Dexcom: which funds bought and sold
Institutions that bought and sold Dexcom shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 504 institutions that filed 13F reports for both quarters added to or opened positions in Dexcom, and 443 cut or closed them. Together they added a net 9.9M shares, +2.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.1M shares (+1.3%); index fund managers were net buyers of 459K shares (+0.4%). 109 opened a new position and 100 sold out entirely.
Bought, Q2 2026 504 institutions, 109 of them new holders Sold, Q2 2026 443 institutions, 100 of them sold out
Net change, all compared +9.9M shares (+2.7%)
Net change, active managers +1.1M shares (+1.3%), 41 bought, 45 sold
Buyers versus sellers
504 bought 105 443 sold
Active managers and hedge funds 41 bought · 45 sold · +1.1M
Index fund managers 7 bought · 5 sold · +459K
Other institutions 456 bought · 393 sold · +8.4M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Arrowstreet Capital, Limited Partnership Hedge fund | +4.3M +170.1% | 6.9M | $463M |
| Castle Hook Partners LP Hedge fund | +3.1M +382.7% | 3.9M | $261M |
| UBS Group AG | +1.7M +39.4% | 6.1M | $409M |
| Massachusetts Financial Services Co Active manager | +1.6M +84.1% | 3.6M | $241M |
| Invesco Ltd. | +1.6M +11.8% | 15.3M | $1B |
| UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC | +1.5M +15.6% | 11.3M | $758M |
| Pacer Advisors, Inc. | +1.5M +4290.6% | 1.5M | $101M |
| Nomura Holdings Inc | +1.4M +499.7% | 1.7M | $115M |
| Nearwater Capital Markets, Ltd | +1.3M New position | 1.3M | $84.2M |
| AQR Capital Management LLC Hedge fund | +1.1M +49.0% | 3.2M | $218M |
| Franklin Resources Inc Active manager | +988K +37.9% | 3.6M | $242M |
| Swedbank AB | +967K +484.4% | 1.2M | $78.5M |
| Price T Rowe Associates Inc Active manager | +793K +54.9% | 2.2M | $151M |
| Healthcare Of Ontario Pension Plan Trust Fund | +767K +504.3% | 919K | $61.9M |
| Goldman Sachs Group Inc | +715K +23.5% | 3.8M | $253M |
| Smith Group Asset Management, LLC | +701K New position | 701K | $47.2M |
| BNP Paribas Financial Markets | +668K +41.7% | 2.3M | $153M |
| Susquehanna International Group, LLP | +665K +175.6% | 1.0M | $70.3M |
| Capitolis Liquid Global Markets LLC | +665K New position | 665K | $44.8M |
| Capital International Investors Active manager | +662K New position | 662K | $44.6M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Arrowstreet Capital, Limited Partnership Hedge fund | +4.3M +170.1% | 6.9M | $463M |
| Castle Hook Partners LP Hedge fund | +3.1M +382.7% | 3.9M | $261M |
| Massachusetts Financial Services Co Active manager | +1.6M +84.1% | 3.6M | $241M |
| AQR Capital Management LLC Hedge fund | +1.1M +49.0% | 3.2M | $218M |
| Franklin Resources Inc Active manager | +988K +37.9% | 3.6M | $242M |
| Price T Rowe Associates Inc Active manager | +793K +54.9% | 2.2M | $151M |
| Capital International Investors Active manager | +662K New position | 662K | $44.6M |
| Marshall Wace, LLP Hedge fund | +465K +681.1% | 533K | $35.9M |
| Champlain Investment Partners, LLC Active manager | +269K New position | 269K | $18.1M |
| Bridgewater Associates, LP Hedge fund | +261K +187.0% | 401K | $27M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Jpmorgan Chase & Co | −2.7M −44.6% | 3.3M | $233M |
| Capital World Investors Active manager | −1.4M Sold out | 0 | — |
| Toronto Dominion Bank | −1.3M −52.5% | 1.2M | $78.9M |
