DaveManuel.com · Institutional Ownership · Who Owns It
DEXCOM INC (DXCM)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
985
Reporting holders
$26.7B
Reported value
102.5%
Of shares outstanding
1.2%
Calls
1.3%
Puts
+16
Holder change
Institutions report 386,804,854 shares against 377,360,765 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $2.6B | 38,244,137 | 0.04% | 8q | -1.8%-$48.5M |
| VANGUARD CAPITAL MANAGEMENT LLC | $1.7B | 25,209,752 | 0.04% | 2q | +0.8%+$12.7M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $1.3B | 19,656,540 | 0.06% | 2q | +2.3%+$29.4M |
| STATE STREET CORP | $1.2B | 18,380,806 | 0.04% | 31q | +2.5%+$30.0M |
| Invesco Ltd. | $1.0B | 15,288,133 | 0.08% | 31q | +11.8%+$108.8M |
| BAILLIE GIFFORD & CO | $996.9M | 14,801,590 | 0.90% | 31q | -5.1%-$53.7M |
| GEODE CAPITAL MANAGEMENT, LLC | $834.2M | 12,426,515 | 0.04% | 31q | +0.6%+$5.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $758.5M | 11,261,876 | 0.14% | 31q | +15.6%+$102.1M |
| ALLIANCEBERNSTEIN L.P. | $734.3M | 11,693,409 | 0.24% | 31q | -9.5%-$77.3M |
| WELLINGTON MANAGEMENT GROUP LLP | $574.3M | 8,527,471 | 0.10% | 31q | -8.6%-$53.8M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $462.9M | 6,873,273 | 0.21% | 9q | +170.1%+$291.5M |
| NORGES BANK | $462.6M | 6,868,090 | 0.05% | 32q | -5.7%-$27.9M |
| UBS Group AG | $455.6M incl. $47.0M options CALL+PUT | 6,065,779 | 0.06% | 31q | +39.4%+$128.9M |
| Amundi | $377.4M | 5,603,490 | 0.09% | 21q | -11.5%-$49.1M |
| MORGAN STANLEY | $347.3M | 5,156,282 | 0.02% | 35q | +2.3%+$7.7M |
| AMERIPRISE FINANCIAL INC | $324.7M | 4,820,775 | 0.07% | 31q | +13.7%+$39.1M |
| GOLDMAN SACHS GROUP INC | $276.7M incl. $23.5M options CALL+PUT | 3,758,616 | 0.02% | 31q | +23.5%+$52.6M |
| Castle Hook Partners LP | $260.7M | 3,870,342 | 1.20% | 4q | +382.7%+$206.7M |
| FRANKLIN RESOURCES INC | $242.2M | 3,595,893 | 0.05% | 31q | +37.9%+$66.6M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $240.9M | 3,560,621 | 0.08% | 11q | +84.1%+$110.0M |
| CIBC Bancorp USA Inc. | $233.0M | 3,454,735 | 0.28% | 3q | -18.1%-$51.4M |
| JPMORGAN CHASE & CO | $232.7M | 3,325,095 | 0.01% | 31q | -44.6%-$187.2M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $231.6M | 3,439,164 | 0.03% | 31q | +8.3%+$17.8M |
| NORTHERN TRUST CORP | $221.9M | 3,295,144 | 0.03% | 31q | -3.8%-$8.7M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $219.9M incl. $149.6M options CALL+PUT | 1,043,864 | 0.02% | 31q | +175.6%+$140.1M |
| AQR CAPITAL MANAGEMENT LLC | $218.1M | 3,237,720 | 0.08% | 31q | +49.0%+$71.7M |
| BANK OF AMERICA CORP /DE/ | $213.1M | 3,163,604 | 0.01% | 31q | +7.8%+$15.5M |
| RAYMOND JAMES FINANCIAL INC | $208.3M incl. $300.0K options CALL | 3,087,990 | 0.06% | 7q | +11.0%+$20.6M |
| AMERICAN CENTURY COMPANIES INC | $206.9M | 3,071,423 | 0.09% | 31q | +4.3%+$8.5M |
| CITADEL ADVISORS LLC | $185.9M incl. $104.3M options CALL+PUT | 1,211,767 | 0.02% | 31q | -42.1%-$135.0M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $183.9M | 2,729,905 | 0.18% | 31q | +10.7%+$17.7M |
