Company · Ownership research

Duolingo, Inc. DUOL

CIK 0001562088

Form 4 transactions dated Sep 1, 2023 to Sep 26, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-09-10.

Insider purchases & sales

Purchased: $498.79K
Sold: $510.83M

Sep 1, 2023 – Sep 10, 2026
Available records · partial months are marked ·

2023, from Sep 1, 202310 of 25 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2023-12-11	Meese Robert Chief Business Officer	Sale10b5-1 footnote	$7.56M 35,000 shares sold	18.18% sold Direct holding	▾
2023-12-01	Skaruppa Matthew Chief Financial Officer	Sale10b5-1 footnote	$1.70M 8,000 shares sold	13.57% sold Direct holding	▾
2023-12-01	Hacker Severin Chief Tech Officer, Co-Founder · Director · 10% owner	Sale10b5-1 footnote	$2.13M 10,000 shares sold	100.00% sold Indirect holding	▾
2023-11-17	Skaruppa Matthew Chief Financial Officer	Sale10b5-1 footnote	$571.36K 2,698 shares sold	5.03% sold Direct holding	▾
2023-11-15	Meese Robert Chief Business Officer	Sale	$324.11K 1,545 shares sold	0.80% sold Direct holding	▾
2023-11-15	Chen Stephen C. General Counsel	Sale	$207.26K 988 shares sold	2.74% sold Direct holding	▾
2023-11-15	Glance Natalie Chief Engineering Officer	Sale	$519.42K 2,476 shares sold	1.48% sold Direct holding	▾
2023-11-15	Skaruppa Matthew Chief Financial Officer	Sale	$517.95K 2,469 shares sold	4.40% sold Direct holding	▾
2023-11-09	von Ahn Luis President & CEO, Co-Founder · Director · 10% owner	Sale10b5-1 footnote	$200.00K 1,000 shares sold	100.00% sold Direct holding	▾
2023-11-09	Durable Capital Partners LP 10% owner	Sale	$35.05M 177,000 shares sold	4.74% sold Indirect holding	▾

Showing 25 / 25 record groups in 2023. The complete set is available through the API.

Duolingo, Inc. · DUOL

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 25 of 25 purchase / sale groups and 28 of 28 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"DUOL","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.