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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
NASDAQ · Healthcare · Medical - Devices · Alpha Radar Buy · Power 60 · $1.2B mcap · 63M float · 3.58% daily turnover · Short 57% of daily vol

🏦 Institutional Activity

Latest: Q1 2026
309
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

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms