Tandem Diabetes Care Ownership | Who Owns Tandem Diabetes Care?
Tandem Diabetes Care Ownership Summary
Tandem Diabetes Care is owned by 67.54% institutional investors, 1.05% insiders, and 31.41% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 17.85% of TNDM shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.11% of its assets in Tandem Diabetes Care shares.
TNDM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Tandem Diabetes Care | 67.54% | 1.05% | 31.41% |
| Sector | Healthcare Stocks | 57.39% | 9.93% | 32.68% |
| Industry | Medical Device Stocks | 40.18% | 9.93% | 49.89% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 11.70M | 17.85% | $421.36M |
| Vanguard group | 7.44M | 11.35% | $267.99M |
| Arrowmark colorado | 2.72M | 4.16% | $98.11M |
| Gw&k investment management | 2.12M | 3.24% | $76.49M |
| Fred alger management | 1.94M | 2.97% | $70.00M |
| Park west asset management | 1.60M | 2.44% | $57.63M |
| Stephens investment management group | 1.56M | 2.37% | $56.04M |
| Geode capital management | 1.53M | 2.34% | $55.26M |
| Jennison associates | 1.47M | 2.24% | $52.82M |
| Champlain investment partners | 1.38M | 2.11% | $49.70M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Paradice investment management | 956.41K | 6.83% | $34.45M |
| Park west asset management | 1.60M | 4.63% | $57.63M |
| Beaconlight capital | 331.21K | 4.42% | $11.93M |
| Kingdon capital management | 790.55K | 4.06% | $28.48M |
| Dafna capital management | 223.21K | 2.04% | $8.04M |
| Formula growth | 125.97K | 1.54% | $4.54M |
| Divisadero street capital management, lp | 360.23K | 1.52% | $12.98M |
| Arrowmark colorado | 2.72M | 1.32% | $98.11M |
| Lisanti capital growth | 118.55K | 1.03% | $4.27M |
| First light asset management | 292.12K | 1.01% | $10.52M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Hood river capital management | 1.28M | 0.68% | 1.28M |
| Brown advisory | 913.09K | 0.04% | 913.09K |
| Blackrock funding, inc. /de | 11.70M | 0.01% | 587.38K |
| Park west asset management | 1.60M | 4.63% | 530.00K |
| Baillie gifford | 746.11K | 0.02% | 523.84K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Capital world investors | 767.00K | 0.00% | -2.50M |
| Millennium management | 151.34K | 0.00% | -1.28M |
| Bellevue group | 782.46K | 0.54% | -1.07M |
| Janus henderson group | 29.81K | 0.00% | -883.73K |
| Next century growth investors | 201.84K | 0.54% | -780.84K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Hood river capital management | 1.28M | 0.68% | 1.28M | $46.04M |
| Brown advisory | 913.09K | 0.04% | 913.09K | $32.89M |
| Raymond james financial | 163.61K | 0.00% | 163.61K | $5.89M |
| Wealthfront advisers | 54.26K | 0.01% | 54.26K | $3.26M |
| Susquehanna fundamental investments | 51.70K | 0.03% | 51.70K | $1.86M |
Sold Out
| Holder | Change |
|---|---|
| Mendota financial group | -5.00 |
| Capital performance advisors llp | -9.00 |
| Cva family office | -11.00 |
| Capital advisors | -13.00 |
| Clearstead advisors | -16.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2024 | 210 | -40.17% | 44,265,510 | -39.39% | 67 | 0.54% | 119 | -29.59% | 53 | -54.70% |
| Sep 30, 2024 | 350 | 4.79% | 73,035,126 | -0.74% | 111 | 0.87% | 169 | -9.14% | 117 | 24.47% |
| Jun 30, 2024 | 334 | 9.15% | 73,578,824 | -0.68% | 113 | 0.88% | 186 | 6.29% | 94 | 13.25% |
| Mar 31, 2024 | 306 | 8.51% | 74,084,784 | 4.67% | 113 | 0.96% | 175 | 10.06% | 83 | -4.60% |
| Dec 31, 2023 | 282 | 17.50% | 70,776,638 | 1.71% | 108 | 0.95% | 159 | 44.55% | 87 | -1.14% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 4.06M | 6.11% | 2.79K |
| Vanguard Explorer Inv | 2.13M | 3.24% | 356.48K |
| Vanguard US Total Market Shares ETF | 2.08M | 3.13% | 1.77K |
| Vanguard Total Stock Mkt Idx Inv | 2.07M | 3.11% | 1.58K |
| iShares Russell 2000 ETF | 1.73M | 2.60% | -15.02K |
| Vanguard Small Cap Index | 1.68M | 2.52% | 1.36K |
| Bellevue Healthcare Ord | 1.52M | 2.32% | 1.52M |
| American Funds SMALLCAP World A | 1.49M | 2.26% | -2.42M |
| Stephens SMID Select Growth | 1.01M | 1.53% | 192.64K |
| Vanguard Institutional Extnd Mkt Idx Tr | 1.01M | 1.51% | 1.42K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 07, 2025 | Kyrillos Jean-Claude | EVP & Chief Operating Officer | Buy | $190.97K |
| Nov 20, 2024 | BLICKENSTAFF KIM D | - | Sell | $300.00K |
| Nov 21, 2024 | BLICKENSTAFF KIM D | - | Sell | $941.40K |
| Nov 15, 2024 | Novara Mark David | EVP & CHIEF COMMERCIAL OFFICER | Buy | $12.36K |
| May 30, 2024 | Allen Dick | - | Sell | $258.40K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q1 | 1 | - |
| 2024 Q4 | 1 | 2 |
| 2024 Q3 | - | - |
| 2024 Q2 | - | 1 |
| 2024 Q1 | - | - |
TNDM Ownership FAQ
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