Comparable stake leader
BAILLIE GIFFORD & CO
SEC ownership of Duolingo, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001562088.
Disclosed value leader
Severin Hacker
Comparable rows
7/50
Latest evidence
30 Sep 2026
- Public ticker
- DUOL on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BAILLIE GIFFORD & CO
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
7 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BAILLIE GIFFORD & CO
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001562088
- Issuer location
- Pittsburgh, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Duolingo, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BAILLIE GIFFORD & CO
Disclosed value leader
Severin Hacker
Comparable rows
7/50
Latest evidence
30 Sep 2026
13D/G
13F
3/4/5
Lead comparable stake: 11%
43 rows are not safely comparable across share classes.
13D/G row: BAILLIE GIFFORD & CO
Showing 1-8 of 50 holder rows.
Quick read
BAILLIE GIFFORD & CO leads the comparable SEC ownership view at 11%.
7 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BAILLIE GIFFORD & CO's linked filing trail.
Comparable ownership
Top 5
BAILLIE GIFFORD & CO
11%
Luis von Ahn
8.2%
Severin Hacker
7.6%
AQR CAPITAL MANAGEMENT LLC
5.8%
VANGUARD CAPITAL MANAGEMENT LLC
4.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BAILLIE GIFFORD & CO |
13D/G
13F
Company
|
11%
Reported 13D/G
· 30 Sep 2026
|
$648,616,906
4,554,894 shares
|
-$49,239,784 | 30 Sep 2026 |
| Luis von Ahn |
13D/G
3/4/5
Von Ahn Luis · President & CEO, Co-Founder, Director, 10%+ Owner
|
8.2%
Reported 13D/G
· 30 Jun 2026
|
$467,055,894
3,594,120 shares
|
$0 | 30 Jun 2026 |
| Severin Hacker |
13D/G
3/4/5
Hacker Severin · Chief Tech Officer, Co-Founder, Director, 10%+ Owner
|
7.6%
Reported 13D/G
· 31 Mar 2025
|
$1,221,212,998
3,198,316 shares
|
$0 | 31 Mar 2025 |
| AQR CAPITAL MANAGEMENT LLC |
13D/G
13F
Company
|
5.8%
Reported 13D/G
· 30 Jun 2026
|
$303,113,963
2,332,543 shares
|
$0 | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
4.8%
Reported 13D/G
· 30 Sep 2026
|
$275,457,421
1,934,392 shares
|
-$17,158,061 | 30 Sep 2026 |
| Durable Capital Partners LP |
3/4/5
13D/G
10%+ Owner
|
4.3%
Reported 13D/G
· 31 Mar 2025
|
$761,629,168
3,556,688 shares
|
— | 09 Nov 2023 |
| FMR LLC |
13F
13D/G
Company
|
2.7%
Reported 13D/G
· 31 Mar 2026
|
$130,103,244
1,131,136 shares
|
— | 30 Jun 2026 |
| CapitalG 2014 LP |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$130,364,762
1,024,675 shares
mixed-class rows
|
— | 13 Jul 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$46,348,698.
