TNDM NASDAQ
Tandem Diabetes Care, Inc.
1W: -5.3%
1M: +13.8%
3M: -19.5%
YTD: -18.3%
1Y: -15.3%
3Y: -28.9%
5Y: -79.5%
$17.24
-0.37 (-2.10%)
Weekly Expected Move ±15.6%
$13
$16
$19
$22
$25
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🏦 Institutional Activity
Latest: Q1 2026309
Institutions Holding
+1 vs prior
104.5%
Ownership
-30.50%
40
New
80
Increased
147
Reduced
63
Closed
👔 Insider Trades
25 records| Date | Name | Title | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-15 | Kyrillos Jean-Claude | officer: evp & chief operating officer | A-Grant/Award | 434 | $10.90 | $5K | Filing |
| 2026-05-15 | Kyrillos Jean-Claude | officer: evp & chief operating officer | F-Tax Withholding | 2,139 | $12.82 | $27K | Filing |
| 2026-05-15 | Hansen Shannon Marie | officer: evp & chief legal officer | A-Grant/Award | 1,886 | $10.90 | $21K | Filing |
| 2026-05-15 | Hansen Shannon Marie | officer: evp & chief legal officer | F-Tax Withholding | 3,901 | $12.82 | $50K | Filing |
| 2026-05-15 | Hansen Shannon Marie | officer: evp & chief legal officer | F-Tax Withholding | 559 | $12.82 | $7K | Filing |
| 2026-05-15 | Hansen Shannon Marie | officer: evp & chief legal officer | F-Tax Withholding | 732 | $12.82 | $9K | Filing |
| 2026-05-15 | Gasser Elizabeth Anne | officer: evp, chief strategy officer | A-Grant/Award | 1,337 | $10.90 | $15K | Filing |
| 2026-05-15 | Gasser Elizabeth Anne | officer: evp, chief strategy officer | F-Tax Withholding | 4,114 | $12.82 | $53K | Filing |
| 2026-05-15 | Gasser Elizabeth Anne | officer: evp, chief strategy officer | F-Tax Withholding | 589 | $12.82 | $8K | Filing |
| 2026-05-15 | Gasser Elizabeth Anne | officer: evp, chief strategy officer | F-Tax Withholding | 807 | $12.82 | $10K | Filing |
| 2026-04-15 | Kyrillos Jean-Claude | officer: evp & chief operating officer | F-Tax Withholding | 1,926 | $20.66 | $40K | Filing |
| 2026-03-17 | Novara Mark David | officer: evp & chief commercial officer | S-Sale | 187 | $23.05 | $4K | Filing |
| 2026-03-16 | Novara Mark David | officer: evp & chief commercial officer | F-Tax Withholding | 5,540 | $21.59 | $120K | Filing |
| 2026-02-17 | Gasser Elizabeth Anne | officer: evp, chief strategy officer | F-Tax Withholding | 647 | $18.95 | $12K | Filing |
| 2026-02-17 | Vosseller Leigh | officer: evp & chief financial officer | F-Tax Withholding | 616 | $18.95 | $12K | Filing |
| 2026-02-17 | Vosseller Leigh | officer: evp & chief financial officer | F-Tax Withholding | 619 | $18.95 | $12K | Filing |
| 2026-02-17 | Sheridan John F | officer: president & ceo | F-Tax Withholding | 2,400 | $18.95 | $45K | Filing |
| 2026-02-17 | Sheridan John F | officer: president & ceo | F-Tax Withholding | 1,963 | $18.95 | $37K | Filing |
| 2026-02-17 | Novara Mark David | officer: evp & chief commercial officer | F-Tax Withholding | 62 | $18.95 | $1K | Filing |
| 2026-02-17 | Morrison Susan | officer: evp & chief admin. officer | F-Tax Withholding | 372 | $18.95 | $7K | Filing |
