DUOL Duolingo (DUOL) Insider Trading, Ownership & Congress Trades
Software & IT · Services-prepackaged software · CIK 0001562088
Form 144 · 13
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
267
13F, latest reported quarter
Conversions, 180 days
10
Codes C/M, not in net · $7.4M priced
What the filings say about DUOL
Insiders, 180 days
-$38.8M net sold
5 sellers · 64% of sales under a 10b5-1 plan
Congress, 1 year
No trades
Last one: sale, 2025-08-13
Planned sales (Form 144), 90 days
$46.3M
13 notices
Duolingo insider trades (Form 4)
Form 4 buys and sells (codes P and S). Grants, option exercises
and conversions excluded.
Over the last 180 days, Duolingo, Inc. insiders sold a net $38.8M of stock across 1,593 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-27.
Insider
Filed
Shares
Value
Since filing
Context
- 159 earlier Form 4 trades (code P or S) here by this insider (159 sales), the last on Sep 24, 2026.
- The trade is 22.2% of the 90,021 shares held after it.
- 2 other insiders sold within 30 days.
- 267 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President & CEO, Co-Founder von Ahn Luis sold about $3.0M of DUOL under a 10b5-1 plan on Oct 7, 2026; 2 other insiders sold within 30 days and 267 funds added in the latest 13F quarter.Context
- 159 earlier Form 4 trades (code P or S) here by this insider (159 sales), the last on Sep 24, 2026.
- The trade is 157.3% of the 34,985 shares held after it.
- 2 other insiders sold within 30 days.
- 267 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President & CEO, Co-Founder von Ahn Luis sold about $8.3M of DUOL under a 10b5-1 plan on Oct 7, 2026, the largest insider sale at the company since 2024; 2 other insiders sold within 30 days and 267 funds added in the latest 13F quarter.Context
- 159 earlier Form 4 trades (code P or S) here by this insider (159 sales), the last on Sep 24, 2026.
- The trade is 584.1% of the 5,114 shares held after it.
- 2 other insiders sold within 30 days.
- 267 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President & CEO, Co-Founder von Ahn Luis sold about $4.6M of DUOL under a 10b5-1 plan on Oct 7, 2026; 2 other insiders sold within 30 days and 267 funds added in the latest 13F quarter.Context
- 159 earlier Form 4 trades (code P or S) here by this insider (159 sales), the last on Sep 24, 2026.
- 2 other insiders sold within 30 days.
- 267 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President & CEO, Co-Founder von Ahn Luis sold about $783.8K of DUOL under a 10b5-1 plan on Oct 7, 2026; 2 other insiders sold within 30 days and 267 funds added in the latest 13F quarter.Context
- 156 earlier Form 4 trades (code P or S) here by this insider (156 sales), the last on Sep 22, 2026.
- The trade is 489.1% of the 7,924 shares held after it.
- 2 other insiders sold within 30 days.
- 267 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: President & CEO, Co-Founder von Ahn Luis sold about $5.8M of DUOL under a 10b5-1 plan on Sep 24, 2026, the largest insider sale at the company since 2024; 2 other insiders sold within 30 days and 267 funds added in the latest 13F quarter.1,593 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Seven facts, ranked against the sector ·
Rank is not a forecast
Insiders
net -$38.8M over 180 days
-$37.7M over 90 days · -$34.1M of it by a 10%+ holder
below 83% of Software & IT
Congress
no House purchase disclosed in the last 12 months
Funds
267 funds bought in last quarter
more than 83% of Software & IT
Revenue
+38.7% year over year
more than 83% of Software & IT
Margin
39.9% net margin
more than 95% of Software & IT
Buybacks
$69.6M repurchased, FY to 2026-06-30
below 55% of Software & IT
Short interest
17.9% of the float short (float per yahoo 2026-10-26) · 6.7 days to cover · settled 2026-09-30
What changed in the last 30 days
Oct 9President & CEO, Co-Founder von Ahn Luis sold $23.7M under a 10b5-1 plan (7 trades, Sep 24 to Oct 7)
Why it matters
A 10b5-1 plan schedules trades months ahead, so this says little about what the insider thinks today.
Oct 7Director LUIS VON AHN ARELLANO filed to sell $16.3M by Oct 7 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.
Watch DUOL
A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.
The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-53.5%12M
Insider buyInsider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart.
When a name files heavily, the largest trades are drawn first.
Who owns DUOL: institutional holders (13F)
13F holdings, latest reported quarter
4,824,298 sh
$554.9M
3,867,080 sh
$444.8M
2,332,543 sh
$268.3M
1,745,689 sh
$200.8M
1,629,242 sh
$187.4M
Congress trades in DUOL
STOCK Act disclosures, US House only, filed up to 45 days after the trade
Sold 2025-08-13 · disclosed 30 days later
$1,001 - $15,000
Sold 2025-06-24 · disclosed 50 days later
$1,001 - $15,000
Bought 2025-06-17 · disclosed 57 days later
$1,001 - $15,000
Activist and 5% holders (13D/13G)
No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.
