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

CUSIP 875372203 is the security identifier for TNDM - TANDEM DIABETES CARE INC - Common Stock used to aggregate holder disclosures.

How many institutions held TNDM - TANDEM DIABETES CARE INC - Common Stock in Q1 2018?

72 institutional investors reported TNDM - TANDEM DIABETES CARE INC - Common Stock for Q1 2018. Use the holders table for investor-level position and value details.

TANDEM DIABETES CARE INC - Common Stock (TNDM)

CUSIP: 875372203

Q1 2018 13F Holders as of 31 Mar 2018

Type / Class: Equity / Common Stock
Shares outstanding: 67,833,122
Total 13F shares: 21,326,200
Share change: +17,417,114
Total reported value: $105,775,575
Price per share: $4.96
Number of holders: 72
Value change: +$86,906,889
Number of buys: 59
Number of sells: 10

Quarterly Holders Quick Answers

What is CUSIP 875372203?
CUSIP 875372203 identifies TNDM - TANDEM DIABETES CARE INC - Common Stock in SEC institutional holdings data.

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Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
Back to full security ownership history.

Explore More Reporting Periods

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

Newer quarter: Q2 2018
Previous quarter: Q4 2017

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 (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
FRONTIER CAPITAL MANAGEMENT CO LLC	13F	Company	0.7%	472,555	$1,115,000	—	31 Dec 2017	13F
WASATCH ADVISORS LP	13F	Company	0.41%	278,567	$657,000	—	31 Dec 2017	13F
TPG Group Holdings (SBS) Advisors, Inc.	13F	Company	0.37%	249,620	$589,000	—	31 Dec 2017	13F
Alyeska Investment Group, L.P.	13F	Company	0.21%	139,196	$329,000	—	31 Dec 2017	13F
VANGUARD GROUP INC	13F	Company	0.16%	106,487	$251,000	—	31 Dec 2017	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.12%	78,886	$186,000	—	31 Dec 2017	13F
BlackRock Finance, Inc.	13F	Company	0.06%	41,962	$99,000	—	31 Dec 2017	13F
UBS Group AG	13F	Company	0.06%	38,022	$90,000	—	31 Dec 2017	13F
Ausdal Financial Partners, Inc.	13F	Company	0.04%	29,650	$70,000	—	31 Dec 2017	13F
WEDBUSH SECURITIES INC	13F	Company	0.04%	29,509	$70,000	—	31 Dec 2017	13F
SABBY MANAGEMENT, LLC	13F	Company	0.04%	27,487	$65,000	—	31 Dec 2017	13F
Virtu Financial LLC	13F	Company	0.04%	27,308	$64,000	—	31 Dec 2017	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.04%	26,850	$63,000	—	31 Dec 2017	13F
BARCLAYS PLC	13F	Company	0.04%	26,800	$63,000	—	31 Dec 2017	13F
KEYBANK NATIONAL ASSOCIATION/OH	13F	Company	0.03%	21,353	$50,000	—	31 Dec 2017	13F
Creative Planning	13F	Company	0.03%	18,000	$42,000	—	31 Dec 2017	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.03%	16,996	$40,000	—	31 Dec 2017	13F
A.R.T. Advisors, LLC	13F	Company	0.01%	10,019	$23,000	—	31 Dec 2017	13F
Tarbox Family Office, Inc.	13F	Company	0.01%	5,970	$14,000	—	31 Dec 2017	13F
FIRST MERCANTILE TRUST CO	13F	Company	0.01%	3,897	$9,000	—	31 Dec 2017	13F
GROUP ONE TRADING LLC	13F	Company	0%	3,046	$7,000	—	31 Dec 2017	13F
PIPER SANDLER & CO.	13F	Company	0%	2,523	$6,000	—	31 Dec 2017	13F
Cutler Group LLC / CA	13F	Company	0%	1,600	$3,000	—	31 Dec 2017	13F
CITIGROUP INC	13F	Company	0%	1,000	$2,000	—	31 Dec 2017	13F
MEEDER ASSET MANAGEMENT INC	13F	Company	0%	866	$2,000	—	31 Dec 2017	13F
Advisory Services Network, LLC	13F	Company	0%	460	$1,000	—	31 Dec 2017	13F
Gradient Investments LLC	13F	Company	0%	400	$1,000	—	31 Dec 2017	13F
LADENBURG THALMANN FINANCIAL SERVICES INC.	13F	Company	0%	400	$1,000	—	31 Dec 2017	13F
FEDERATED HERMES, INC.	13F	Company	0%	315	$1,000	—	31 Dec 2017	13F
ROPES WEALTH ADVISORS LLC	13F	Company	0%	300	$1,000	—	31 Dec 2017	13F
IHT Wealth Management, LLC	13F	Company	0%	200	$1,000	—	31 Dec 2017	13F
BNP PARIBAS FINANCIAL MARKETS	13F	Company	0%	3	$7	—	31 Dec 2017	13F

Institutional Holders of TANDEM DIABETES CARE INC - Common Stock (TNDM) as of Q1 2018

As of 31 Mar 2018, TANDEM DIABETES CARE INC - Common Stock (TNDM) was held by 72 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 21,326,200 shares. The largest 10 holders included First Light Asset Management, LLC, FRONTIER CAPITAL MANAGEMENT CO LLC, FEDERATED INVESTORS INC /PA/, VANGUARD GROUP INC, ACUTA CAPITAL PARTNERS, LLC, Schonfeld Strategic Advisors LLC, WASATCH ADVISORS INC, MILLENNIUM MANAGEMENT LLC, venBio Select Advisor LLC, and Millrace Asset Group, Inc.. This page lists 72 institutional shareholders reporting positions in this security for the Q1 2018 filing period.

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

Compare Q1 2018 vs Q4 2017 Across Filers

Q4 2017 holders

Q1 2018 holders

Holder diff

Investor	Q4 2017 Shares	Q1 2018 Shares	Share Diff	Share Chg %	Q4 2017 Value $	Q1 2018 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.