DexCom (DXCM)
DexCom on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as surgical & medical instruments & apparatus.
15.7M
Short interest
settlement 2026-10-15
4.8
Days to cover
+1.6 days vs prior
51.2%
Short share of volume
2026-11-02
649
Fails to deliver
settlement 2026-10-09
Thu 11 Feb
Next earnings
estimated date
-$4.6M
Insider flow, 90 days
0 buys, 13 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in DXCM is 15,690,510 shares, down 1,573,115 shares over the last month. Over the last 48 readings it ranged from 8,424,177 shares (29 November 2024) to 18,654,724 shares (15 July 2026). At the reported average volume of 3.3M shares a day that is 4.8 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 15,690,510 | +11.9% | 3,304,614 | 4.75 |
| 2026-09-30 | 14,017,639 | -18.8% | 4,440,324 | 3.16 |
| 2026-09-15 | 17,263,625 | -2.1% | 3,464,086 | 4.98 |
| 2026-08-31 | 17,626,435 | +6.6% | 4,089,581 | 4.31 |
| 2026-08-14 | 16,528,608 | -5.8% | 5,619,046 | 2.94 |
| 2026-07-31 | 17,545,086 | -6.0% | 5,089,808 | 3.45 |
| 2026-07-15 | 18,654,724 | +3.0% | 4,273,671 | 4.37 |
| 2026-06-30 | 18,109,268 | +6.4% | 5,030,414 | 3.60 |
| 2026-06-15 | 17,017,820 | -2.2% | 5,375,491 | 3.17 |
| 2026-05-29 | 17,394,929 | -1.0% | 8,446,687 | 2.06 |
| 2026-05-15 | 17,564,139 | -4.1% | 6,309,334 | 2.78 |
| 2026-04-30 | 18,320,577 | +20.6% | 4,621,784 | 3.96 |
| 2026-04-15 | 15,190,268 | +3.2% | 3,739,017 | 4.06 |
| 2026-03-31 | 14,716,509 | -9.7% | 4,198,911 | 3.50 |
| 2026-03-13 | 16,295,751 | +6.4% | 3,912,914 | 4.16 |
| 2026-02-27 | 15,321,410 | +4.9% | 3,910,662 | 3.92 |
| 2026-02-13 | 14,607,048 | -5.8% | 5,975,129 | 2.44 |
| 2026-01-30 | 15,503,384 | +0.3% | 6,003,612 | 2.58 |
| 2026-01-15 | 15,457,037 | +7.2% | 5,988,910 | 2.58 |
| 2025-12-31 | 14,420,388 | +9.9% | 3,658,927 | 3.94 |
| 2025-12-15 | 13,117,820 | +0.6% | 5,455,693 | 2.40 |
| 2025-11-28 | 13,046,267 | -2.7% | 5,319,455 | 2.45 |
| 2025-11-14 | 13,410,567 | +20.0% | 9,464,204 | 1.42 |
| 2025-10-31 | 11,173,522 | -3.8% | 6,288,306 | 1.78 |
| 2025-10-15 | 11,617,322 | -11.2% | 4,644,482 | 2.50 |
| 2025-09-30 | 13,081,852 | -0.5% | 8,042,763 | 1.63 |
| 2025-09-15 | 13,142,220 | +18.4% | 4,303,226 | 3.05 |
| 2025-08-29 | 11,103,110 | +12.2% | 4,048,631 | 2.74 |
| 2025-08-15 | 9,896,707 | +16.6% | 4,111,170 | 2.41 |
| 2025-07-31 | 8,486,867 | -4.6% | 3,292,361 | 2.58 |
| 2025-07-15 | 8,892,579 | -15.4% | 2,892,319 | 3.07 |
| 2025-06-30 | 10,514,753 | +12.2% | 4,560,351 | 2.31 |
| 2025-06-13 | 9,375,485 | -10.0% | 2,467,429 | 3.80 |
| 2025-05-30 | 10,413,286 | -7.7% | 2,796,084 | 3.72 |
| 2025-05-15 | 11,279,763 | -1.1% | 5,190,211 | 2.17 |
| 2025-04-30 | 11,405,888 | +7.5% | 3,504,471 | 3.25 |
| 2025-04-15 | 10,613,879 | -3.6% | 5,400,764 | 1.97 |
| 2025-03-31 | 11,011,761 | -4.0% | 4,014,701 | 2.74 |
| 2025-03-14 | 11,474,317 | +16.3% | 4,913,057 | 2.34 |
| 2025-02-28 | 9,865,010 | +4.0% | 3,727,050 | 2.65 |
| 2025-02-14 | 9,481,584 | -3.7% | 3,535,933 | 2.68 |
| 2025-01-31 | 9,845,770 | +11.8% | 3,535,684 | 2.78 |
