Grantham, Mayo, Van Otterloo & Co. LLC MEDP — MEDPACE HLDGS INC

Ownership history in Grantham, Mayo, Van Otterloo & Co. LLC  ·  13 quarters on record

AI Ownership Summary

Grantham, Mayo, Van Otterloo & Co. LLC reported MEDPACE HLDGS INC (MEDP) in 13 quarterly 13F filings from 2023 Q4 through 2025 Q3. Peak portfolio weight reached 0.07% in 2023 Q4. The latest visible filing shows MEDP at 0.05% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this MEDP ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Grantham, Mayo, Van Otterloo & Co. LLC's position in MEDPACE HLDGS INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q3

MEDP was reported at 0.05% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.07% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q3

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

MEDP stock page Grantham, Mayo, Van Otterloo & Co. LLC fund profile Grantham, Mayo, Van Otterloo & Co. LLC full holdings
How Grantham, Mayo, Van Otterloo & Co. LLC held MEDP — position size vs. price
% of Fund (quarterly)    MEDP price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 7 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q3 ADDED — — — 34,097 +319 +0.9% 0.05% $17.5M 2025-11-13 $591.32
2025 Q2 ADDED — — — 33,778 +11,768 +53.5% 0.03% $10.6M 2025-08-13 $468.00
2025 Q1 ADDED — — — 22,010 +4,818 +28.0% 0.02% $6.7M 2025-05-14 $291.73
2024 Q4 REDUCED 55.0% -8.3% ✅ 17,192 -21,045 -55.0% 0.02% $5.7M 2025-02-13 $342.41
2024 Q2 ADDED — — — 38,237 +3,432 +9.9% 0.05% $15.7M 2024-08-13 $384.18
2024 Q1 REDUCED 32.5% +0.8% ❌ 34,805 -16,760 -32.5% 0.05% $14.1M 2024-05-14 $398.52
2023 Q4 REDUCED — — — 51,565 -2,444 -4.5% 0.07% $15.8M 2024-02-13 $364.10
6 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding MEDP

As of 2026 Q1 — sorted by position size

RIVERBRIDGE PARTNERS LLC 3Y 7Y 2.79% WASATCH ADVISORS LP 3Y 7Y 2.47% Abacus FCF Advisors LLC 3Y 7Y 1.33% Ausbil Investment Management Ltd 3Y 0.99% Berkeley, Inc 0.93% Annex Advisory Services, LLC 3Y 7Y 0.85% Davidson Capital Management Inc. 3Y 0.81% Lifestyle Asset Management, Inc. 3Y 0.79% Yorktown Management & Research Co Inc 3Y 7Y 0.72% Boston Trust Walden Corp 3Y 7Y 0.56%

FAQ About Grantham, Mayo, Van Otterloo & Co. LLC and MEDP

These are the practical questions this page is built to answer before you even open the full history table.

How long has Grantham, Mayo, Van Otterloo & Co. LLC reported owning MEDP?

Grantham, Mayo, Van Otterloo & Co. LLC reported MEDP across 7 quarterly 13F filings, from 2023 Q4 through 2025 Q3.

What was the largest reported MEDP position in Grantham, Mayo, Van Otterloo & Co. LLC's portfolio?

The largest reported portfolio weight for MEDP was 0.07% in 2023 Q4.

What is the latest reported MEDP position on this page?

The most recent filing on this page is 2025 Q3, when Grantham, Mayo, Van Otterloo & Co. LLC reported 34,097 shares, equal to 0.05% of portfolio, with an estimated market value of $17.5M.

What does the chart on this MEDP ownership page compare?

The chart compares Grantham, Mayo, Van Otterloo & Co. LLC's quarterly MEDP portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Grantham, Mayo, Van Otterloo & Co. LLC time their MEDP position?

Based on 13F filing dates vs. subsequent MEDP price moves, Grantham, Mayo, Van Otterloo & Co. LLC correctly timed 7 out of 11 reported position changes (64%). The annualised alpha on MEDP relative to SPY over the holding period was +110.0%.

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