WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC SMPL — SIMPLY GOOD FOODS CO

Ownership history in WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC  ·  4 quarters on record

AI Ownership Summary

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC reported SIMPLY GOOD FOODS CO (SMPL) in 4 quarterly 13F filings from 2025 Q2 through 2026 Q1. Peak portfolio weight reached 0.13% in 2025 Q2. The latest visible filing shows SMPL at 0.09% 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.

What this SMPL ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's position in SIMPLY GOOD FOODS CO, 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

SMPL was reported at 0.09% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.13% in 2025 Q2

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

Time in book
Holding Window
2025 Q2 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.

SMPL stock page WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC fund profile WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC full holdings
How WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC held SMPL — position size vs. price
% of Fund (quarterly)    SMPL price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 4 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED 10.1% -8.4% ✅ 1,910,640 -214,000 -10.1% 0.09% $27.4M 2026-05-08 $12.26
2025 Q4 ADDED — — — 2,124,640 +469,903 +28.4% 0.12% $42.7M 2026-02-09 $16.47
2025 Q3 ADDED — — — 1,654,737 +108,638 +7.0% 0.11% $41.1M 2025-11-12 $19.56
2025 Q2 INITIATED — — — 1,546,099 — — 0.13% $48.8M 2025-07-29 $31.53

🏢 Other funds also holding SMPL

As of 2026 Q2 — sorted by position size

Leibman Financial Services, Inc. 1.79% River Road Asset Management, LLC 3Y 7Y 0.38% Thrive Wealth Management, LLC 3Y 0.03% Y-Intercept (Hong Kong) Ltd 3Y 0.03% Handelsbanken Fonder AB 3Y 7Y 0.02% Versant Capital Management, Inc 3Y 7Y 0.01% GAMMA Investing LLC 0.01% YOUSIF CAPITAL MANAGEMENT, LLC 3Y 0.0% Merit Financial Group, LLC 3Y 7Y 0.0% Assenagon Asset Management S.A. 3Y 7Y 0.0%

FAQ About WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC and SMPL

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

How long has WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC reported owning SMPL?

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC reported SMPL across 4 quarterly 13F filings, from 2025 Q2 through 2026 Q1.

What was the largest reported SMPL position in WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's portfolio?

The largest reported portfolio weight for SMPL was 0.13% in 2025 Q2.

What is the latest reported SMPL position on this page?

The most recent filing on this page is 2026 Q1, when WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC reported 1,910,640 shares, equal to 0.09% of portfolio, with an estimated market value of $27.4M.

What does the chart on this SMPL ownership page compare?

The chart compares WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's quarterly SMPL 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 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC time their SMPL position?

Based on 13F filing dates vs. subsequent SMPL price moves, WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC correctly timed 0 out of 3 reported position changes (0%). The annualised alpha on SMPL relative to SPY over the holding period was -75.9%.

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