TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share (TNDM)

Q: What does CUSIP 875372203 represent in this 13F holders report?

CUSIP 875372203 is the security identifier for TNDM - TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

Q: How many institutions held TNDM - TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share in Q3 2021?

331 institutional investors reported TNDM - TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share for Q3 2021. Use the holders table for investor-level position and value details.

CUSIP: 875372203

Q3 2021 13F Holders as of 30 Sep 2021

Type / Class: Equity / Common Stock, par value $0.001 per share
Shares outstanding: 68,947,349
Total 13F shares: 61,294,210
Share change: +2,209,489
Total reported value: $7,318,019,845
Put/Call ratio: 95%
Price per share: $119.38
Number of holders: 331
Value change: +$274,585,725
Number of buys: 177
Number of sells: 139

Quarterly Holders Quick Answers

What is CUSIP 875372203?
CUSIP 875372203 identifies TNDM - TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q4 2021
Previous quarter: Q2 2021

Recent filing periods for CUSIP 875372203:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of TNDM - TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
FMR LLC	13F	Company	8.7%	5,994,644	$583,878,000	—	30 Jun 2021	13F
VANGUARD GROUP INC	13F	Company	8.1%	5,604,505	$545,879,000	—	30 Jun 2021	13F
Jackson Square Partners, LLC	13F	Company	5.3%	3,623,094	$352,889,000	—	30 Jun 2021	13F
BlackRock Finance, Inc.	13F	Company	5.1%	3,522,962	$343,136,000	—	30 Jun 2021	13F
Capital World Investors	13F	Company	4.8%	3,276,704	$319,151,000	—	30 Jun 2021	13F
CREDIT SUISSE AG/	13F	Company	2.4%	1,682,377	$163,863,000	—	30 Jun 2021	13F
Invesco Ltd.	13F	Company	2.3%	1,603,154	$156,147,000	—	30 Jun 2021	13F
Champlain Investment Partners, LLC	13F	Company	2.2%	1,546,570	$150,636,000	—	30 Jun 2021	13F
FEDERATED HERMES, INC.	13F	Company	1.8%	1,273,828	$124,071,000	—	30 Jun 2021	13F
BROWN CAPITAL MANAGEMENT LLC	13F	Company	1.8%	1,226,116	$119,424,000	—	30 Jun 2021	13F
STATE STREET CORP	13F	Company	1.7%	1,190,140	$115,920,000	—	30 Jun 2021	13F
RTW INVESTMENTS, LP	13F	Company	1.7%	1,147,408	$111,758,000	—	30 Jun 2021	13F
Bellevue Group AG	13F	Company	1.5%	1,020,368	$99,384,000	—	30 Jun 2021	13F
Delphi Management Partners VIII, L.L.C.	13F	Company	1.5%	1,000,000	$97,400,000	—	30 Jun 2021	13F
Consonance Capital Management LP	13F	Company	1.4%	979,226	$95,377,000	—	30 Jun 2021	13F
MACQUARIE GROUP LTD	13F	Company	1.4%	943,533	$91,901,000	—	30 Jun 2021	13F
JANUS HENDERSON GROUP PLC	13F	Company	1.2%	831,162	$80,955,000	—	30 Jun 2021	13F
GILDER GAGNON HOWE & CO LLC	13F	Company	1.1%	790,567	$77,001,000	—	30 Jun 2021	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.1%	790,005	$76,946,000	—	30 Jun 2021	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	1.1%	781,343	$76,103,000	—	30 Jun 2021	13F
Stephens Investment Management Group LLC	13F	Company	1.1%	778,922	$75,867,000	—	30 Jun 2021	13F
SEI INVESTMENTS CO	13F	Company	1%	717,441	$69,879,000	—	30 Jun 2021	13F
Point72 Asset Management, L.P.	13F	Company	0.98%	678,327	$66,069,000	—	30 Jun 2021	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.89%	614,756	$59,877,000	—	30 Jun 2021	13F
