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TANDEM DIABETES (TNDM)
NASDAQ
$18.43-$0.17 (-0.90%)
Price as of Jun 03, 2026 7:34 PM EDT- $1.2BMarket Cap
- -9.84%1-Year Change
- Medical DevicesIndustry
TANDEM DIABETES (TNDM)
$18.43-$0.17 (-0.90%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK FUNDING, INC. /DE | 17.07% | 11.7M | +587,379 (+5.02%) | Dec 31, 2024 |
BLACKROCK INC. | 16.23% | 11.1M | +1.9M (+17.00%) | Jun 30, 2024 |
BLACKROCK, INC. | 15.60% | 10.7M | -458,337 (-4.29%) | Mar 31, 2026 |
VANGUARD GROUP INC | 10.71% | 7.3M | +278,042 (+3.79%) | Dec 31, 2025 |
UBS GROUP AG | 7.56% | 5.2M | +2.4M (+46.99%) | Mar 31, 2026 |
SESSA CAPITAL IM, L.P. | 6.90% | 4.7M | -269,243 (-5.69%) | Mar 31, 2026 |
N/A | 5.83% | 4.0M | +4.0M (+100.00%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
Virtus Investment Trust | 19.65% | 13.5M | +13.5M (+100.00%) | Mar 31, 2026 |
Virtus Strategy Trust | 18.62% | 12.8M | +12.8M (+100.00%) | Mar 31, 2026 |
iSHARES TRUST | 10.65% | 7.3M | -83,710 (-1.15%) | Mar 31, 2026 |
VANGUARD INDEX FUNDS | 7.83% | 5.4M | +104,043 (+1.94%) | Mar 31, 2026 |
NEW PERSPECTIVE FUND | 2.91% | 2.0M | 0 (0.00%) | Mar 31, 2026 |
Manager Directed Portfolios | 2.22% | 1.5M | 0 (0.00%) | Mar 31, 2026 |
Virtus Diversified Income & Convertible Fund | 2.02% | 1.4M | 0 (0.00%) | Jan 30, 2026 |
Current Ownership Distribution
- Institutions1.3B (65.36%)
- Mutual Funds676.9M (34.55%)
- Insiders1.7M (0.09%)
- Other0 (0.00%)
Insider Transactions
- 0.09% (1.7M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 1Number of InsiderSelling (last 12 months)
- $1.7MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Kyrillos Jean-Claude EVP & Chief Operating Officer | Award | May 29, 2026 | $0.00 | 29,136 | $0.00 | 29,136 |
Vosseller Leigh EVP & CHIEF FINANCIAL OFFICER | Award | May 29, 2026 | $0.00 | 62,657 | $0.00 | 62,657 |
Morrison Susan EVP & Chief Admin. Officer | Award | May 29, 2026 | $0.00 | 29,136 | $0.00 | 29,136 |
Gasser Elizabeth Anne EVP, Chief Strategy Officer | Award | May 29, 2026 | $0.00 | 29,136 | $0.00 | 29,136 |
Hansen Shannon Marie EVP & Chief Legal Officer | Award | May 29, 2026 | $0.00 | 29,136 | $0.00 | 29,136 |
Carpenter Rick EVP & Chief Technology Officer | Award | May 29, 2026 | $0.00 | 26,003 | $0.00 | 26,003 |
Sheridan John F PRESIDENT & CEO | Award | May 29, 2026 | $0.00 | 191,103 | $0.00 | 191,103 |
Sodhi Rajwant | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 0 |
McGroddy-Goetz Kathleen | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 0 |
Howell Peyton R | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 0 |
TWOMEY CHRISTOPHER J | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 0 |
Allen Dick | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 0 |
Malagueira Joao Paulo Falcao | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 0 |
Cha Myoungil | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 0 |
TWOMEY CHRISTOPHER J | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 24,434 |
Sodhi Rajwant | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 24,280 |
McGroddy-Goetz Kathleen | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 26,612 |
Howell Peyton R | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 29,836 |
ROBERTSON REBECCA B | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 0 |
Allen Dick | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 28,146 |
Malagueira Joao Paulo Falcao | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 22,458 |
Cha Myoungil | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 22,458 |
ROBERTSON REBECCA B | Exempt | May 21, 2026 | $0.00 | 8,759 | $0.00 | 22,542 |
Sodhi Rajwant | Award | May 20, 2026 | $0.00 | 10,220 | $0.00 | 10,220 |
TWOMEY CHRISTOPHER J | Award | May 20, 2026 | $0.00 | 10,220 | $0.00 | 10,220 |
Howell Peyton R | Award | May 20, 2026 | $0.00 | 10,220 | $0.00 | 10,220 |
McGroddy-Goetz Kathleen | Award | May 20, 2026 | $0.00 | 10,220 | $0.00 | 10,220 |
Allen Dick | Award | May 20, 2026 | $0.00 | 10,220 | $0.00 | 10,220 |
Malagueira Joao Paulo Falcao | Award | May 20, 2026 | $0.00 | 10,220 | $0.00 | 10,220 |
Cha Myoungil | Award | May 20, 2026 | $0.00 | 10,220 | $0.00 | 10,220 |