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As of the latest SEC filings, TANDEM DIABETES CARE INC (TNDM) is held by 222 institutional funds. The largest fund shareholder is iShares Core S&P Small-Cap ETF (IJR), holding an estimated $78,003,113.40 in market value, representing 0.08% of its portfolio.

Funds holding TANDEM DIABETES CARE INC (TNDM)

Source: SEC Form N-PORT institutional portfolio disclosures

Ticker:
TNDM
CIK:
0001438133
Showing top 25 of 222 institutional funds
Fund Type Manager Weight Market Value Shares
Report Date
Filing Date
IJR
iShares Core S&P Small-Cap ETF
ETF BlackRock / iShares 0.08% $78,003,113.40 4,069,020 Mar 31, 2026 May 26, 2026
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
ETF Vanguard 0.00% $41,368,879.17 2,158,001 Mar 31, 2026 May 28, 2026
IWM
iShares Russell 2000 ETF
ETF BlackRock / iShares 0.04% $31,802,972.49 1,658,997 Mar 31, 2026 May 28, 2026
NAESX
VANGUARD SMALL-CAP INDEX FUND
ETF Vanguard 0.02% $30,180,097.80 1,574,340 Mar 31, 2026 May 28, 2026
VEXPX
VANGUARD EXPLORER FUND
MF Vanguard 0.10% $22,611,219.13 1,158,065 Apr 30, 2026 Jun 26, 2026
VISGX
VANGUARD SMALL-CAP GROWTH INDEX FUND
ETF Vanguard 0.04% $16,852,787.91 879,123 Mar 31, 2026 May 28, 2026
VEMPX
VANGUARD EXTENDED MARKET INDEX FUND
ETF Vanguard 0.02% $14,506,955.01 756,753 Mar 31, 2026 May 28, 2026
FSSNX
Fidelity Small Cap Index Fund
MF Fidelity 0.04% $13,095,261.30 670,692 Apr 30, 2026 Jun 26, 2026
PHLQX
PGIM Jennison Health Sciences Fund
MF PGIM / Prudential 0.86% $12,556,288.80 496,296 Feb 27, 2026 Apr 23, 2026
FCTDX
Strategic Advisers Fidelity U.S. Total Stock Fund
MF Fidelity 0.01% $12,065,570.00 476,900 Feb 28, 2026 Apr 24, 2026
SPSM
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
ETF State Street (SPDR) 0.09% $11,868,089.49 619,097 Mar 31, 2026 May 28, 2026
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SMALL COMPANY GROWTH PORTFOLIO
ETF Vanguard 0.85% $11,623,096.89 606,317 Mar 31, 2026 May 28, 2026
IWO
iShares Russell 2000 Growth ETF
ETF BlackRock / iShares 0.09% $10,621,943.64 554,092 Mar 31, 2026 May 28, 2026
MRAGX
Meridian Growth Fund
MF Independent / Boutique 1.95% $9,519,285.24 496,572 Mar 31, 2026 Jun 1, 2026
VTSIX
VANGUARD TAX-MANAGED SMALL-CAP FUND
MF Vanguard 0.09% $8,721,794.07 454,971 Mar 31, 2026 May 28, 2026
VTWO
VANGUARD RUSSELL 2000 INDEX FUND
ETF Vanguard 0.06% $8,500,875.90 336,003 Feb 28, 2026 Apr 28, 2026
SCHA
Schwab U.S. Small-Cap ETF
ETF Charles Schwab 0.04% $8,288,786.00 327,620 Feb 28, 2026 Apr 24, 2026
FSMAX
Fidelity Extended Market Index Fund
MF Fidelity 0.02% $8,015,621.90 316,823 Feb 28, 2026 Apr 24, 2026
ROFRX
Royce Small-Cap Opportunity Fund
MF Independent / Boutique 0.61% $6,881,953.32 358,996 Mar 31, 2026 May 21, 2026
IJT
iShares S&P Small-Cap 600 Growth ETF
ETF BlackRock / iShares 0.10% $6,272,539.02 327,206 Mar 31, 2026 May 28, 2026
VIOO
VANGUARD S&P SMALL-CAP 600 INDEX FUND
ETF Vanguard 0.11% $5,888,397.90 232,743 Feb 28, 2026 Apr 28, 2026
IHI
iShares U.S. Medical Devices ETF
ETF BlackRock / iShares 0.18% $5,589,492.75 291,575 Mar 31, 2026 May 22, 2026
IJS
iShares S&P Small-Cap 600 Value ETF
ETF BlackRock / iShares 0.07% $5,569,632.63 290,539 Mar 31, 2026 May 26, 2026
HQH
abrdn Healthcare Investors
CEF abrdn / Aberdeen 0.49% $5,525,963.37 288,261 Mar 31, 2026 May 29, 2026
GWGVX
AMG GW&K Small/Mid Cap Core Fund
MF Independent / Boutique 0.76% $5,480,453.79 285,887 Mar 31, 2026 Jun 1, 2026
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