TimesSquare Capital Management, LLC	13F	Company	0.87%	598,200	$58,265,000	—	30 Jun 2021	13F
NORGES BANK	13F	Company	0.85%	586,150	$57,091,000	—	30 Jun 2021	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.81%	561,077	$54,649,000	—	30 Jun 2021	13F
JENNISON ASSOCIATES LLC	13F	Company	0.77%	532,969	$51,911,000	—	30 Jun 2021	13F
First Light Asset Management, LLC	13F	Company	0.77%	528,606	$51,486,000	—	30 Jun 2021	13F
EATON VANCE MANAGEMENT	13F	Company	0.77%	527,583	$51,387,000	—	30 Jun 2021	13F
Amundi	13F	Individual	0.69%	477,514	$46,510,000	—	30 Jun 2021	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.67%	464,090	$45,203,000	—	30 Jun 2021	13F
VOYA INVESTMENT MANAGEMENT LLC	13F	Company	0.67%	462,659	$45,062,000	—	30 Jun 2021	13F
Chicago Capital, LLC	13F	Company	0.66%	457,461	$44,557,000	—	30 Jun 2021	13F
Assenagon Asset Management S.A.	13F	Company	0.58%	399,752	$38,936,000	—	30 Jun 2021	13F
Nuveen Asset Management, LLC	13F	Company	0.58%	397,958	$38,761,000	—	30 Jun 2021	13F
CITADEL ADVISORS LLC	13F	Company	0.58%	397,384	$38,705,000	—	30 Jun 2021	13F
WESTFIELD CAPITAL MANAGEMENT CO LP	13F	Company	0.57%	395,981	$38,569,000	—	30 Jun 2021	13F
WASATCH ADVISORS LP	13F	Company	0.53%	365,783	$35,627,000	—	30 Jun 2021	13F
Mirae Asset Global Investments Co., Ltd.	13F	Company	0.52%	360,020	$35,066,000	—	30 Jun 2021	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.51%	354,045	$34,484,000	—	30 Jun 2021	13F
BAILLIE GIFFORD & CO	13F	Company	0.5%	346,925	$33,790,000	—	30 Jun 2021	13F
Lombard Odier Asset Management (Switzerland) SA	13F	Company	0.45%	309,447	$30,140,000	—	30 Jun 2021	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.44%	302,412	$29,455,000	—	30 Jun 2021	13F
NORTHERN TRUST CORP	13F	Company	0.42%	292,839	$28,522,000	—	30 Jun 2021	13F
MORGAN STANLEY	13F	Company	0.41%	282,827	$27,546,000	—	30 Jun 2021	13F
Man Group plc	13F	Company	0.41%	280,567	$27,327,000	—	30 Jun 2021	13F
UBS Group AG	13F	Company	0.4%	272,626	$26,554,000	—	30 Jun 2021	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.36%	250,985	$24,446,000	—	30 Jun 2021	13F
Bank of New York Mellon Corp	13F	Company	0.35%	242,856	$23,654,000	—	30 Jun 2021	13F

Institutional Holders of TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share (TNDM) as of Q3 2021

As of 30 Sep 2021, TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share (TNDM) was held by 331 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 61,294,210 shares. The largest 10 holders included VANGUARD GROUP INC, FMR LLC, BlackRock Inc., Jackson Square Partners, LLC, Capital World Investors, Invesco Ltd., STATE STREET CORP, Champlain Investment Partners, LLC, BROWN CAPITAL MANAGEMENT LLC, and RTW INVESTMENTS, LP. This page lists 331 institutional shareholders reporting positions in this security for the Q3 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2021 vs Q2 2021 Across Filers

Q2 2021 holders

295

Q3 2021 holders

331

Holder diff

Investor	Q2 2021 Shares	Q3 2021 Shares	Share Diff	Share Chg %	Q2 2021 Value $	Q3 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.