/30/2026 | 363.80 K | $6.97 M | -35.41% | 0.53% |
| DAFNA CAPITAL MANAGEMENT LLC | 05/15/2026 | 355.21 K | $6.81 M | 0.00% | 0.52% |
| JPMORGAN CHASE & CO | 05/13/2026 | 349.79 K | $6.85 M | 2.39% | 0.51% |
| FIRST TRUST ADVISORS LP | 05/13/2026 | 342.71 K | $6.57 M | 100.00% | 0.50% |
| BANK OF NEW YORK MELLON CORP | 05/05/2026 | 336.29 K | $6.45 M | -3.85% | 0.49% |
| AQR CAPITAL MANAGEMENT LLC | 05/15/2026 | 331.92 K | $6.36 M | -2.26% | 0.49% |
| PRINCIPAL FINANCIAL GROUP INC | 05/04/2026 | 331.54 K | $6.36 M | 2.24% | 0.49% |
| INVESCO LTD. | 05/12/2026 | 294.05 K | $5.64 M | 5.88% | 0.43% |
| ACADIAN ASSET MANAGEMENT LLC | 05/13/2026 | 278.12 K | $5.32 M | -29.19% | 0.41% |
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Tandem Diabetes Care Inc institutional Ownership - FAQ's
During the previous two years, 382 institutional investors and hedge funds held shares of Tandem Diabetes Care Inc. The most heavily invested institutionals were:
BlackRock, Inc.: 10.69 M
Sessa Capital IM, L.P.: 4.73 M
ArrowMark Colorado Holdings LLC: 3.1 M
GW&K Investment Management, LLC: 2.69 M
STATE STREET CORP: 2.66 M
DRIEHAUS CAPITAL MANAGEMENT LLC: 2.3 M
115.65% of Tandem Diabetes Care Inc stock is owned by institutional investors.
Institutional investors have bought a total of 96.76 M shares in the last 24 months. This purchase volume represents approximately $2.02 B in transactions.