KORNITZER CAPITAL MANAGEMENT INC /KS WMS — ADVANCED DRAINAGE SYSTEMS INC

Ownership history in KORNITZER CAPITAL MANAGEMENT INC /KS  ·  27 quarters on record

AI Ownership Summary

KORNITZER CAPITAL MANAGEMENT INC /KS reported ADVANCED DRAINAGE SYSTEMS INC (WMS) in 27 quarterly 13F filings from 2024 Q1 through 2026 Q1. Peak portfolio weight reached 0.36% in 2025 Q1. The latest visible filing shows WMS at 0.22% 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 WMS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was KORNITZER CAPITAL MANAGEMENT INC /KS's position in ADVANCED DRAINAGE SYSTEMS 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
2026 Q1

WMS was reported at 0.22% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.36% in 2025 Q1

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

Time in book
Holding Window
2024 Q1 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.

WMS stock page KORNITZER CAPITAL MANAGEMENT INC /KS fund profile KORNITZER CAPITAL MANAGEMENT INC /KS full holdings
How KORNITZER CAPITAL MANAGEMENT INC /KS held WMS — position size vs. price
% of Fund (quarterly)    WMS 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 UNCHANGED — — — 76,180 — 0% 0.22% $10.4M 2026-04-30 $149.04
2025 Q4 REDUCED 19.4% -5.2% ✅ 76,180 -18,300 -19.4% 0.23% $11.0M 2026-02-02 $155.91
2025 Q3 REDUCED 29.9% +7.3% ❌ 94,480 -40,385 -29.9% 0.26% $13.1M 2025-10-31 $139.54
2025 Q2 REDUCED 16.0% +20.3% ❌ 134,865 -25,730 -16.0% 0.31% $15.5M 2025-07-31 $114.19
2025 Q1 ADDED — — — 160,595 +9,950 +6.6% 0.36% $17.4M 2025-05-02 $115.27
2024 Q4 ADDED — — — 150,645 +54,295 +56.4% 0.34% $17.4M 2025-01-31 $119.95
2024 Q3 ADDED — — — 96,350 +825 +0.9% 0.28% $15.1M 2024-10-31 $148.52
2024 Q2 REDUCED — — — 95,525 -75 -0.1% 0.29% $15.3M 2024-08-02 $159.90
2024 Q1 UNCHANGED — — — 95,600 — 0% 0.30% $16.5M 2024-05-02 $160.15
18 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding WMS

As of 2026 Q2 — sorted by position size

BDF-GESTION 4.08% Cannon Advisors, Inc. 1.17% Capital Investment Counsel, LLC 0.55% Achmea Investment Management B.V. 3Y 7Y 0.4% Perpetual Ltd 3Y 7Y 0.24% Welch Financial Planning, LLC 0.18% AA Financial Advisors, LLC 0.18% Marshall Financial Group, LLC 3Y 0.14% BRAVE ASSET MANAGEMENT INC 3Y 7Y 0.12% NOVEM GROUP 0.11%

FAQ About KORNITZER CAPITAL MANAGEMENT INC /KS and WMS

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

How long has KORNITZER CAPITAL MANAGEMENT INC /KS reported owning WMS?

KORNITZER CAPITAL MANAGEMENT INC /KS reported WMS across 9 quarterly 13F filings, from 2024 Q1 through 2026 Q1.

What was the largest reported WMS position in KORNITZER CAPITAL MANAGEMENT INC /KS's portfolio?

The largest reported portfolio weight for WMS was 0.36% in 2025 Q1.

What is the latest reported WMS position on this page?

The most recent filing on this page is 2026 Q1, when KORNITZER CAPITAL MANAGEMENT INC /KS reported 76,180 shares, equal to 0.22% of portfolio, with an estimated market value of $10.4M.

What does the chart on this WMS ownership page compare?

The chart compares KORNITZER CAPITAL MANAGEMENT INC /KS's quarterly WMS 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 KORNITZER CAPITAL MANAGEMENT INC /KS time their WMS position?

Based on 13F filing dates vs. subsequent WMS price moves, KORNITZER CAPITAL MANAGEMENT INC /KS correctly timed 8 out of 22 reported position changes (36%). The annualised alpha on WMS relative to SPY over the holding period was +7.7%.

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