MARSHALL WACE, LLP AMWL AMERICAN WELL -A

Ownership history in MARSHALL WACE, LLP  ·  7 quarters on record

AI Ownership Summary

MARSHALL WACE, LLP reported AMERICAN WELL -A (AMWL) in 7 quarterly 13F filings from 2024 Q3 through 2026 Q1. The latest visible filing shows AMWL 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.

What this AMWL ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was MARSHALL WACE, LLP's position in AMERICAN WELL -A, 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

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

High-water mark
Peak Conviction
0.0% 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 Q3 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 MARSHALL WACE, LLP held AMWL — position size vs. price
% of Fund (quarterly)    AMWL 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)
2026 Q1 REDUCED 44,045 -43,402 -49.6% 0.00% $232K 2026-05-15 $7.57
2025 Q4 ADDED 87,447 +38,018 +76.9% 0.00% $429K 2026-02-13 $5.40
2025 Q3 ADDED 49,429 +24,016 +94.5% 0.00% $304K 2025-11-14 (Est.) $4.05
2025 Q2 REDUCED 76.1% -30.0% 25,413 -80,718 -76.1% 0.00% $226K 2025-08-14 (Est.) $7.27
2025 Q1 ADDED 106,131 +88,124 +489.4% 0.00% $836K 2025-05-15 $7.48
2024 Q4 REDUCED 58.4% +8.7% 18,007 -25,241 -58.4% 0.00% $131K 2025-02-13 $11.73
2024 Q3 INITIATED 43,248 0.00% $410K 2024-11-14 $8.55

FAQ About MARSHALL WACE, LLP and AMWL

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

How long has MARSHALL WACE, LLP reported owning AMWL?

MARSHALL WACE, LLP reported AMWL across 7 quarterly 13F filings, from 2024 Q3 through 2026 Q1.

What was the largest reported AMWL position in MARSHALL WACE, LLP's portfolio?

The largest reported portfolio weight for AMWL was 0.00% in 2025 Q1.

What is the latest reported AMWL position on this page?

The most recent filing on this page is 2026 Q1, when MARSHALL WACE, LLP reported 44,045 shares, equal to 0.00% of portfolio, with an estimated market value of $232K.

What does the chart on this AMWL ownership page compare?

The chart compares MARSHALL WACE, LLP's quarterly AMWL 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 MARSHALL WACE, LLP time their AMWL position?

Based on 13F filing dates vs. subsequent AMWL price moves, MARSHALL WACE, LLP correctly timed 5 out of 6 reported position changes (83%). The annualised alpha on AMWL relative to SPY over the holding period was -21.3%.

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