| SG Americas Securities, LLC | −1.2M −60.3% | 819K | $55.2M |
| Alliancebernstein L.P. Active manager | −1.2M −9.5% | 11.7M | $734M |
| Millennium Management LLC Hedge fund | −1.2M −75.6% | 395K | $26.6M |
| Squarepoint Ops LLC Hedge fund | −1.1M −98.4% | 18K | $1.2M |
| Two Sigma Investments, LP Hedge fund | −1.1M −95.8% | 47K | $3.1M |
| Jennison Associates LLC Active manager | −1.0M Sold out | 0 | — |
| Mackenzie Financial Corp | −1.0M −83.6% | 197K | $13.3M |
| Neuberger Berman Group LLC Active manager | −993K −57.4% | 736K | $49.6M |
| Deutsche Bank Ag\ | −957K −28.2% | 2.4M | $164M |
| Citadel Advisors LLC Hedge fund | −880K −42.1% | 1.2M | $81.6M |
| National Bank Of Canada | −805K −43.1% | 1.1M | $71.8M |
| Mizuho Markets Americas LLC | −800K Sold out | 0 | — |
| Wellington Management Group LLP Active manager | −799K −8.6% | 8.5M | $574M |
| Baillie Gifford & Co Active manager | −798K −5.1% | 14.8M | $997M |
| CIBC Bancorp Usa Inc. | −762K −18.1% | 3.5M | $233M |
| Amundi | −729K −11.5% | 5.6M | $377M |
| Blackrock, Inc. Index funds | −720K −1.8% | 38.2M | $2.6B |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Capital World Investors Active manager | −1.4M Sold out | 0 | — |
| Alliancebernstein L.P. Active manager | −1.2M −9.5% | 11.7M | $734M |
| Millennium Management LLC Hedge fund | −1.2M −75.6% | 395K | $26.6M |
| Squarepoint Ops LLC Hedge fund | −1.1M −98.4% | 18K | $1.2M |
| Two Sigma Investments, LP Hedge fund | −1.1M −95.8% | 47K | $3.1M |
| Jennison Associates LLC Active manager | −1.0M Sold out | 0 | — |
| Neuberger Berman Group LLC Active manager | −993K −57.4% | 736K | $49.6M |
| Citadel Advisors LLC Hedge fund | −880K −42.1% | 1.2M | $81.6M |
| Wellington Management Group LLP Active manager | −799K −8.6% | 8.5M | $574M |
| Baillie Gifford & Co Active manager | −798K −5.1% | 14.8M | $997M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Nearwater Capital Markets, Ltd | 1.3M | $84.2M |
| Smith Group Asset Management, LLC | 701K | $47.2M |
| Capitolis Liquid Global Markets LLC | 665K | $44.8M |
| Capital International InvestorsActive manager | 662K | $44.6M |
| Blue Sparrow, LLC | 481K | $32.4M |
| Provident Investment Management, Inc. | 382K | $25.7M |
| Champlain Investment Partners, LLCActive manager | 269K | $18.1M |
| Zurich Insurance Group Ltd | 254K | $17.1M |
| Primecap Management CoActive manager | 192K | $12.9M |
| Rhenman & Partners Asset Management AB | 160K | $10.8M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Capital World InvestorsActive manager | 1.4M | $86.9M |
| Jennison Associates LLCActive manager | 1.0M | $65.8M |
| Mizuho Markets Americas LLC | 800K | $50.2M |
| Balyasny Asset Management L.P.Hedge fund | 566K | $35.6M |
| Defilade Capital Management, L.P. | 539K | $33.8M |
| Sofinnova Investments, Inc. | 394K | $24.7M |
| Integral Health Asset Management, LLC | 175K | $11M |
| Pfm Health Sciences, LPHedge fund | 150K | $9.4M |
| Soleus Capital Management, L.P.Hedge fund | 140K | $8.8M |
| Meridiem Capital Partners LP | 118K | $7.4M |
Who holds the shares
- Institutions reporting
- 968
- Ten largest holders
- 45.4% of 13F-reported shares
- Index fund managers
- 32.2% of 13F-reported shares
- Active managers and hedge funds
- 21.1% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 41 | 45 | 5 | 10 | +1.1M | +1.3% |
| Index fund managers | 7 | 5 | 0 | 0 | +459K | +0.4% |
| Other institutions | 456 | 393 | 104 | 90 | +8.4M | +5.1% |