THOMPSON SIEGEL & WALMSLEY LLC ETON — ETON PHARMACEUTICALS INC

Ownership history in THOMPSON SIEGEL & WALMSLEY LLC  ·  8 quarters on record

AI Ownership Summary

THOMPSON SIEGEL & WALMSLEY LLC reported ETON PHARMACEUTICALS INC (ETON) in 8 quarterly 13F filings from 2024 Q2 through 2026 Q1. Peak portfolio weight reached 0.18% in 2026 Q1. The latest visible filing shows ETON at 0.18% 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 ETON ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was THOMPSON SIEGEL & WALMSLEY LLC's position in ETON PHARMACEUTICALS 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

ETON was reported at 0.18% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.18% in 2026 Q1

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

Time in book
Holding Window
2024 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.

ETON stock page THOMPSON SIEGEL & WALMSLEY LLC fund profile THOMPSON SIEGEL & WALMSLEY LLC full holdings
How THOMPSON SIEGEL & WALMSLEY LLC held ETON — position size vs. price
% of Fund (quarterly)    ETON price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 8 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 406,089 -2,452 -0.6% 0.18% $10K 2026-05-11 $29.84
2025 Q4 REDUCED — — — 408,541 -10,025 -2.4% 0.12% $6.9M 2026-02-10 $15.21
2025 Q3 ADDED — — — 418,566 +37,301 +9.8% 0.15% $9.1M 2025-11-12 $17.46
2025 Q2 ADDED — — — 381,265 +191,402 +100.8% 0.09% $5.4M 2025-08-06 $15.26
2025 Q1 ADDED — — — 189,863 +61,824 +48.3% 0.04% $2.5M 2025-05-09 $16.79
2024 Q4 ADDED — — — 128,039 +13,009 +11.3% 0.03% $1.7M 2025-02-10 $17.16
2024 Q3 REDUCED 9.9% +117.2% ❌ 115,030 -12,694 -9.9% 0.01% $690K 2024-11-12 $9.17
2024 Q2 INITIATED — — — 127,724 — — 0.01% $420K 2024-08-08 $3.62

🏢 Other funds also holding ETON

As of 2026 Q1 — sorted by position size

Opaleye Management Inc. 3Y 7Y 9.3% CANNELL CAPITAL LLC 3Y 7Y 5.18% Pillsbury Lake Capital LLC 4.07% Panoramic Capital, LLC 3.21% EcoR1 Capital, LLC 3Y 7Y 2.27% Westside Investment Management, Inc. 3Y 7Y 1.77% Lumbard & Kellner, LLC 3Y 7Y 1.5% Nantahala Capital Management, LLC 3Y 7Y 1.07% Diametric Capital, LP 3Y 7Y 1.01% Aristides Capital LLC 3Y 0.99%

FAQ About THOMPSON SIEGEL & WALMSLEY LLC and ETON

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

How long has THOMPSON SIEGEL & WALMSLEY LLC reported owning ETON?

THOMPSON SIEGEL & WALMSLEY LLC reported ETON across 8 quarterly 13F filings, from 2024 Q2 through 2026 Q1.

What was the largest reported ETON position in THOMPSON SIEGEL & WALMSLEY LLC's portfolio?

The largest reported portfolio weight for ETON was 0.18% in 2026 Q1.

What is the latest reported ETON position on this page?

The most recent filing on this page is 2026 Q1, when THOMPSON SIEGEL & WALMSLEY LLC reported 406,089 shares, equal to 0.18% of portfolio, with an estimated market value of $10K.

What does the chart on this ETON ownership page compare?

The chart compares THOMPSON SIEGEL & WALMSLEY LLC's quarterly ETON 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 THOMPSON SIEGEL & WALMSLEY LLC time their ETON position?

Based on 13F filing dates vs. subsequent ETON price moves, THOMPSON SIEGEL & WALMSLEY LLC correctly timed 2 out of 7 reported position changes (29%). The annualised alpha on ETON relative to SPY over the holding period was +172.1%.

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