| 2025-01-15 | 8,809,669 | +0.1% | 3,540,343 | 2.49 |
| 2024-12-31 | 8,796,878 | -5.7% | 3,362,448 | 2.62 |
| 2024-12-13 | 9,331,901 | +10.8% | 3,003,957 | 3.11 |
| 2024-11-29 | 8,424,177 | -7.6% | 3,545,477 | 2.38 |
| 2024-11-15 | 9,116,711 | -2.6% | 4,267,860 | 2.14 |
| 2024-10-31 | 9,362,381 | +21.8% | 5,290,257 | 1.77 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of DXCM volume is 51.2%, up 27.9 points over the last five sessions. Over the last 30 readings it ranged from 19.4% (27 October 2026) to 77.1% (1 October 2026). The latest reading is in line with the 30-session average of 49.4%, on 1.5M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 763K | 1.5M | 51.2% | 274 |
| 2026-10-30 | 1.9M | 3.6M | 51.4% | 1,119 |
| 2026-10-29 | 830K | 2.0M | 40.8% | 464 |
| 2026-10-28 | 508K | 2.2M | 22.6% | 14,022 |
| 2026-10-27 | 435K | 2.2M | 19.4% | 123 |
| 2026-10-26 | 536K | 2.3M | 23.3% | 11,678 |
| 2026-10-23 | 847K | 2.0M | 42.9% | 5,635 |
| 2026-10-22 | 1.7M | 3.8M | 45.7% | 12,428 |
| 2026-10-21 | 1.8M | 3.3M | 55.5% | 0 |
| 2026-10-20 | 477K | 826K | 57.8% | 0 |
| 2026-10-19 | 435K | 996K | 43.7% | 21,930 |
| 2026-10-16 | 794K | 1.4M | 55.0% | 0 |
| 2026-10-15 | 1.3M | 1.8M | 71.3% | 1,200 |
| 2026-10-14 | 617K | 1.0M | 60.3% | 8,345 |
| 2026-10-13 | 740K | 1.2M | 63.3% | 371 |
| 2026-10-12 | 508K | 936K | 54.3% | 917 |
| 2026-10-09 | 543K | 957K | 56.8% | 13 |
| 2026-10-08 | 492K | 989K | 49.8% | 4 |
| 2026-10-07 | 498K | 919K | 54.1% | 15 |
| 2026-10-06 | 691K | 1.3M | 54.4% | 8,924 |
| 2026-10-05 | 556K | 898K | 61.9% | 14,297 |
| 2026-10-02 | 477K | 786K | 60.7% | 390 |
| 2026-10-01 | 897K | 1.2M | 77.1% | 17 |
| 2026-09-30 | 648K | 1.1M | 57.7% | 100 |
| 2026-09-29 | 580K | 1.1M | 53.5% | 977 |
| 2026-09-28 | 311K | 983K | 31.6% | 745 |
| 2026-09-25 | 250K | 610K | 40.9% | 0 |
| 2026-09-24 | 271K | 744K | 36.4% | 0 |
| 2026-09-23 | 388K | 848K | 45.7% | 4 |
| 2026-09-22 | 1.1M | 2.5M | 41.8% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 9 October 2026, the fails-to-deliver balance in DXCM is 649 shares, down 108,359 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (2 September 2026) to 109,008 shares (22 September 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-09 | 649 | $84.41 | $55K |
| 2026-09-22 | 109,008 | $89.17 | $9.7M |
| 2026-09-21 | 20,712 | $89.35 | $1.9M |
| 2026-09-16 | 45,178 | $86.45 | $3.9M |
| 2026-09-02 | 2 | $90.14 | $180 |
| 2026-08-28 | 3,579 | $89.29 | $320K |
| 2026-08-26 | 20,101 | $89.16 | $1.8M |
| 2026-08-24 | 6,371 | $92.34 | $588K |
| 2026-08-19 | 56 | $89.60 | $5K |
| 2026-08-17 | 32 | $89.75 | $3K |
| 2026-08-13 | 4,351 | $90.80 | $395K |
| 2026-08-12 | 5,328 | $89.53 | $477K |
| 2026-08-11 | 4 | $87.65 | $351 |
| 2026-08-04 | 1,447 | $87.31 | $126K |
| 2026-07-30 | 59 | $75.14 | $4K |
| 2026-07-28 | 69,270 | $73.37 | $5.1M |
| 2026-07-24 | 108 | $70.48 | $8K |
| 2026-07-22 | 536 | $74.75 | $40K |
| 2026-07-20 | 93 | $76.65 | $7K |
| 2026-07-17 | 4,746 | $77.98 | $370K |