Buys
$498,792
Insiders: 1
Sells
$46,847,490
Insiders: 7
Net
-$46,348,698
Shares: -308,988
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 5,000
Shares: 313,988
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 264,440 | $0 | $39,697,514 | -$39,697,514 |
| 3-6 | 0 | 9,506 | $0 | $1,073,854 | -$1,073,854 |
| 6-9 | 5,000 | 14,939 | $498,792 | $1,676,308 | -$1,177,516 |
| 9-12 | 0 | 25,103 | $0 | $4,399,814 | -$4,399,814 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 21 reporting-owner rows connected to Duolingo, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
Durable Capital Partners LP
Net 12M change
-$46.35M
Full value: -$46,348,699 · USD · 12-month changeLatest report
04 Nov 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Durable Capital Partners LP | 10%+ Owner | $761,629,168 | Mixed | 09 Nov 2023 | ||
| Severin Hacker | Chief Tech Officer, Co-Founder, Director, 10%+ Owner | $473,739,374 | -$1,727,441 | -0.36% | Mixed | 27 May 2026 |
| Luis von Ahn | President & CEO, Co-Founder, Director, 10%+ Owner | $390,424,647 | -$34,149,662 | -8% | Mixed | 07 Oct 2026 |
| CapitalG 2014 LP | 10%+ Owner | $130,364,762 | Mixed | 13 Jul 2022 | ||
| NewView Capital Fund I, L.P. | 10%+ Owner | $76,968,961 | Mixed | 08 Jul 2022 | ||
| Gillian Munson | Chief Financial Officer | $24,159,681 | Mixed | 25 Mar 2026 | ||
| Natalie Glance | Chief Engineering Officer | $23,383,893 | -$2,644,637 | -10% | Mixed | 17 Aug 2026 |
| Robert Meese | Chief Business Officer | $22,080,495 | -$701,129 | -3.1% | Mixed | 17 Aug 2026 |
| William B. Gordon | Director | $8,131,321 | -$2,820,581 | -26% | Filing P/S | 02 Nov 2026 |
| Stephen C. Chen | General Counsel | $7,012,075 | -$3,110,012 | -31% | Filing P/S | 04 Nov 2026 |
| KPCB DGF Associates, LLC | 10%+ Owner | $5,703,833 | Mixed | 07 Mar 2022 | ||
| Matthew Skaruppa | Chief Financial Officer | $3,646,630 | -$1,694,029 | -32% | Filing P/S | 17 Feb 2026 |
| James H. Shelton | Director | $1,687,868 | +$498,792 | +42% | Median | 10 Oct 2026 |
| John Osborne Lilly III | Director | $1,298,831 | Median | 10 Oct 2026 | ||
| Amy Bohutinsky | Director | $1,105,879 | Median | 10 Oct 2026 | ||
| Union Square Ventures 2012 Fund, L.P. | 10%+ Owner | $992,053 | Mixed | 15 Nov 2021 | ||
| Laela Sturdy | Director | $910,737 | Mixed | 15 Jun 2023 | ||
| Mario Schlosser | Director | $623,427 | Median | 10 Oct 2026 | ||
| Sara Clemens | Director | $586,984 | Mixed | 03 Jun 2026 | ||
| Sallie Krawcheck | Director | $528,171 | Mixed | 10 Aug 2026 |
Recent insider transactions for Duolingo, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Stephen C. Chen | DUOL | Class A Common Stock | Sale | -8.45% | -$647,500 | $175.00 | -3,700 | 40,069 | 04 Nov 2026 | Direct |
| William B. Gordon | DUOL | Class A Common Stock | Sale | -14.6% | -$1,363,845 | $136.38 | -10,000 | 58,415 | 02 Nov 2026 | Direct |
| James H. Shelton | DUOL | Class A Common Stock | Award | 0.85% | 100 | 11,853 | 10 Oct 2026 | Direct | ||
| Mario Schlosser | DUOL | Class A Common Stock | Award | 2.72% | 116 | 4,378 | 10 Oct 2026 | Direct | ||
| John Osborne Lilly III | DUOL | Class A Common Stock | Award | 1.09% | 98 | 9,121 | 10 Oct 2026 | Direct | ||
| Amy Bohutinsky | DUOL | Class A Common Stock | Award | 1.41% | 108 | 7,766 | 10 Oct 2026 | Direct | ||
| Luis von Ahn | DUOL | Class A Common Stock | Sale | -100% | -$16,694,000 | $151.70 | -110,046 | 0 | 07 Oct 2026 | Direct |
| Luis von Ahn | DUOL | Class A Common Stock | Conversion of derivative security | 110,046 | 110,046 | 07 Oct 2026 | Direct | |||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | -3.16% | -110,046 | 3,368,120 | 07 Oct 2026 | Direct | ||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | 3.27% | 110,046 | 3,478,166 | 07 Oct 2026 | Direct | ||
| Luis von Ahn | DUOL | Stock Option (Right to Buy) | Options Exercise | -100% | -110,046 | 0 | 07 Oct 2026 | Direct | ||
