덱스컴(주)
DE ˙ DB ˙ US2521311074
€62.20 ↓ -0.20 (-0.32%)
2026-06-04
주가
SecurityDE:DC4 / DexCom, Inc.
InstitutionTcw Group Inc
Latest Disclosed Ownership1,339,000 shares
Ownership 1.90%
Tcw Group Inc ownership in DC4 / DexCom, Inc.

2013-02-14 - Tcw Group Inc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,339,000 shares of DexCom, Inc. (DE:DC4). This represents 1.9 percent ownership of the company.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2013-02-14 2013-02-14 13G/A 1,339,000 1.90
2012-02-09 2012-02-09 13G/A 4,477,527 6.60

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F DEXCOM COM 252131107 7,280 139 1.95 457 -3.38 0.0018
2026-02-17 2025-12-31 13F DEXCOM COM 252131107 7,141 -1,030,054 -99.31 474 -99.32 0.0034
2025-11-14 2025-09-30 13F DEXCOM COM 252131107 1,037,195 37,426 3.74 69,793 -20.03 0.5844
2025-08-14 2025-06-30 13F DEXCOM COM 252131107 999,769 62,270 6.64 87,270 36.31 0.6837
2025-05-07 2025-03-31 13F DEXCOM COM 252131107 937,499 67,403 7.75 64,022 -5.39 0.5729
2025-02-04 2024-12-31 13F DEXCOM COM 252131107 870,096 19,962 2.35 67,667 18.73 0.5682
2024-11-19 2024-09-30 13F/A-1 DEXCOM COM 252131107 850,134 -21,344 -2.45 56,993 -42.32 0.4983
2024-11-08 2024-09-30 13F DEXCOM COM 252131107 850,134 -21,344 56,993 0.2563
2024-07-19 2024-06-30 13F DEXCOM COM 252131107 871,478 61,461 7.59 98,808 -12.05 0.8832
2024-05-10 2024-03-31 13F DEXCOM COM 252131107 810,017 -36,645 -4.33 112,349 6.94 1.1374
2024-02-09 2023-12-31 13F DEXCOM COM 252131107 846,662 -99,171 -10.49 105,063 19.06 1.1707
2023-11-15 2023-09-30 13F DEXCOM COM 252131107 945,833 -80,870 -7.88 88,246 -33.12 1.1086
2023-08-14 2023-06-30 13F DEXCOM COM 252131107 1,026,703 28,848 2.89 131,942 13.81 1.4630
2023-05-15 2023-03-31 13F DEXCOM COM 252131107 997,855 10,401 1.05 115,931 3.68 1.4830
2023-02-14 2022-12-31 13F DEXCOM COM 252131107 987,454 -30,433 -2.99 111,819 36.40 1.6008
2022-10-27 2022-09-30 13F DEXCOM COM 252131107 1,017,887 -14,271 -1.38 81,980 6.57 1.1992
2022-07-19 2022-06-30 13F DEXCOM COM 252131107 1,032,158 753,948 271.00 76,927 -45.95 1.0071
2022-04-19 2022-03-31 13F DEXCOM COM 252131107 278,210 -11,522 -3.98 142,333 -8.51 1.3582
2022-01-26 2021-12-31 13F DEXCOM COM 252131107 289,732 -1,572 -0.54 155,572 -2.34 1.2793
2021-10-26 2021-09-30 13F DEXCOM COM 252131107 291,304 2,353 0.81 159,302 29.11 0.4101
2021-07-23 2021-06-30 13F DEXCOM COM 252131107 288,951 33,715 13.21 123,383 34.51 1.0691
2021-05-05 2021-03-31 13F DEXCOM COM 252131107 255,236 255,236 -11.67 91,730 -25.65 0.8789
2017-02-10 2016-12-31 13F DEXCOM COM 252131107 0 0 0 0.0000
2016-11-14 2016-09-30 13F DEXCOM COM 252131107 0 -18,120 -100.00 0 -100.00
2016-08-12 2016-06-30 13F/A-1 DEXCOM COM 252131107 18,120 889 5.16 1,437 22.82 0.0109
2016-08-11 2016-06-30 13F DEXCOM COM 252131107 18,120 1,437
2016-05-16 2016-03-31 13F DEXCOM COM 252131107 17,231 2,162 14.35 1,170 -5.19 0.0086
2016-02-16 2015-12-31 13F DEXCOM COM 252131107 15,069 -19,115 -55.92 1,234 -57.96 0.0089
2015-11-13 2015-09-30 13F DEXCOM COM 252131107 34,184 -21,506 -38.62 2,935 -34.10 0.0211
2015-08-12 2015-06-30 13F DEXCOM COM 252131107 55,690 -4,234 -7.07 4,454 19.25 0.0287
2015-05-13 2015-03-31 13F DEXCOM COM 252131107 59,924 -23,394 -28.08 3,735 -18.57 0.0179
2015-02-13 2014-12-31 13F DEXCOM COM 252131107 83,318 -6,830 -7.58 4,587 27.24 0.0192
2014-11-14 2014-09-30 13F DEXCOM COM 252131107 90,148 -2,259 -2.44 3,605 -1.64 0.0145
2014-08-14 2014-06-30 13F DEXCOM COM 252131107 92,407 -7,619 -7.62 3,665 -11.41 0.0151
2014-05-13 2014-03-31 13F DEXCOM COM 252131107 100,026 -171,208 -63.12 4,137 -56.93 0.0172
2014-02-18 2013-12-31 13F/A-1 DEXCOM COM 252131107 271,234 -43,585 -13.84 9,605 8.08 0.0405
2014-02-14 2013-12-31 13F DEXCOM COM 252131107 9,605 271,234
2013-11-14 2013-09-30 13F DEXCOM COM 252131107 314,819 -191,321 -37.80 8,887 -21.79 0.0410
2013-08-14 2013-06-30 13F/A-1 DEXCOM COM 252131107 506,140 506,140 11,363 0.0560
2013-08-14 2013-06-30 13F DEXCOM COM 252131107 506,140 11,363
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.