| 2026-07-13 | 89,166 | $74.96 | $6.7M |
| 2026-07-10 | 622 | $73.02 | $45K |
| 2026-07-09 | 511 | $74.06 | $38K |
| 2026-07-08 | 185 | $73.57 | $14K |
| 2026-06-30 | 254 | $69.98 | $18K |
| 2026-06-24 | 58 | $68.92 | $4K |
| 2026-06-22 | 1,000 | $72.47 | $72K |
| 2026-06-18 | 70 | $71.23 | $5K |
| 2026-06-16 | 52,018 | $74.22 | $3.9M |
| 2026-06-15 | 4,840 | $75.37 | $365K |
Insider trades
SEC Form 4, newest first. JSONInsiders at DXCM reported 13 open-market sells worth $4.6M in the last 90 days and no open-market buys. Latest filing: Stern Sadie (EVP Chief People & Culture Off) on 2026-10-27.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-27 | Stern Sadie | EVP Chief People & Culture Off | Sell | 3K | $78.62 | $202K | 121K |
| 2026-10-15 | Brown Michael Jon | EVP Chief Legal Compliance Off | Sell | 2K | $85.48 | $145K | 98K |
| 2026-09-28 | Stern Sadie | EVP Chief People & Culture Off | Sell | 3K | $86.15 | $221K | 123K |
| 2026-09-15 | Brown Michael Jon | EVP Chief Legal Compliance Off | Sell | 2K | $84.04 | $143K | 100K |
| 2026-09-15 | AUGUSTINOS NICHOLAS | Director | Sell | 7K | $84.04 | $550K | 29K |
| 2026-09-14 | AUGUSTINOS NICHOLAS | Director | Sell | 2K | $84.02 | $130K | 36K |
| 2026-09-10 | Sylvain Jereme M | EVP, Chief Financal Officer | Sell | 4K | $83.27 | $303K | 147K |
| 2026-09-10 | Boehnlein Glenn S | Director | Grant | 6K | $0.00 | $0 | 6K |
| 2026-08-27 | Stern Sadie | EVP Chief People & Culture Off | Sell | 3K | $88.37 | $227K | 126K |
| 2026-08-22 | Leach Jacob Steven | President, CEO, and Director | Tax withholding | 1K | $92.34 | $134K | 419K |
| 2026-08-22 | Sylvain Jereme M | EVP, Chief Financal Officer | Tax withholding | 1K | $92.34 | $134K | 150K |
| 2026-08-22 | Stern Sadie | EVP Chief People & Culture Off | Tax withholding | 1K | $92.34 | $134K | 129K |
| 2026-08-22 | Brown Michael Jon | EVP Chief Legal Compliance Off | Tax withholding | 1K | $92.34 | $134K | 102K |
| 2026-08-20 | SAYER KEVIN R | Executive Chair | Sell | 97 | $91.41 | $9K | 302K |
| 2026-08-20 | SAYER KEVIN R | Executive Chair | Sell | 7K | $90.78 | $667K | 302K |
| 2026-08-20 | SAYER KEVIN R | Executive Chair | Sell | 19K | $89.71 | $1.7M | 310K |
| 2026-08-14 | Brown Michael Jon | EVP Chief Legal Compliance Off | Sell | 2K | $91.93 | $156K | 103K |
| 2026-08-12 | Heller Bridgette P | Director | Sell | 1K | $88.29 | $89K | 30K |
| 2026-08-12 | AUGUSTINOS NICHOLAS | Director | Gift | 1K | $0.00 | $0 | 37K |
| 2026-08-03 | FOLETTA MARK G | Director | Sell | 2K | $85.32 | $171K | 49K |
| 2026-07-31 | FOLETTA MARK G | Director | Sell | 2K | $80.00 | $160K | 51K |
| 2026-07-20 | SAYER KEVIN R | Executive Chair | Sell | 27K | $76.32 | $2.0M | 329K |
| 2026-07-15 | Brown Michael Jon | EVP Chief Legal Compliance Off | Sell | 2K | $74.42 | $127K | 105K |
| 2026-07-06 | SAYER KEVIN R | Executive Chair | Sell | 27K | $72.00 | $1.9M | 356K |
| 2026-06-15 | FOLETTA MARK G | Director | Sell | 4K | $74.10 | $282K | 53K |
| 2026-06-15 | FOLETTA MARK G | Director | Sell | 199 | $74.82 | $15K | 53K |
