Ducommun Incorporated
US ˙ NYSE ˙ US2641471097

SecurityDCO / Ducommun Incorporated
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership23,446 shares
Latest Disclosed Value $ 1,937,342
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 0.26% decrease in ownership of DCO / Ducommun Incorporated

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 23,446 shares of Ducommun Incorporated (US:DCO) valued at $1,937,343 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 23,508 shares of Ducommun Incorporated. This represents a change in shares of -0.26% during the quarter. The current value of the position is $3,520,182 USD.

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)
2025-08-26 2025-06-30 NP Ducommun EC US2641471097 23,446 -62 -0.26 1,937 42.01 0.0435
2025-05-28 2025-03-31 NP Ducommun EC US2641471097 23,508 80 0.34 1,364 -8.52 0.0327
2025-02-25 2024-12-31 NP Ducommun EC US2641471097 23,428 -2,890 -10.98 1,491 -13.91 0.0326
2024-11-26 2024-09-30 NP Ducommun EC US2641471097 26,318 1,245 4.97 1,733 19.04 0.0328
2024-08-26 2024-06-30 NP Ducommun EC US2641471097 25,073 982 4.08 1,456 17.81 0.0296
2024-05-28 2024-03-31 NP Ducommun EC US2641471097 24,091 0 0.00 1,236 -1.52 0.0258
2024-02-26 2023-12-31 NP Ducommun EC US2641471097 24,091 1,899 8.56 1,254 29.95 0.0268
2023-11-28 2023-09-30 NP Ducommun EC US2641471097 22,192 3,241 17.10 966 16.97 0.0252
2023-08-25 2023-06-30 NP Ducommun EC US2641471097 18,951 1,546 8.88 826 -13.34 0.0196
2023-05-26 2023-03-31 NP Ducommun EC US2641471097 17,405 0 0.00 952 9.55 0.0254
2023-02-24 2022-12-31 NP Ducommun EC US2641471097 17,405 25 0.14 870 26.12 0.0239
2022-11-25 2022-09-30 NP Ducommun EC US2641471097 17,380 0 0.00 689 -7.89 0.0197
2022-08-25 2022-06-30 NP Ducommun EC US2641471097 17,380 0 0.00 748 -17.80 0.0207
2022-05-26 2022-03-31 NP Ducommun EC US2641471097 17,380 1,664 10.59 911 23.81 0.0212
2022-02-25 2021-12-31 NP Ducommun EC US2641471097 15,716 0 0.00 735 -7.08 0.0159
2021-11-24 2021-09-30 NP Ducommun EC US2641471097 15,716 0 0.00 791 -7.70 0.0174
2021-08-26 2021-06-30 NP Ducommun EC US2641471097 15,716 0 0.00 857 -9.02 0.0184
2021-05-27 2021-03-31 NP Ducommun EC US2641471097 15,716 0 0.00 943 11.74 0.0214
2021-02-25 2020-12-31 NP Ducommun EC US2641471097 15,716 -2,320 -12.86 844 42.16 0.0216
2020-11-25 2020-09-30 NP Ducommun EC US2641471097 18,036 0 0.00 594 -5.57 0.0191
2020-08-27 2020-06-30 NP Ducommun EC US2641471097 18,036 666 3.83 629 45.71 0.0206
2020-06-01 2020-03-31 NP Ducommun EC US2641471097 17,370 700 4.20 432 -48.81 0.0176
2020-02-27 2019-12-31 NP Ducommun EC 264147109 16,670 225 1.37 842 20.80 0.0253
2019-11-27 2019-09-30 NP Ducommun EC US2641471097 16,445 16,445 697 0.0230
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.