Scientech Research LLC DUOL — DUOLINGO INC

Ownership history in Scientech Research LLC  ·  8 quarters on record

AI Ownership Summary

Scientech Research LLC reported DUOLINGO INC (DUOL) in 8 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 1.04% in 2023 Q4. The latest visible filing shows DUOL at 0.59% 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 DUOL ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Scientech Research LLC's position in DUOLINGO 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
2025 Q4

DUOL was reported at 0.59% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.04% in 2023 Q4

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 2025 Q4

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.

DUOL stock page Scientech Research LLC fund profile Scientech Research LLC full holdings
How Scientech Research LLC held DUOL — position size vs. price
% of Fund (quarterly)    DUOL 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)
2025 Q4 ADDED — — — 5,385 +3,720 +223.4% 0.59% $945K 2026-02-14 (Est.) $112.57
2025 Q3 REDUCED 41.3% -44.0% ✅ 1,665 -1,172 -41.3% 0.19% $536K 2025-11-14 $185.07
2025 Q2 REDUCED 45.8% -19.8% ✅ 2,837 -2,396 -45.8% 0.28% $1.2M 2025-08-14 $329.88
2024 Q4 REDUCED 58.6% -4.2% ✅ 5,233 -7,416 -58.6% 0.48% $1.7M 2025-02-14 $432.69
2024 Q3 ADDED — — — 12,649 +3,317 +35.5% 0.71% $3.6M 2024-11-14 $322.57
2024 Q2 ADDED — — — 9,332 +5,805 +164.6% 0.40% $1.9M 2024-08-14 $197.07
2024 Q1 REDUCED 23.8% -11.5% ✅ 3,527 -1,101 -23.8% 0.41% $778K 2024-05-15 $177.30
2023 Q4 INITIATED — — — 4,628 — — 1.04% $1.0M 2024-02-14 $189.56

🏢 Other funds also holding DUOL

As of 2026 Q1 — sorted by position size

Audent Global Asset Management, LLC 3Y 2.13% Ground Swell Capital, LLC 3Y 7Y 1.94% STATE OF MICHIGAN RETIREMENT SYSTEM 3Y 7Y 0.62% BAILLIE GIFFORD & CO 3Y 7Y 0.49% Green Alpha Advisors, LLC 3Y 0.24% Rakuten Securities, Inc. 0.23% Legacy Wealth Managment, LLC/ID 0.22% Ahara Advisors LLC 0.21% Bayforest Capital Ltd 0.19% FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. 0.14%

FAQ About Scientech Research LLC and DUOL

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

How long has Scientech Research LLC reported owning DUOL?

Scientech Research LLC reported DUOL across 8 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported DUOL position in Scientech Research LLC's portfolio?

The largest reported portfolio weight for DUOL was 1.04% in 2023 Q4.

What is the latest reported DUOL position on this page?

The most recent filing on this page is 2025 Q4, when Scientech Research LLC reported 5,385 shares, equal to 0.59% of portfolio, with an estimated market value of $945K.

What does the chart on this DUOL ownership page compare?

The chart compares Scientech Research LLC's quarterly DUOL 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 Scientech Research LLC time their DUOL position?

Based on 13F filing dates vs. subsequent DUOL price moves, Scientech Research LLC correctly timed 5 out of 7 reported position changes (71%). The annualised alpha on DUOL relative to SPY over the holding period was -34.9%.

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