| 2026-06-15 | Brown Michael Jon | EVP Chief Legal Compliance Off | Sell | 2K | $75.55 | $128K | 106K |
| 2026-06-04 | Coleman Jon | EVP, Chief Commercial Officer | Sell | 5K | $74.13 | $364K | 95K |
| 2026-06-03 | Coleman Jon | EVP, Chief Commercial Officer | Sell | 5K | $73.00 | $359K | 100K |
| 2026-05-28 | Malady Kyle | Director | Grant | 6K | $0.00 | $0 | 28K |
| 2026-05-28 | FOLETTA MARK G | Director | Grant | 6K | $0.00 | $0 | 6K |
| 2026-05-28 | Heller Bridgette P | Director | Grant | 6K | $0.00 | $0 | 31K |
| 2026-05-28 | Osterloh Albert Frederick IV | Director | Grant | 2K | $0.00 | $0 | 9K |
| 2026-05-28 | Driscoll Rimma | Director | Grant | 6K | $0.00 | $0 | 17K |
| 2026-05-28 | GALA RENEE D | Director | Grant | 6K | $0.00 | $0 | 12K |
| 2026-05-28 | Collins Richard Alexander | Director | Grant | 6K | $0.00 | $0 | 6K |
| 2026-05-28 | Ashley Euan A. | Director | Grant | 6K | $0.00 | $0 | 13K |
| 2026-05-28 | AUGUSTINOS NICHOLAS | Director | Grant | 6K | $0.00 | $0 | 6K |
| 2026-05-28 | ALTMAN STEVEN R | Director | Grant | 6K | $0.00 | $0 | 6K |
| 2026-05-22 | Leach Jacob Steven | President, CEO, and Director | Tax withholding | 1K | $71.90 | $104K | 420K |
| 2026-05-22 | Sylvain Jereme M | EVP, Chief Financal Officer | Tax withholding | 1K | $71.90 | $104K | 152K |
| 2026-05-22 | Stern Sadie | EVP Chief People & Culture Off | Tax withholding | 1K | $71.90 | $104K | 130K |
| 2026-05-22 | Coleman Jon | EVP, Chief Commercial Officer | Tax withholding | 7K | $71.90 | $529K | 105K |
| 2026-05-22 | Brown Michael Jon | EVP Chief Legal Compliance Off | Tax withholding | 1K | $71.90 | $104K | 108K |
| 2026-05-21 | SAYER KEVIN R | Executive Chair | Sell | 27K | $72.00 | $1.9M | 382K |
| 2026-05-15 | Brown Michael Jon | EVP, Chief Legal Officer | Sell | 2K | $59.91 | $102K | 110K |
| 2026-05-12 | Heller Bridgette P | Director | Sell | 1K | $60.01 | $61K | 25K |
| 2026-05-08 | AUGUSTINOS NICHOLAS | Director | Gift | 5K | $0.00 | $0 | 38K |
| 2026-05-08 | Collins Richard Alexander | Director | Gift | 5K | $0.00 | $0 | 40K |
| 2026-05-08 | FOLETTA MARK G | Director | Gift | 6K | $0.00 | $0 | 57K |
| 2026-05-08 | ALTMAN STEVEN R | Director | Gift | 5K | $0.00 | $0 | 64K |
| 2026-05-08 | FOLETTA MARK G | Director | Gift | 6K | $0.00 | $0 | 0 |
| 2026-05-08 | Collins Richard Alexander | Director | Gift | 5K | $0.00 | $0 | 0 |
| 2026-05-08 | AUGUSTINOS NICHOLAS | Director | Gift | 5K | $0.00 | $0 | 0 |
| 2026-05-08 | ALTMAN STEVEN R | Director | Gift | 5K | $0.00 | $0 | 0 |
| 2026-04-15 | Brown Michael Jon | EVP, Chief Legal Officer | Sell | 2K | $63.04 | $107K | 111K |
| 2026-03-16 | Brown Michael Jon | EVP, Chief Legal Officer | Sell | 2K | $64.85 | $110K | 113K |
| 2026-03-08 | SAYER KEVIN R | Executive Chair | Tax withholding | 32K | $68.10 | $2.2M | 409K |
| 2026-03-08 | SAYER KEVIN R | Executive Chair | Grant | 33K | $0.00 | $0 | 442K |
| 2026-03-08 | Sylvain Jereme M | EVP, Chief Financal Officer | Tax withholding | 19K | $68.10 | $1.3M | 153K |
