DIMENSIONAL FUND ADVISORS LP ACET D ACETO CORP COM

Ownership history in DIMENSIONAL FUND ADVISORS LP  ·  95 quarters on record

AI Ownership Summary

DIMENSIONAL FUND ADVISORS LP reported D ACETO CORP COM (ACET) in 95 quarterly 13F filings from 2023 Q4 through 2026 Q1. The latest visible filing shows ACET at 0.00% 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 ACET ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was DIMENSIONAL FUND ADVISORS LP's position in D ACETO CORP COM, 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
2026 Q1

ACET was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2024 Q1

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 2026 Q1

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.

How DIMENSIONAL FUND ADVISORS LP held ACET — position size vs. price
% of Fund (quarterly)    ACET price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 9 quarters  
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED 10,778 -42,185 -79.6% 0.00% $73K 2026-05-07 $8.32
2025 Q3 REDUCED 7.5% -39.3% 52,963 -4,305 -7.5% 0.00% $43K 2025-11-12 $10.99
2025 Q2 REDUCED 61.3% +36.3% 57,268 -90,546 -61.3% 0.00% $35K 2025-08-12 $10.22
2025 Q1 UNCHANGED 147,814 0% 0.00% $112K 2025-05-13 $10.69
2024 Q4 UNCHANGED 147,814 0% 0.00% $142K 2025-02-13 $14.40
2024 Q3 UNCHANGED 147,814 0% 0.00% $213K 2024-11-07 $21.28
2024 Q2 REDUCED 21.9% +19.0% 147,814 -41,513 -21.9% 0.00% $179K 2024-08-09 $21.44
2024 Q1 ADDED 189,327 +35,913 +23.4% 0.00% $445K 2024-05-10 $23.52
2023 Q4 REDUCED 153,414 -7,491 -4.7% 0.00% $290K 2024-02-07 $51.36
86 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

FAQ About DIMENSIONAL FUND ADVISORS LP and ACET

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

How long has DIMENSIONAL FUND ADVISORS LP reported owning ACET?

DIMENSIONAL FUND ADVISORS LP reported ACET across 9 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported ACET position in DIMENSIONAL FUND ADVISORS LP's portfolio?

The largest reported portfolio weight for ACET was 0.00% in 2024 Q1.

What is the latest reported ACET position on this page?

The most recent filing on this page is 2026 Q1, when DIMENSIONAL FUND ADVISORS LP reported 10,778 shares, equal to 0.00% of portfolio, with an estimated market value of $73K.

What does the chart on this ACET ownership page compare?

The chart compares DIMENSIONAL FUND ADVISORS LP's quarterly ACET 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 DIMENSIONAL FUND ADVISORS LP time their ACET position?

Based on 13F filing dates vs. subsequent ACET price moves, DIMENSIONAL FUND ADVISORS LP correctly timed 10 out of 21 reported position changes (48%). The annualised alpha on ACET relative to SPY over the holding period was -48.9%.

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