Ticker · CUSIP 254067101
···Share
Holders (tracked)
10
Combined shares
396,765
Combined value
$239.10M
Last close
$592.73
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
10112024Q12025Q4
Price is -1.6% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

19 events
  1. −4,649 shares · 2025Q4
    13F
  2. +97 shares · 2025Q4
    13F
  3. −36 shares · 2025Q4
    13F
  4. −13,552 shares · 2025Q4
    13F
  5. −19,850 shares · 2025Q4
    13F
  6. +21,800 shares · 2025Q4
    13F
  7. +12,863 shares · 2025Q4
    13F
  8. +3,626 shares · 2025Q4
    13F
  9. −24,320 shares · 2025Q4
    13F
  10. +60,359 shares · 2025Q4
    13F
  11. +8,973 shares · 2025Q3
    13F
  12. +19,299 shares · 2025Q3
    13F
  13. +174 shares · 2025Q3
    13F
  14. +953 shares · 2025Q3
    13F
  15. +12,699 shares · 2025Q3
    13F
  16. −5,087 shares · 2025Q3
    13F
  17. +14,900 shares · 2025Q3
    13F
  18. +6,089 shares · 2025Q3
    13F
  19. −24,503 shares · 2025Q3
    13F

Insider activity

Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
1
DateInsiderCodeSharesPriceValue
04-14Worley Dean L.
VP/GENERAL COUNSEL & SECRETARY · Insider
G100$0
Follow-the-investor returns
If you'd copied each holder of DDS…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2016Q1$68.82+761.3%$1.4M
Wellington Management2016Q3$134.13+341.9%$544K
Renaissance Technologies2016Q1$294.33+101.4%$71.0M
D.E. Shaw & Co.2016Q1$338.41+75.2%$11.7M
Ken Griffin (Citadel Advisors)2016Q1$363.35+63.1%$13.9M
Ray Dalio (Bridgewater Associates)2019Q4$374.01+58.5%$5.8M
AQR Capital Management2016Q1$432.04+37.2%$69.1M
Norges Bank (Norway SWF)2016Q1$518.95+14.2%$35.8M
Two Sigma Investments2016Q1$556.06+6.6%$6.6M
Izzy Englander (Millennium Mgmt)2016Q2$597.96-0.9%$19.3M

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions1
Trimmed5
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
15
$7.87B
2022Q2
14
$2.81B
2022Q3
13
$11.2M
2022Q4
18
$249.0M
2023Q1
14
$162.2M
2023Q2
11
$223.4M
2023Q3
11
$229.3M
2023Q4
11
$216.0M
2024Q1
11
$221.9M
2024Q2
11
$225.3M
2024Q3
8
$175.6M
2024Q4
8
$121.0M
2025Q1
7
$118.2M
2025Q2
8
$146.0M
2025Q3
9
$220.0M
2025Q4
10
$239.1M

Who owns DDS

10 super-investors · 2025Q4
Tracked stake
396.8K
shares
Combined value
$239M
% of shares outstanding
shares-out unknown
Quarter action mix
New1Added4Trim5
#ManagerSharesValue
1Renaissance Technologies119.8K$73M
2AQR Capital Management116.6K$71M
3Norges Bank
Norway SWF
60.4K$37M
4Izzy Englander
Millennium Mgmt
32.6K$20M
5Ken Griffin
Citadel Advisors
23.5K$14M
6D.E. Shaw & Co.19.8K$12M
7Two Sigma Investments11.1K$7M
8Ray Dalio
Bridgewater Associates
9.7K$6M
9Wellington Management917$556K
10T. Rowe Price2.4K$1K

Recent moves

20 transactions
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