| 2026-03-08 | Sylvain Jereme M | EVP, Chief Financal Officer | Grant | 49K | $0.00 | $0 | 172K |
| 2026-03-08 | Stern Sadie | EVP, Chief HR Officer | Tax withholding | 17K | $68.10 | $1.2M | 132K |
| 2026-03-08 | Stern Sadie | EVP, Chief HR Officer | Grant | 39K | $0.00 | $0 | 149K |
| 2026-03-08 | Leach Jacob Steven | President, CEO, and Director | Tax withholding | 20K | $68.10 | $1.3M | 422K |
| 2026-03-08 | Leach Jacob Steven | President, CEO, and Director | Grant | 105K | $0.00 | $0 | 442K |
| 2026-03-08 | Coleman Jon | EVP, Chief Commercial Officer | Grant | 44K | $0.00 | $0 | 113K |
| 2026-03-08 | Brown Michael Jon | EVP, Chief Legal Officer | Tax withholding | 23K | $68.10 | $1.6M | 115K |
| 2026-03-08 | Brown Michael Jon | EVP, Chief Legal Officer | Grant | 39K | $0.00 | $0 | 138K |
| 2026-02-26 | Osterloh Albert Frederick IV | Director | Grant | 7K | $0.00 | $0 | 7K |
| 2026-02-12 | Heller Bridgette P | Director | Sell | 1K | $68.01 | $69K | 26K |
| 2026-01-29 | Leach Jacob Steven | President, CEO, and Director | Tax withholding | 3K | $73.36 | $224K | 337K |
| 2026-01-29 | Leach Jacob Steven | President, CEO, and Director | Grant | 8K | $0.00 | $0 | 340K |
| 2026-01-29 | Stern Sadie | EVP, Chief HR Officer | Tax withholding | 3K | $73.36 | $195K | 110K |
| 2026-01-29 | Stern Sadie | EVP, Chief HR Officer | Grant | 7K | $0.00 | $0 | 112K |
| 2026-01-29 | Sylvain Jereme M | EVP, Chief Financal Officer | Tax withholding | 3K | $73.36 | $195K | 123K |
| 2026-01-29 | Sylvain Jereme M | EVP, Chief Financal Officer | Grant | 7K | $0.00 | $0 | 126K |
| 2026-01-29 | SAYER KEVIN R | Executive Chair | Tax withholding | 34K | $73.36 | $2.5M | 409K |
| 2026-01-29 | SAYER KEVIN R | Executive Chair | Grant | 71K | $0.00 | $0 | 443K |
| 2026-01-29 | Brown Michael Jon | EVP, Chief Legal Officer | Tax withholding | 3K | $73.36 | $195K | 99K |
| 2026-01-29 | Brown Michael Jon | EVP, Chief Legal Officer | Grant | 7K | $0.00 | $0 | 101K |
| 2025-11-14 | Collins Richard Alexander | Director | Sell | 3K | $59.05 | $172K | 35K |
| 2025-11-12 | Heller Bridgette P | Director | Sell | 1K | $58.07 | $59K | 27K |
| 2025-11-10 | Leach Jacob Steven | President & COO | Buy | 3K | $55.43 | $139K | 332K |
| 2025-11-10 | Leach Jacob Steven | President & COO | Buy | 16K | $54.98 | $863K | 329K |
| 2025-11-10 | Collins Richard Alexander | Director | Sell | 4K | $55.17 | $218K | 38K |
| 2025-10-24 | Ashley Euan A. | Director | Grant | 7K | $0.00 | $0 | 7K |
| 2025-09-05 | Malady Kyle | Director | Sell | 667 | $80.86 | $54K | 23K |
| 2025-09-04 | Stern Sadie | EVP, Chief HR Officer | Sell | 1K | $80.00 | $117K | 105K |
| 2025-09-02 | Sylvain Jereme M | EVP, Chief Financal Officer | Sell | 5K | $74.17 | $358K | 119K |
| 2025-08-15 | FOLETTA MARK G | Director | Sell | 195 | $81.54 | $16K | 51K |
| 2025-08-15 | FOLETTA MARK G | Director | Sell | 3K | $81.02 | $207K | 51K |
| 2025-08-15 | Brown Michael Jon | EVP, Chief Legal Officer | Sell | 500 | $80.29 | $40K | 94K |
