Medpace Holdings, Inc.
MX ˙ BMV ˙ US58506Q1094
SecurityMX:MEDP / Medpace Holdings, Inc.
InstitutionAmerican Capital Management Inc
Latest Disclosed Ownership217,947 shares
Latest Disclosed Value $ 104,655,970
American Capital Management Inc reports 2.86% decrease in ownership of MEDP / Medpace Holdings, Inc.

On May 15, 2026 - American Capital Management Inc filed a 13F-HR form disclosing ownership of 217,947 shares of Medpace Holdings, Inc. (MX:MEDP) valued at $104,655,970 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 224,374 shares of Medpace Holdings, Inc.. This represents a change in shares of -2.86% during the quarter.

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)
2026-05-15 2026-03-31 13F MEDPACE HOLDINGS COM 58506Q109 217,947 -6,427 -2.86 104,656 -16.95 5.6209
2026-02-17 2025-12-31 13F MEDPACE HOLDINGS COM 58506Q109 224,374 -24,383 -9.80 126,020 -1.47 5.5602
2025-11-14 2025-09-30 13F MEDPACE HOLDINGS COM 58506Q109 248,757 -16,674 -6.28 127,901 53.53 5.0954
2025-08-14 2025-06-30 13F Medpace Holdings COM 58506Q109 265,431 -59,380 -18.28 83,308 -15.82 3.4555
2025-05-15 2025-03-31 13F Medpace Holdings COM 58506Q109 324,811 -4,624 -1.40 98,967 -9.58 4.0271
2025-02-11 2024-12-31 13F Medpace Holdings COM 58506Q109 329,435 -51,211 -13.45 109,448 -13.86 4.0742
2024-11-14 2024-09-30 13F Medpace Holdings COM 58506Q109 380,646 9,592 2.59 127,060 -16.86 4.1547
2024-08-14 2024-06-30 13F Medpace Holdings COM 58506Q109 371,054 -8,107 -2.14 152,819 -0.27 5.1153
2024-05-15 2024-03-31 13F Medpace Holdings COM 58506Q109 379,161 -15,959 -4.04 153,238 26.52 4.9120
2024-02-14 2023-12-31 13F Medpace Holdings COM 58506Q109 395,120 -25,800 -6.13 121,116 18.84 4.1426
2023-11-14 2023-09-30 13F Medpace Holdings COM 58506Q109 420,920 -7,854 -1.83 101,917 -1.03 3.9290
2023-08-14 2023-06-30 13F Medpace Holdings COM 58506Q109 428,774 1,037 0.24 102,979 28.03 3.5762
2023-05-03 2023-03-31 13F Medpace Holdings COM 58506Q109 427,737 -1,926 -0.45 80,436 -11.87 2.8309
2023-02-14 2022-12-31 13F Medpace Holdings COM 58506Q109 429,663 -34,490 -7.43 91,265 25.10 3.5736
2022-11-14 2022-09-30 13F Medpace Holdings COM 58506Q109 464,153 -799 -0.17 72,951 4.83 2.8794
2022-08-15 2022-06-30 13F Medpace Holdings COM 58506Q109 464,952 40,401 9.52 69,589 0.20 2.6080
2022-05-16 2022-03-31 13F Medpace Holdings COM 58506Q109 424,551 28,198 7.11 69,452 -19.49 2.0480
2022-02-14 2021-12-31 13F Medpace Holdings COM 58506Q109 396,353 9,979 2.58 86,262 17.95 2.2148
2021-11-15 2021-09-30 13F Medpace Holdings COM 58506Q109 386,374 28,794 8.05 73,133 15.79 1.9640
2021-08-13 2021-06-30 13F Medpace Holdings COM 58506Q109 357,580 48,830 15.82 63,159 24.70 1.7687
2021-05-17 2021-03-31 13F Medpace Holdings COM 58506Q109 308,750 24,418 8.59 50,650 27.97 1.5312
2021-02-16 2020-12-31 13F Medpace Holdings COM 58506Q109 284,332 14,169 5.24 39,579 31.10 1.1835
2020-11-16 2020-09-30 13F Medpace Holdings COM 58506Q109 270,163 58,677 27.75 30,191 53.47 1.1094
2020-08-13 2020-06-30 13F Medpace Holdings COM 58506Q109 211,486 52,585 33.09 19,672 68.71 0.7235
2020-05-15 2020-03-31 13F Medpace Holdings COM 58506Q109 158,901 158,901 11,660 0.5673
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.