| Legal & General Group Plc | $173.2M | 2,572,193 | 0.04% | 31q | -1.4%-$2.5M |
| HSBC HOLDINGS PLC | $167.6M incl. $85.6M options CALL+PUT | 1,208,920 | 0.07% | 31q | +3.6%+$5.9M |
| DEUTSCHE BANK AG\ | $164.0M | 2,435,559 | 0.05% | 34q | -28.2%-$64.5M |
| ROYAL BANK OF CANADA | $155.9M incl. $18.9M options CALL | 2,034,290 | 0.02% | 31q | +3.0%+$4.6M |
| Bank of New York Mellon Corp | $155.6M | 2,309,648 | 0.03% | 31q | +7.8%+$11.2M |
| BNP PARIBAS FINANCIAL MARKETS | $153.3M incl. $505.1K options PUT | 2,268,607 | 0.05% | 15q | +41.7%+$45.1M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $150.8M | 2,238,713 | 0.02% | 31q | +54.9%+$53.4M |
| VANGUARD FIDUCIARY TRUST CO | $149.3M | 2,217,179 | 0.03% | 2q | HELD |
| Employees Provident Fund Board | $147.5M | 2,190,029 | 0.85% | 13q | HELD |
| DIMENSIONAL FUND ADVISORS LP | $142.2M | 2,109,812 | 0.03% | 31q | +11.3%+$14.4M |
| FMR LLC | $127.5M | 1,893,246 | 0.01% | 31q | +13.2%+$14.8M |
| Nuveen, LLC | $123.3M | 1,830,235 | 0.03% | 6q | +6.1%+$7.1M |
| JANE STREET GROUP, LLC | $122.7M incl. $72.1M options CALL+PUT | 750,473 | 0.01% | 31q | +1.2%+$1.4M |
| NOMURA HOLDINGS INC | $115.1M | 1,709,370 | 0.13% | 11q | +499.7%+$95.9M |
| BLAIR WILLIAM & CO/IL | $112.2M | 1,665,665 | 0.29% | 31q | -13.6%-$17.6M |
| RENAISSANCE TECHNOLOGIES LLC | $109.8M | 1,630,796 | 0.15% | 11q | +3.0%+$3.2M |
| Pacer Advisors, Inc. | $100.6M | 1,493,885 | 0.26% | 25q | +4290.6%+$98.3M |
| Assenagon Asset Management S.A. | $93.4M | 1,387,270 | 0.06% | 23q | -19.3%-$22.4M |
| VICTORY CAPITAL MANAGEMENT INC | $92.1M | 1,367,932 | 0.05% | 31q | +12.4%+$10.2M |
| DSM CAPITAL PARTNERS LLC | $91.5M | 1,359,135 | 1.57% | 6q | -29.4%-$38.0M |
| Mitsubishi UFJ Asset Management Co., Ltd. | $89.9M | 1,335,411 | 0.05% | 31q | +7.2%+$6.0M |
| CI INVESTMENTS INC. | $86.7M | 1,287,663 | 0.28% | 28q | +47.6%+$28.0M |
| BANK OF NOVA SCOTIA | $85.3M | 1,266,285 | 0.13% | 25q | +42.7%+$25.5M |
| DNB Asset Management AS | $84.5M | 1,255,284 | 0.24% | 25q | +6.9%+$5.5M |
| Nearwater Capital Markets, Ltd | $84.2M | 1,250,000 | 1.45% | new | NEW |
| CITIGROUP INC | $82.3M incl. $17.8M options CALL+PUT | 956,398 | 0.03% | 31q | +14.7%+$10.5M |
| Stephens Investment Management Group LLC | $81.1M | 1,204,553 | 0.87% | 31q | +12.1%+$8.8M |
| TORONTO DOMINION BANK | $78.9M | 1,171,697 | 0.09% | 31q | -52.5%-$87.1M |
| Swedbank AB | $78.5M | 1,166,132 | 0.07% | 21q | +484.4%+$65.1M |
| Thrivent Financial for Lutherans | $77.8M | 1,155,856 | 0.13% | 31q | +8.3%+$6.0M |
| Jupiter Topco LLC | $76.7M | 1,138,783 | 0.03% | new | FIRST |
| Intermede Investment Partners Ltd | $74.9M | 818,840 | 3.15% | 3q | -4.6%-$3.6M |
| FIRST TRUST ADVISORS LP | $74.8M | 1,111,188 | 0.04% | 31q | +15.9%+$10.3M |
| Swiss National Bank | $73.1M | 1,085,500 | 0.04% | 31q | -5.2%-$4.0M |
| NATIONAL BANK OF CANADA /FI/ | $71.8M | 1,065,517 | 0.05% | 19q | -43.1%-$54.2M |
| CANADA PENSION PLAN INVESTMENT BOARD | $71.0M | 1,054,792 | 0.04% | 31q | +27.7%+$15.4M |
| WELLS FARGO & COMPANY/MN | $68.1M | 1,011,869 | 0.01% | 31q | +19.6%+$11.2M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $67.3M | 999,900 | 0.09% | 26q | -40.0%-$44.9M |