| 2025-07-28 | Stern Sadie | EVP, Chief HR Officer | Sell | 1K | $88.99 | $130K | 107K |
| 2025-07-15 | FOLETTA MARK G | Director | Sell | 8 | $86.03 | $688 | 54K |
| 2025-07-15 | FOLETTA MARK G | Director | Sell | 3K | $85.17 | $234K | 54K |
| 2025-07-15 | Brown Michael Jon | EVP, Chief Legal Officer | Sell | 500 | $86.03 | $43K | 95K |
| 2025-06-26 | Stern Sadie | EVP, Chief HR Officer | Sell | 1K | $85.06 | $125K | 108K |
| 2025-06-16 | AUGUSTINOS NICHOLAS | Director | Sell | 4K | $82.80 | $304K | 33K |
| 2025-06-16 | FOLETTA MARK G | Director | Sell | 3K | $83.13 | $229K | 57K |
| 2025-06-16 | Brown Michael Jon | EVP, Chief Legal Officer | Sell | 500 | $82.80 | $41K | 95K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON29 Form 144 notices on file for DXCM worth $13.0M at the prices reported; 11 in the last 90 days worth $4.6M. Latest: SADIE STERN filed on 2026-10-27 to sell 2,565 shares ($202K) from 2026-10-27.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-10-27 | SADIE STERNOfficer | 3K | $202K | 0.001% | 2026-10-27 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-10-15 | MICHAEL BROWNOfficer | 2K | $145K | 0.000% | 2026-10-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-28 | SADIE STERNOfficer | 3K | $221K | 0.001% | 2026-09-28 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-15 | MICHAEL BROWNOfficer | 2K | $143K | 0.000% | 2026-09-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-15 | AUGUSTINOS NICHOLASDirector | 7K | $550K | 0.002% | 2026-09-15 | Fidelity Brokerage Services LLC |
| 2026-09-14 | AUGUSTINOS NICHOLASDirector | 2K | $130K | 0.000% | 2026-09-14 | Fidelity Brokerage Services LLC |
| 2026-09-10 | JEREME SYLVAINOfficer | 4K | $303K | 0.001% | 2026-09-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-27 | SADIE STERNOfficer | 3K | $227K | 0.001% | 2026-08-27 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-20 | KEVIN R SAYEROfficer, Director | 27K | $2.4M | 0.007% | 2026-08-20 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-14 | MICHAEL BROWNOfficer | 2K | $156K | 0.000% | 2026-08-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-12 | Heller Bridgette PDirector | 1K | $89K | 0.000% | 2026-08-12 | Fidelity Brokerage Services LLC |
| 2026-08-03 | FOLETTA MARK GDirector | 2K | $171K | 0.001% | 2026-08-03 | UBS Financial Services, Inc. |
| 2026-07-31 | FOLETTA MARK GDirector | 2K | $160K | 0.001% | 2026-07-31 | UBS Financial Services, Inc. |
| 2026-07-20 | KEVIN R SAYEROfficer, Director | 27K | $2.0M | 0.007% | 2026-07-20 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-07-15 | MICHAEL BROWNOfficer | 2K | $127K | 0.000% | 2026-07-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-07-06 | KEVIN R SAYEROfficer, Director | 27K | $1.9M | 0.007% | 2026-07-06 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-15 | FOLETTA MARK GDirector | 4K | $303K | 0.001% | 2026-06-15 | UBS Financial Services, Inc. |
