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TNDM · Tandem Diabetes Care Inc · Held by Funds

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$20.07 +2.56 (+14.62%) At close · Nov 13 Play latest call Q3 2026 earnings call transcript
S&P 600 member Russell 2000 member Rebalance outlook locked
Market Cap
$1.40B
Shares
69.79M
Volume · Nov 13 4.4M Avg daily vol (3M) 2.21M

Registered funds — mutual funds, ETFs and closed-end funds — whose latest Form N-PORT portfolio report holds this exact listed security, matched by CUSIP. Each row is one fund position with its size, value and weight in that fund.

Fund Ownership of TNDM by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 28.26% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 4.74% 3,305,914
Index ETFs 23.53% 16,419,859
Active ETFs 0.85% 590,387
Active funds 9.45% 6,596,476
Unclassified 0.38% 261,723
All registered funds 38.94% 27,174,359
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Funds holding TNDM

234 fund positions
Fund Balance Value % of Fund Open
iShares Core S&P Small-Cap ETF 4,129,585 $62,315,438 0.06%
VANGUARD TOTAL STOCK MARKET INDEX FUND 2,186,918 $33,000,593 0.00%
iShares Russell 2000 ETF 1,818,684 $27,443,942 0.03%
VANGUARD SMALL-CAP INDEX FUND 1,570,019 $23,691,587 0.01%
PGIM Jennison Health Sciences Fund 680,031 $14,967,482 1.00%
Fidelity Small Cap Index Fund 763,465 $14,887,568 0.04%
VANGUARD SMALL-CAP GROWTH INDEX FUND 901,467 $13,603,137 0.03%
VANGUARD EXTENDED MARKET INDEX FUND 788,509 $11,898,601 0.01%
Strategic Advisers Fidelity U.S. Total Stock Fund 466,100 $10,258,861 0.00%
iShares Russell 2000 Growth ETF 644,820 $9,730,334 0.06%
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF 627,958 $9,475,886 0.06%
VANGUARD RUSSELL 2000 INDEX FUND 400,060 $8,805,321 0.05%
Fidelity Extended Market Index Fund 335,413 $7,382,440 0.02%
Meridian Growth Fund 483,102 $7,290,009 1.34%
Schwab U.S. Small-Cap ETF 325,404 $7,162,142 0.03%
VANGUARD TAX-MANAGED SMALL-CAP FUND 454,971 $6,865,512 0.06%
Royce Small-Cap Opportunity Fund 423,694 $6,393,542 0.45%
Fidelity Enhanced Small Cap Core ETF 360,810 $5,444,623 0.09%
VANGUARD S&P SMALL-CAP 600 INDEX FUND 246,280 $5,420,623 0.08%
iShares S&P Small-Cap 600 Growth ETF 342,705 $5,171,418 0.06%
SPDR(R) S & P 600 Small Cap ETF 121,511 $4,934,562 0.29%
iShares U.S. Medical Devices ETF 320,911 $4,842,547 0.16%
VANGUARD HEALTH CARE INDEX FUND 208,631 $4,591,968 0.02%
BlackRock Advantage Small Cap Core Fund 202,440 $4,455,704 0.08%
Meridian Small Cap Growth Fund 274,345 $4,139,866 1.52%
AMG GW&K Small/Mid Cap Core Fund 273,478 $4,126,783 0.50%
iShares S&P Small-Cap 600 Value ETF 258,289 $3,897,581 0.05%
AMG GW&K Small Cap Core Fund 258,058 $3,894,095 0.50%
abrdn Healthcare Investors 249,426 $3,763,838 0.28%
Schwab Small-Cap Index Fund 169,004 $3,295,578 0.04%
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF 204,353 $3,083,687 0.06%
JPMorgan Small & Mid Cap Enhanced Equity ETF 202,560 $3,056,630 0.11%
abrdn Healthcare Opportunities Fund 192,312 $2,901,988 0.35%
Fidelity Total Market Index Fund 130,971 $2,882,672 0.00%
Driehaus Micro Cap Growth Fund 188,224 $2,840,300 0.48%
Mercer US Small/Mid Cap Equity Fund 175,126 $2,642,651 0.14%
Invesco RAFI US 1500 Small-Mid ETF 132,924 $2,592,018 0.09%
VANGUARD EXPLORER FUND 132,594 $2,585,583 0.01%
State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF 160,544 $2,422,609 0.05%
Meridian Contrarian Fund 159,000 $2,399,310 0.35%
Fidelity Series Total Market Index Fund 106,565 $2,345,496 0.00%
State Street(R) SPDR(R) S&P(R) Health Care Equipment ETF 152,433 $2,300,214 1.52%
Columbia Small Cap Index Fund 98,255 $2,162,593 0.08%
Adara Smaller Companies Fund 91,507 $2,014,069 0.24%
Master Small Cap Index Series 130,589 $1,970,588 0.03%
Invesco S&P SmallCap 600 Revenue ETF 82,075 $1,806,471 0.09%
Nuveen Small Cap Blend Index Fund 92,444 $1,802,658 0.04%
VANGUARD RUSSELL 2000 GROWTH INDEX FUND 76,407 $1,681,718 0.10%
VANGUARD STRATEGIC EQUITY FUND 109,250 $1,648,583 0.01%
JNL Small Cap Index Fund 107,788 $1,626,521 0.06%
Showing 1–50 of 234 positions
Key facts CIK 1438133 CUSIP 875372203 13F (30d) 215 filings 190 filers Visit website Investor relations