| BARCLAYS PLC | $67.3M | 999,563 | 0.01% | 31q | -11.1%-$8.4M |
| Russell Investments Group, Ltd. | $65.6M | 973,800 | 0.06% | 31q | -1.0%-$645.3K |
| Sumitomo Mitsui Trust Group, Inc. | $64.5M | 957,366 | 0.04% | 31q | +5.3%+$3.3M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $61.9M | 918,568 | 0.09% | 11q | +504.3%+$51.6M |
| PRINCIPAL FINANCIAL GROUP INC | $59.0M | 876,681 | 0.03% | 31q | +16.0%+$8.2M |
| Chicago Capital, LLC | $58.4M | 867,009 | 1.41% | 31q | +17.5%+$8.7M |
| Fisher Funds Management LTD | $56.6M | 840,950 | 1.61% | 7q | -7.6%-$4.7M |
| Allianz Asset Management GmbH | $56.3M | 835,582 | 0.05% | 40q | +2.0%+$1.1M |
| Vanguard Global Advisers, LLC | $56.1M | 833,079 | 0.03% | 2q | -1.1%-$643.8K |
| SG Americas Securities, LLC | $55.6M incl. $399.0K options CALL | 818,912 | 0.03% | 26q | -60.3%-$84.6M |
| Bellevue Group AG | $55.4M | 822,489 | 1.17% | 31q | +4.3%+$2.3M |
| Tri Locum Partners LP | $55.3M | 820,479 | 6.80% | 3q | +17.5%+$8.2M |
| Walleye Trading LLC | $53.9M incl. $50.4M options CALL+PUT | 51,904 | 0.06% | 31q | -24.0%-$17.0M |
| DekaBank Deutsche Girozentrale | $53.0M | 850,305 | 0.09% | 29q | HELD |
| RHUMBLINE ADVISERS | $51.7M | 768,165 | 0.04% | 31q | -0.6%-$295.8K |
| ENVESTNET ASSET MANAGEMENT INC | $51.2M | 759,743 | 0.01% | 31q | -6.8%-$3.8M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $50.5M | 750,088 | 0.08% | 2q | +30.8%+$11.9M |
| VANGUARD ASSET MANAGEMENT, Ltd | $50.0M | 741,928 | 0.03% | 2q | +10.7%+$4.8M |
| NEUBERGER BERMAN GROUP LLC | $49.6M | 736,024 | 0.03% | 31q | -57.4%-$66.9M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | $48.1M | 713,933 | 0.04% | 24q | -10.7%-$5.8M |
| Smith Group Asset Management, LLC | $47.2M | 701,347 | 1.92% | new | NEW |
| CAPITOLIS LIQUID GLOBAL MARKETS LLC | $44.8M | 664,600 | 0.19% | new | NEW |
| PEREGRINE CAPITAL MANAGEMENT LLC | $44.8M | 664,581 | 1.45% | 31q | +7.8%+$3.2M |
| Capital International Investors | $44.6M | 661,999 | 0.01% | new | NEW |
| CAPITAL FUND MANAGEMENT S.A. | $44.5M | 661,379 | 0.20% | 17q | +24.2%+$8.7M |
| Pictet Asset Management Holding SA | $44.5M | 661,238 | 0.04% | 12q | -12.6%-$6.4M |
| National Pension Service | $44.5M | 660,309 | 0.03% | 29q | +3.9%+$1.7M |
| California Public Employees Retirement System | $43.0M | 638,291 | 0.02% | 31q | HELD |
| Korea Investment CORP | $42.6M | 632,639 | 0.08% | 31q | -9.5%-$4.5M |
| ING GROEP NV | $41.3M | 613,727 | 0.20% | 9q | -19.9%-$10.3M |
| Susquehanna Portfolio Strategies, LLC | $41.2M | 612,127 | 0.66% | 3q | +16.5%+$5.8M |
Showing the largest 100 of 986 reported holders. The count of 985 above leaves out 1 position whose reported value failed our price check; it is listed here as filed.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-14 | 2026-09-10 | Directors or officers departed or appointed | filing |
| 2026-09-10 | 2026-09-10 | Directors or officers departed or appointed | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | SAYER KEVIN R | Executive Chair | Sold | 26,756 | $2.4M ×3 |