| 2026-06-15 | MICHAEL BROWNOfficer | 2K | $128K | 0.000% | 2026-06-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-04 | JON C COLEMANOfficer | 5K | $364K | 0.001% | 2026-06-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-03 | JON C COLEMANOfficer | 5K | $359K | 0.001% | 2026-06-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-21 | KEVIN R SAYEROfficer, Director | 27K | $1.9M | 0.007% | 2026-05-21 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-15 | MICHAEL BROWNOfficer | 2K | $102K | 0.000% | 2026-05-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-12 | Heller Bridgette PDirector | 1K | $61K | 0.000% | 2026-05-12 | Fidelity Brokerage Services LLC |
| 2026-04-15 | MICHAEL BROWNOfficer | 2K | $107K | 0.000% | 2026-04-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-16 | MICHAEL BROWNOfficer | 2K | $110K | 0.000% | 2026-03-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-12 | Heller Bridgette PDirector | 1K | $69K | 0.000% | 2026-02-12 | Fidelity Brokerage Services LLC |
| 2025-11-14 | Collins Richard AlexanderDirector | 3K | $172K | 0.001% | 2025-11-14 | Fidelity Brokerage Services LLC |
| 2025-11-12 | Heller Bridgette PDirector | 1K | $59K | 0.000% | 2025-11-12 | Fidelity Brokerage Services LLC |
| 2025-11-10 | Collins Richard AlexanderDirector | 4K | $218K | 0.001% | 2025-11-10 | Fidelity Brokerage Services LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON2 holders report 5% or more of DXCM in their latest filing, all on Schedule 13G (passive). The largest reported stake is Vanguard Capital Management at 7.5% of the class (28,848,218 shares), filed 2026-04-29 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 19.3M | 5.0% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Capital Managementinvestment adviser | 28.8M | 7.5% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 14 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding DXCM at their latest 13F. JSON9 of the 30 tracked managers held DXCM at their latest 13F, $489.8M in total at quarter-end prices. AQR Capital Management is the largest at $218.1M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 5 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 3.2M | $218.1M | 0.08% | +1.1M |
| Renaissance Technologies | 2026-06-30 | 1.6M | $109.8M | 0.15% | +48K |
| Citadel Advisors | 2026-06-30 | 1.2M | $81.6M | 0.01% | -880K |
| Bridgewater Associates | 2026-06-30 | 401K | $27.0M | 0.11% | +261K |
| Millennium Management | 2026-06-30 | 395K | $26.6M | 0.01% | -1.2M |
| Point72 Asset Management | 2026-06-30 | 283K | $19.0M | 0.02% | +26K |
| Fisher Asset Management | 2026-06-30 | 61K | $4.1M | 0.00% | -128K |
| Two Sigma Investments | 2026-06-30 | 47K | $3.1M | 0.00% | -1.1M |
| D. E. Shaw & Co. | 2026-06-30 | 6K | $382K | 0.00% | -22K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q3 FY 2026 (quarter ended 2026-09-30) DexCom reported revenue of $1.34B, up 11.2% from the same quarter a year earlier, and net income of $275.1M (0.72 diluted EPS). In FY 2025 it generated $1.44B of operating cash flow and spent $500.0M on buybacks.