DUOL planned insider sales (Form 144)
Notice of intent to sell, filed before any sale
LUIS VON AHN ARELLANO
Filed 2026-10-07
$16.3M
LUIS VON AHN ARELLANO
Filed 2026-09-24
$6.8M
LUIS VON AHN ARELLANO
Filed 2026-09-22
$540.0K
LUIS VON AHN ARELLANO
Filed 2026-09-21
$5.3M
LUIS VON AHN FOUNDATION
Filed 2026-09-21
$5.0M
DUOL mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
Invesco S&P MidCap 400 GARP ETF
$13.1M position · as of 2026-07-31
2.7%
MIDAS SPECIAL OPPORTUNITIES
$643.9K position · as of 2026-06-30
2.2%
First Trust Consumer Discretionary AlphaDEX Fund
$3.8M position · as of 2026-07-31
1.4%
Federated Hermes MDT Mid Cap Growth Fund
$92.4M position · as of 2026-07-31
1.4%
VANGUARD BAILLIE GIFFORD GLOBAL POSITIVE IMPACT STOCK FUND
$3.9M position · as of 2026-06-30
1.3%
Mid-Cap Growth Portfolio
$8.7M position · as of 2026-06-30
1.3%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Executive pay vs shareholder return · (1)
CEO pay, headline and as actually paid, against the company's
return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2025
$767.5K
-$44.2M
$4.3M
+26%
+9%
2024
$767.2K
$129.0M
$3.4M
+133%
+10%
2023
$766.5K
$139.9M
$3.1M
+63%
-12%
2022
$765.2K
-$31.6M
$3.2M
-49%
-37%
2021
$74.4M
$78.0M
$19.7M
-24%
-4%
Tagged by the company under SEC Item 402(v). Returns are
cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $38.8M sold by insiders over 180 days, 267 funds added last quarter, $46.3M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
DUOL financials
Revenue growth
+38.7%
XBRL, annual
Net margin
39.9%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$1.1B
four quarters, 2025-07-01 to 2026-06-30
Revenue, TTM DUOL
| FY Dec 2025 | $1.0B |
| FY Dec 2024 | $748.0M |
| FY Dec 2023 | $531.1M |
| FY Dec 2022 | $369.5M |
| FY Dec 2021 | $250.8M |
| Jun 2026 | $298.5M |
| Mar 2026 | $292.0M |
| Dec 2025 | $282.9M |
| Sep 2025 | $271.7M |
| Jun 2025 | $252.3M |
| Mar 2025 | $230.7M |
| Dec 2024 | $209.6M |
| Sep 2024 | $192.6M |
At each fiscal year end
Single quarter
Net margin, TTM
+35.9%
net income over revenue, 2025-07-01 to 2026-06-30
Net margin, TTM DUOL
| FY Dec 2025 | +39.9% |
| FY Dec 2024 | +11.8% |
| FY Dec 2023 | +3.0% |
| FY Dec 2022 | -16.1% |
| FY Dec 2021 | n/a |
| Jun 2026 | +11.1% |
| Mar 2026 | +14.9% |
| Dec 2025 | +14.8% |
| Sep 2025 | +107.5% |
| Jun 2025 | +17.8% |
| Mar 2025 | +15.2% |
| Dec 2024 | +6.5% |
| Sep 2024 | +12.1% |
At each fiscal year end
Single quarter
Free cash flow, TTM
$407.9M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM DUOL
| FY Dec 2025 | $369.7M |
| FY Dec 2024 | $273.4M |
| FY Dec 2023 | $150.4M |
| FY Dec 2022 | $48.1M |
| FY Dec 2021 | $5.6M |
| Jun 2026 | $81.4M |
| Mar 2026 | $150.6M |
| Dec 2025 | $96.6M |
| Sep 2025 | $79.4M |
| Jun 2025 | $89.5M |
| Mar 2025 | $104.3M |
| Dec 2024 | $81.4M |
| Sep 2024 | $53.1M |
At each fiscal year end
Single quarter
Debt to equity
n/a
no debt line filed
Debt to equity DUOL
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
n/a
no debt line filed
Cash flow to debt DUOL
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
+34.4%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on equity DUOL
| FY Dec 2025 | +38.1% |
| FY Dec 2024 | +11.9% |
| FY Dec 2023 | +2.7% |
| FY Dec 2022 | -11.3% |
| FY Dec 2021 | n/a |
| Jun 2026 | +34.4% |
| Mar 2026 | +37.0% |
| Dec 2025 | +38.1% |
| Sep 2025 | +36.2% |
| Jun 2025 | +13.4% |
| Mar 2025 | +12.0% |
| Dec 2024 | +11.9% |
| Sep 2024 | +12.1% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
+22.7%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets DUOL
| FY Dec 2025 | +25.1% |
| FY Dec 2024 | +7.8% |
| FY Dec 2023 | +1.9% |
| FY Dec 2022 | -8.5% |
| FY Dec 2021 | n/a |
| Jun 2026 | +22.7% |
| Mar 2026 | +24.4% |
| Dec 2025 | +25.1% |
| Sep 2025 | +24.8% |
| Jun 2025 | +8.7% |
| Mar 2025 | +7.8% |
| Dec 2024 | +7.8% |