| 2026-07-20 | SAYER KEVIN R | Executive Chair | Sold | 26,756 | $2.0M |
| 2026-05-21 | SAYER KEVIN R | Executive Chair | Sold | 26,759 | $1.9M |
| 2026-07-06 | SAYER KEVIN R | Executive Chair | Sold | 26,756 | $1.9M |
| 2026-09-15 | AUGUSTINOS NICHOLAS | Director | Sold | 6,539 | $549.5K |
| 2026-06-04 | Coleman Jon | EVP, Chief Commercial Officer | Sold | 4,911 | $364.1K |
| 2026-06-03 | Coleman Jon | EVP, Chief Commercial Officer | Sold | 4,912 | $358.6K |
| 2026-09-10 | Sylvain Jereme M | EVP, Chief Financal Officer | Sold | 3,638 | $302.9K |
| 2026-06-15 | FOLETTA MARK G | Director | Sold | 4,000 | $296.5K ×2 |
| 2026-08-27 | Stern Sadie | EVP Chief People & Culture Off | Sold | 2,565 | $226.7K |
| 2026-09-28 | Stern Sadie | EVP Chief People & Culture Off | Sold | 2,565 | $221.0K |
| 2026-10-27 | Stern Sadie | EVP Chief People & Culture Off | Sold | 2,565 | $201.7K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 336 | $1.2B | 14,121,106 | 60 | 102 | 105 | 0.0% |
| Q2 2026 | 985 | $26.7B | 386,804,854 | 114 | 385 | 334 | 2.5% |
| Q1 2026 | 969 | $23.9B | 371,547,825 | 131 | 358 | 320 | 2.1% |
| Q4 2025 | 931 | $26.0B | 374,749,918 | 117 | 346 | 306 | 3.9% |
| Q3 2025 | 917 | $26.0B | 370,980,132 | 104 | 321 | 321 | 3.9% |
| Q2 2025 | 949 | $33.1B | 368,154,335 | 115 | 325 | 345 | 3.1% |
| Q1 2025 | 942 | $25.6B | 364,950,340 | 93 | 364 | 298 | 2.9% |
| Q4 2024 | 964 | $29.3B | 361,323,423 | 134 | 324 | 330 | 4.2% |
| Q3 2024 | 901 | $25.3B | 364,192,940 | 96 | 318 | 351 | 3.3% |
| Q2 2024 | 1,007 | $44.5B | 383,438,397 | 92 | 425 | 291 | 2.4% |
| Q1 2024 | 1,050 | $54.8B | 385,073,212 | 147 | 377 | 332 | 2.7% |
| Q4 2023 | 989 | $50.4B | 390,629,472 | 140 | 312 | 353 | 3.8% |
| Q3 2023 | 910 | $35.5B | 369,089,214 | 100 | 334 | 311 | 3.1% |
| Q2 2023 | 966 | $48.6B | 370,376,065 | 118 | 348 | 296 | 2.2% |
| Q1 2023 | 916 | $45.2B | 381,329,718 | 83 | 314 | 327 | 2.1% |
| Q4 2022 | 921 | $43.2B | 370,603,173 | 146 | 287 | 320 | 3.0% |
| Q3 2022 | 778 | $93.8B | 1,155,307,724 | 74 | 270 | 282 | 0.8% |
| Q2 2022 | 786 | $88.5B | 1,676,787,439 | 80 | 296 | 278 | 0.7% |
| Q1 2022 | 856 | $149.3B | 325,039,467 | 65 | 325 | 281 | 0.8% |
| Q4 2021 | 932 | $147.6B | 336,665,249 | 143 | 314 | 247 | 1.9% |
| Q3 2021 | 799 | $168.7B | 343,736,213 | 110 | 257 | 249 | 1.2% |
| Q2 2021 | 729 | $129.9B | 395,129,238 | 84 | 294 | 196 | 1.2% |
| Q1 2021 | 718 | $88.2B | 272,767,978 | 73 | 275 | 224 | 1.1% |
| Q4 2020 | 731 | $81.1B | 387,742,783 | 79 | 287 | 233 | 2.1% |
| Q3 2020 | 731 | $84.2B | 288,756,100 | 80 | 269 | 255 | 1.4% |
| Q2 2020 | 725 | $89.4B | 275,402,896 | 189 | 248 | 222 | 1.0% |
| Q1 2020 | 593 | $81.7B | 302,075,802 | 143 | 189 | 186 | 0.4% |
| Q4 2019 | 504 | $48.2B | 300,313,539 | 85 | 148 | 158 | 0.9% |
| Q3 2019 | 426 | $34.1B | 226,992,109 | 52 | 144 | 138 | 0.6% |
| Q2 2019 | 422 | $29.4B | 195,035,936 | 59 | 144 | 141 | 0.7% |
| Q1 2019 | 458 | $22.8B | 190,193,400 | 74 | 136 | 164 | 0.7% |
| Q4 2018 | 412 | $23.3B | 194,371,442 | 9 | 11 | 7 | 0.2% |