DUOL Duolingo, Inc.

NASDAQ
$146.57

Duolingo, Inc. (DUOL) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

Insider signal In line Selling ran in line with DUOL's own trailing one-year pace, with 92% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 5 sellers in the last 90 days
Insiders buying
1
1 transaction
Insiders selling
7
116 transactions
Purchases
$498.8K
5,000 shares
Sales
$38.2M
223,525 shares
Net activity
-$37.7M
purchases less sales

How much of that selling was preplanned? 92% planned / 8% discretionary

10b5-1 plan sales $35.0M 102 transactions · 200,661 shares
Discretionary sales $3.2M 14 transactions · 22,864 shares

Largest single sale: $5.8M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: March 3, 2026 , by Shelton James H .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
von Ahn Luis 3 fills President & CEO, Co-Founder Sell 10b5-1 46,682 $150.63 $7.0M 7,924 −85.5% of holding
von Ahn Luis 2 fills President & CEO, Co-Founder Sell 10b5-1 3,614 $151.91 $549.0K 3,414 −51.4% of holding
von Ahn Luis 2 fills President & CEO, Co-Founder Sell 10b5-1 37,366 $150.53 $5.6M 4,109 −90.1% of holding
von Ahn Luis 2 fills President & CEO, Co-Founder Sell 10b5-1 28,292 $150.22 $4.3M 1,020 −96.5% of holding
Chen Stephen C. 2 fills General Counsel Sell 10b5-1 8,072 $149.33 $1.2M 49,734 −14% of holding
GORDON WILLIAM B 6 fills Director Sell 10b5-1 10,000 $145.67 $1.5M 77,615 −11.4% of holding
Glance Natalie 2 fills Chief Engineering Officer Sell 10b5-1 1,539 $137.80 $212.1K 170,148 −0.9% of holding
Glance Natalie Chief Engineering Officer Sell 2,751 $129.13 $355.2K 170,650 −1.6% of holding
Meese Robert Chief Business Officer Sell 1,354 $129.13 $174.8K 169,391 −0.8% of holding
Chen Stephen C. General Counsel Sell 1,024 $129.13 $132.2K 51,841 −1.9% of holding
Glance Natalie 2 fills Chief Engineering Officer Sell 10b5-1 3,360 $113.59 $381.7K 174,701 −1.9% of holding
Chen Stephen C. 2 fills General Counsel Sell 10b5-1 1,977 $113.61 $224.6K 53,507 −3.6% of holding
Glance Natalie Chief Engineering Officer Sell 1,929 $112.16 $216.4K 176,761 −1.1% of holding
Meese Robert Chief Business Officer Sell 1,420 $112.16 $159.3K 170,745 −0.8% of holding
Chen Stephen C. General Counsel Sell 820 $112.16 $92.0K 54,784 −1.5% of holding
Shelton James H Director Buy 5,000 $99.76 $498.8K 9,632
Skaruppa Matthew 4 fills Chief Financial Officer Sell 10b5-1 3,986 $113.52 $452.5K 33,991 −10.5% of holding
Glance Natalie 4 fills Chief Engineering Officer Sell 10b5-1 3,545 $113.51 $402.4K 117,426 −2.9% of holding
Chen Stephen C. 4 fills General Counsel Sell 10b5-1 1,901 $113.26 $215.3K 31,625 −5.7% of holding
Skaruppa Matthew Chief Financial Officer Sell 1,870 $110.06 $205.8K 35,617 −5% of holding
Glance Natalie Chief Engineering Officer Sell 1,741 $110.06 $191.6K 118,925 −1.4% of holding
Meese Robert Chief Business Officer Sell 1,000 $110.06 $110.1K 122,636 −0.8% of holding
Chen Stephen C. General Counsel Sell 896 $110.06 $98.6K 32,446 −2.7% of holding
Hacker Severin 8 fills Chief Tech Officer, Co-Founder Sell 10b5-1 10,000 $172.74 $1.7M 8,926 −52.8% of holding
Skaruppa Matthew 5 fills Chief Financial Officer Sell 10b5-1 3,059 $175.76 $537.6K 40,156 −7.1% of holding
Glance Natalie 5 fills Chief Engineering Officer Sell 10b5-1 2,471 $175.79 $434.4K 113,477 −2.1% of holding
Chen Stephen C. 4 fills General Counsel Sell 10b5-1 1,514 $175.87 $266.3K 32,936 −4.4% of holding
Skaruppa Matthew Chief Financial Officer Sell 2,799 $177.95 $498.1K 40,546 −6.5% of holding
Glance Natalie Chief Engineering Officer Sell 2,534 $177.95 $450.9K 113,637 −2.2% of holding
Meese Robert Chief Business Officer Sell 1,444 $177.95 $257.0K 123,636 −1.2% of holding
Chen Stephen C. General Counsel Sell 1,282 $177.95 $228.1K 33,056 −3.7% of holding
Hacker Severin 10 fills Chief Tech Officer, Co-Founder Sell 10b5-1 10,000 $263.13 $2.6M 9,328 −51.7% of holding
Hacker Severin 15 fills Chief Tech Officer, Co-Founder Sell 10b5-1 10,000 $314.72 $3.1M 9,972 −50.1% of holding
Hacker Severin 11 fills Chief Tech Officer, Co-Founder Sell 10b5-1 10,000 $321.63 $3.2M 9,572 −51.1% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.