| Sep 2024 | +8.3% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
effective tax rate -103%, not meaningful
Return on invested capital DUOL
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
+12.2%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed DUOL
| FY Dec 2025 | +11.7% |
| FY Dec 2024 | +8.0% |
| FY Dec 2023 | -2.1% |
| FY Dec 2022 | -11.8% |
| FY Dec 2021 | -18.4% |
| Jun 2026 | +12.2% |
| Mar 2026 | +12.9% |
| Dec 2025 | +11.7% |
| Sep 2025 | +9.3% |
| Jun 2025 | +8.9% |
| Mar 2025 | +8.1% |
| Dec 2024 | +8.0% |
| Sep 2024 | +7.1% |
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
16.95x
close 2026-10-23 over four quarters of diluted EPS, 2025-07-01 to 2026-06-30
P/E, trailing DUOL
| FY Dec 2025 | 20.60x |
| FY Dec 2024 | 172.46x |
| FY Dec 2023 | 667.21x |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | 13.63x |
| Mar 2026 | 11.34x |
| Dec 2025 | 20.60x |
| Sep 2025 | 40.79x |
| Jun 2025 | 168.73x |
| Mar 2025 | 152.98x |
| Dec 2024 | 172.46x |
| Sep 2024 | 154.11x |
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
n/a
no share count filed
Enterprise value DUOL
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
n/a
no share count filed
FCF yield DUOL
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
0.07x
P/E over trailing EPS growth of 247%: four quarters to 2026-06-30 against the four to 2025-06-30
PEG, trailing DUOL
| FY Dec 2025 | 0.06x |
| FY Dec 2024 | 0.38x |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | 0.06x |
| Mar 2026 | 0.03x |
| Dec 2025 | 0.06x |
| Sep 2025 | 0.12x |
| Jun 2025 | 2.29x |
| Mar 2025 | 1.40x |
| Dec 2024 | 0.38x |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-23. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
| 2025-12 | 2024-12 | 2023-12 | 2022-12 | |
|---|---|---|---|---|
| Revenue | $1.0B | $748.0M | $531.1M | $369.5M |
| Gross profit | $749.5M | $544.4M | $389.0M | $270.1M |
| Operating income | $135.6M | $62.6M | -$13.3M | -$65.2M |
| Net income | $414.1M | $88.3M | $16.1M | -$59.6M |
| EPS (diluted) | 8.57 | 1.88 | 0.35 | -1.51 |
| Operating cash flow | $387.8M | $285.5M | $153.6M | $53.7M |
| Cash | $1.0B | $785.8M | $747.6M | $608.2M |
| Buybacks | n/a | n/a | $0 | $0 |
SEC XBRL, fiscal years, as known on 2026-10-27
DUOL Stock Sonar score 5/7 axes
Find similar shapesCompareDUOL ranks highest on profitability (86th percentile) and growth (83rd), and lowest on insider conviction (24th), among Software & IT peers.
5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
DUOL filings, in plain words
Are Duolingo insiders buying or selling DUOL?
In the 180 days to 2026-10-27, Duolingo insiders were net sellers, a net $38.8M across purchases and sales reported on Form 4, by 5 sellers.
Have members of Congress traded DUOL?
Yes, but not in the year to 2026-10-27; the latest on record is a sale by Lisa McClain dated 2025-08-13.
Are there planned insider sales of DUOL?
Yes. 13 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-27, covering $46.3M of stock; the latest, by LUIS VON AHN ARELLANO, was filed 2026-10-07.
Read the full summary
In the 180 days to 2026-10-27, Duolingo insiders were net sellers of DUOL, a net $38.8M across purchases and sales reported on Form 4 by 5 sellers. Most of that figure, $34.1M, came from a holder of 10% or more rather than an officer or director. 64% of the 33 insider sales were made under a Rule 10b5-1 plan; the rest were not flagged as planned. Members of Congress have disclosed trades in DUOL, none in the last year; the latest on record is a sale by Lisa McClain dated 2025-08-13. Insiders filed 13 Form 144 notices of intent to sell in the 90 days to 2026-10-27, covering $46.3M of stock. Each figure is counted from SEC and House filings as of 2026-10-27, dated the day the filing was made public.
Explore insider trading and ownership data
Every company we track, ranked by each kind of filing
