Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in DXCM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 38.2M | $2.58B | -1.8% | 9.911% | 0.04% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 25.2M | $1.70B | +0.8% | 6.533% | 0.04% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 19.7M | $1.32B | +2.3% | 5.094% | 0.06% |
| 4 | STATE STREET CORP | 18.4M | $1.24B | +2.5% | 4.763% | 0.02% |
| 5 | Invesco Ltd. | 15.3M | $1.03B | +89.3% | 3.962% | 0.08% |
| 6 | BAILLIE GIFFORD & CO | 14.8M | $996.9M | -5.1% | 3.836% | 0.90% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 12.4M | $834.2M | +0.7% | 3.220% | 0.04% |
| 8 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | 11.3M | $758.5M | +15.6% | 2.918% | 0.14% |
| 9 | ALLIANCEBERNSTEIN L.P. | 11.7M | $734.3M | -9.5% | 3.030% | 0.24% |
| 10 | WELLINGTON MANAGEMENT GROUP LLP | 8.5M | $574.3M | -8.6% | 2.210% | 0.10% |
| 11 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 6.9M | $462.9M | +170.1% | 1.781% | 0.21% |
| 12 | NORGES BANK | 6.9M | $462.6M | β | 1.780% | 0.05% |
| 13 | UBS Group AG | 6.8M | $455.6M | +26.7% | 1.753% | 0.06% |
| 14 | Amundi | 5.6M | $377.4M | -11.5% | 1.452% | 0.09% |
| 15 | MORGAN STANLEY | 5.2M | $347.3M | +2.3% | 1.336% | 0.02% |
| 16 | AMERIPRISE FINANCIAL INC | 4.8M | $324.7M | +13.7% | 1.249% | 0.07% |
| 17 | GOLDMAN SACHS GROUP INC | 4.1M | $276.7M | +12.0% | 1.065% | 0.02% |
| 18 | Castle Hook Partners LP | 3.9M | $260.7M | +382.7% | 1.003% | 1.20% |
| 19 | FRANKLIN RESOURCES INC | 3.6M | $242.2M | +37.9% | 0.932% | 0.05% |
| 20 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 3.6M | $240.9M | +84.1% | 0.923% | 0.08% |
| 21 | CIBC Bancorp USA Inc. | 3.5M | $233.0M | -18.1% | 0.895% | 0.28% |
| 22 | JPMORGAN CHASE & CO | 3.3M | $232.7M | -44.6% | 0.862% | 0.01% |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.4M | $231.6M | +8.3% | 0.891% | 0.03% |
| 24 | NORTHERN TRUST CORP | 3.3M | $221.9M | -3.8% | 0.854% | 0.03% |
| 25 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3.3M | $219.9M | +67.1% | 0.846% | 0.02% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in DXCM β a direct measure of their conviction.
Filings activity in DXCM during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 980 | +2.1% | 102.40% | +7.85 pp | $25.78B | +13% |
| Q1 2026 | 960 | +5.8% | 94.55% | 0.55 pp | $22.75B | 5.4% |
| Q4 2025 | 907 | +1.2% | 95.10% | 17.30 pp | $24.05B | 3.6% |
| Q3 2025 | 896 | 2.7% | 112.40% | +19.68 pp | $24.96B | 20% |
| Q2 2025 | 921 | +2.3% | 92.72% | +2.78 pp | $31.06B | +30% |
| Q1 2025 | 900 | 1.2% | 89.94% | +2.58 pp | $23.86B | 9.3% |
| Q4 2024 | 911 | +6.7% | 87.36% | 1.86 pp | $26.30B | +15% |
| Q3 2024 | 854 | β | 89.22% | β | $22.89B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying DXCM stock.
Based on Q2 2026 13F filings, institutional ownership of DexCom, Inc. stands at 102.4%, held across 980 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of DXCM, with approximately 38,244,137 shares worth $2.58B as of Q2 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of DXCM, including SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for DXCM is 60 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
108 institutions opened new positions in DXCM during Q2 2026, while 98 fully exited. 637 added to existing positions and 204 trimmed.
DXCM institutional ownership rose by 7.85 percentage points quarter-over-quarter, with a net change of +20 holders.
The top 10 institutions account for 45.6% of all reported 13F value in DXCM, and the top 25 account for 63.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
DexCom, Inc. (DXCM) Institutional Ownership