- Cash
- $961.4M
- Equity
- $2.54B
- Total assets
- $6.24B
- Shares outstanding
- 372,950,922
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q3 FY 2026 | 2026-09-30 | $1.34B | $275.1M | 20.5% | 0.72 |
| Q2 FY 2026 | 2026-06-30 | $1.31B | $249.1M | 19.0% | 0.64 |
| Q1 FY 2026 | 2026-03-31 | $1.19B | $199.5M | 16.7% | 0.51 |
| Q4 FY 2025derived | 2025-12-31 | $1.26B | $267.3M | 21.2% | n/a |
| Q3 FY 2025 | 2025-09-30 | $1.21B | $283.8M | 23.5% | 0.70 |
| Q2 FY 2025 | 2025-06-30 | $1.16B | $179.8M | 15.5% | 0.45 |
| Q1 FY 2025 | 2025-03-31 | $1.04B | $105.4M | 10.2% | 0.27 |
| Q4 FY 2024derived | 2024-12-31 | $1.11B | $151.7M | 13.6% | n/a |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $4.66B | $836.3M | $1.44B | $363.5M | $500.0M | n/a |
| FY 2024 | 2024-12-31 | $4.03B | $576.2M | $989.5M | $358.8M | $750.0M | n/a |
| FY 2023 | 2023-12-31 | $3.62B | $541.5M | $748.5M | $236.6M | $688.7M | n/a |
| FY 2022 | 2022-12-31 | $2.91B | $341.2M | $669.5M | $364.8M | $557.7M | n/a |
| FY 2021 | 2021-12-31 | $2.45B | $216.9M | $442.5M | $389.2M | $0 | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-09-30; shares outstanding as of 2026-10-22 from the cover page.
What this page is
DexCom in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows DexCom (DXCM), SEC CIK 1093557, listed on Nasdaq, classified by the SEC as surgical & medical instruments & apparatus. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-09.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-10-27.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-04-29.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-09-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-10-29.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-27.JSON and CSV
- Company record
- EDGAR filing index for CIK 1093557Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of DXCM is sold short?
15,690,510 shares were held short at the 2026-10-15 settlement, 4.8 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is DXCM's daily short volume?
On 2026-11-02, 762,802 of the 1,489,945 DXCM shares reported to FINRA were sold short, 51.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does DXCM have fails to deliver?
The SEC's latest file shows 649 DXCM shares failed to deliver at settlement 2026-10-09. Fails are reported per settlement date and published twice a month with a lag.
Are DXCM insiders buying or selling?
Insiders at DXCM reported 13 open-market sells worth $4.6M in the last 90 days and no open-market buys. Latest filing: Stern Sadie (EVP Chief People & Culture Off) on 2026-10-27.
Have DXCM insiders filed to sell?
29 Form 144 notices on file for DXCM worth $13.0M at the prices reported; 11 in the last 90 days worth $4.6M. Latest: SADIE STERN filed on 2026-10-27 to sell 2,565 shares ($202K) from 2026-10-27.
Who owns 5% or more of DXCM?
2 holders report 5% or more of DXCM in their latest filing, all on Schedule 13G (passive). The largest reported stake is Vanguard Capital Management at 7.5% of the class (28,848,218 shares), filed 2026-04-29 for an event on 2026-03-31.
What did DXCM report last quarter?
In Q3 FY 2026 (quarter ended 2026-09-30) DexCom reported revenue of $1.34B, up 11.2% from the same quarter a year earlier, and net income of $275.1M (0.72 diluted EPS). In FY 2025 it generated $1.44B of operating cash flow and spent $500.0M on buybacks.
Which tracked 13F managers own DXCM?
9 of the 30 tracked 13F managers held DXCM shares at their latest filing, $489.8M in all. The largest: Cliff Asness's AQR Capital Management (3.2M shares, $218.1M), Renaissance Technologies (1.6M shares, $109.8M), Ken Griffin's Citadel Advisors (1.2M shares, $81.6M), Ray Dalio's Bridgewater Associates (401K shares, $27.0M), Izzy Englander's Millennium Management (395K shares, $26.6M), Steve Cohen's Point72 Asset Management (283K shares, $19.0M). The table above lists all 9.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.