| 2026-02-17 | Morrison Susan | officer: evp & chief admin. officer | F-Tax Withholding | 510 | $18.95 | $10K | Filing |
| 2026-02-17 | Hansen Shannon Marie | officer: evp & chief legal officer | F-Tax Withholding | 452 | $18.95 | $9K | Filing |
| 2026-02-17 | Hansen Shannon Marie | officer: evp & chief legal officer | F-Tax Withholding | 592 | $18.95 | $11K | Filing |
| 2026-02-17 | Carpenter Rick | officer: chief technology officer | F-Tax Withholding | 504 | $18.95 | $10K | Filing |
| 2026-02-17 | Carpenter Rick | officer: chief technology officer | F-Tax Withholding | 808 | $18.95 | $15K | Filing |
🏛️ Congressional Trades
7 records| Date | Politician | Chamber | Type | Amount | Filing |
|---|---|---|---|---|---|
| 2025-09-22 | Josh Gottheimer | House | Buy | $1,001 - $15,000 | Filing |
| 2025-03-19 | Josh Gottheimer | House | Sell | $1,001 - $15,000 | Filing |
| 2025-03-04 | Gilbert Cisneros | House | Buy | $1,001 - $15,000 | Filing |
| 2024-08-05 | Josh Gottheimer | House | Buy | $1,001 - $15,000 | Filing |
| 2023-07-12 | Daniel Goldman | House | Sell | $1,001 - $15,000 | Filing |
| 2022-08-23 | Ro Khanna | House | Sell | $1,001 - $15,000 | Filing |
| 2022-05-23 | Ro Khanna | House | Buy | $1,001 - $15,000 | Filing |
🏦 Top Institutional Holders
20 holders| Holder | Shares | Value | Date Reported | Filing | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10,690,844 | $205M | -458,337 | 2026-03-31 | Filing |
| Sessa Capital IM, L.P. | 4,730,757 | $91M | -269,243 | 2026-03-31 | Filing |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3,993,333 | $77M | +3,993,333 | 2026-03-31 | Filing |
| VANGUARD CAPITAL MANAGEMENT LLC | 3,038,919 | $58M | +3,038,919 | 2026-03-31 | Filing |
| GW&K Investment Management, LLC | 2,689,106 | $52M | +13,949 | 2026-03-31 | Filing |
| STATE STREET CORP | 2,662,260 | $51M | +20,536 | 2026-03-31 | Filing |
| Driehaus Capital Management LLC | 2,304,414 | $44M | +694,072 | 2026-03-31 | Filing |
| GOLDMAN SACHS GROUP INC | 2,218,922 | $43M | +535,522 | 2026-03-31 | Filing |
| UBS Group AG | 2,047,801 | $39M | +1,629,968 | 2026-03-31 | Filing |
| Paradice Investment Management LLC | 2,042,425 | $39M | -35,320 | 2026-03-31 | Filing |
| GEODE CAPITAL MANAGEMENT, LLC | 1,679,863 | $32M | +30,480 | 2026-03-31 | Filing |
| JENNISON ASSOCIATES LLC | 1,658,448 | $32M | -362,928 | 2026-03-31 | Filing |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 1,523,946 | $29M | -129,762 | 2026-03-31 | Filing |
| Freestone Grove Partners LP | 1,330,742 | $26M | -112,094 | 2026-03-31 | Filing |
| First Light Asset Management, LLC | 1,314,715 | $25M | +225,222 | 2026-03-31 | Filing |
| BAILLIE GIFFORD & CO | 1,089,393 | $21M | -56,123 | 2026-03-31 | Filing |
| WELLINGTON MANAGEMENT GROUP LLP | 1,042,764 | $20M | +944,455 | 2026-03-31 | Filing |
| VOYA INVESTMENT MANAGEMENT LLC | 804,137 | $15M | +484,609 | 2026-03-31 | Filing |
| Soleus Capital Management, L.P. | 783,000 | $15M | +783,000 | 2026-03-31 | Filing |
| Defilade Capital Management, L.P. | 761,905 | $15M | +761,905 | 2026-03-31 | Filing |