| Luis von Ahn | DUOL | Class A Common Stock | Sale | -100% | -$7,031,794 | $150.63 | -46,682 | 0 | 24 Sep 2026 | Direct |
| Luis von Ahn | DUOL | Class A Common Stock | Conversion of derivative security | 46,682 | 46,682 | 24 Sep 2026 | Direct | |||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | -1.37% | -46,682 | 3,368,120 | 24 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | 1.39% | 46,682 | 3,414,802 | 24 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Stock Option (Right to Buy) | Options Exercise | -29.8% | -46,682 | 110,046 | 24 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Class A Common Stock | Sale | -100% | -$548,996 | $151.91 | -3,614 | 0 | 22 Sep 2026 | Direct |
| Luis von Ahn | DUOL | Class A Common Stock | Conversion of derivative security | 3,614 | 3,614 | 22 Sep 2026 | Direct | |||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | -0.11% | -3,614 | 3,368,120 | 22 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | 0.11% | 3,614 | 3,371,734 | 22 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Stock Option (Right to Buy) | Options Exercise | -2.25% | -3,614 | 156,728 | 22 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Class A Common Stock | Sale | -100% | -$5,624,731 | $150.53 | -37,366 | 0 | 21 Sep 2026 | Direct |
| Luis von Ahn | DUOL | Class A Common Stock | Conversion of derivative security | 37,366 | 37,366 | 21 Sep 2026 | Direct | |||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | -1.1% | -37,366 | 3,368,120 | 21 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | 1.11% | 37,366 | 3,396,080 | 21 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Stock Option (Right to Buy) | Options Exercise | -100% | -37,366 | 0 | 21 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Class A Common Stock | Sale | -100% | -$4,250,141 | $150.22 | -28,292 | 0 | 16 Sep 2026 | Direct |
| Luis von Ahn | DUOL | Class A Common Stock | Conversion of derivative security | 28,292 | 28,292 | 16 Sep 2026 | Direct | |||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | -0.83% | -28,292 | 3,368,120 | 16 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Class B Common Stock | Conversion of derivative security | 0.84% | 28,292 | 3,391,160 | 16 Sep 2026 | Direct | ||
| Luis von Ahn | DUOL | Stock Option (Right to Buy) | Options Exercise | -50.3% | -28,292 | 27,960 | 16 Sep 2026 | Direct | ||
| Stephen C. Chen | DUOL | Class A Common Stock | Sale | -15.6% | -$1,205,385 | $149.33 | -8,072 | 43,769 | 14 Sep 2026 | Direct |
| William B. Gordon | DUOL | Class A Common Stock | Sale | -12.8% | -$1,456,736 | $145.67 | -10,000 | 68,415 | 08 Sep 2026 | Direct |
| Natalie Glance | DUOL | Class A Common Stock | Sale | -0.9% | -$212,079 | $137.80 | -1,539 | 169,111 | 18 Aug 2026 | Direct |
| Natalie Glance | DUOL | Class A Common Stock | Sale | -1.59% | -$355,237 | $129.13 | -2,751 | 170,650 | 17 Aug 2026 | Direct |
| Robert Meese | DUOL | Class A Common Stock | Sale | -0.79% | -$174,842 | $129.13 | -1,354 | 169,391 | 17 Aug 2026 | Direct |
| Stephen C. Chen | DUOL | Class A Common Stock | Sale | -1.94% | -$132,229 | $129.13 | -1,024 | 51,841 | 17 Aug 2026 | Direct |
| Sallie Krawcheck | DUOL | Class A Common Stock | Award | 4,592 | 4,592 | 10 Aug 2026 | Direct | |||
| James H. Shelton | DUOL | Class A Common Stock | Award | 1.03% | 120 | 11,753 | 10 Jul 2026 | Direct | ||
| Amy Bohutinsky | DUOL | Class A Common Stock | Award | 1.73% | 130 | 7,658 | 10 Jul 2026 | Direct | ||
| Mario Schlosser | DUOL | Class A Common Stock | Award | 3.4% | 140 | 4,262 | 10 Jul 2026 | Direct | ||
| John Osborne Lilly III | DUOL | Class A Common Stock | Award | 1.33% | 118 | 9,023 | 10 Jul 2026 | Direct | ||
| Stephen C. Chen | DUOL | Class A Common Stock | Options Exercise | 0.11% | 58 | 52,865 | 17 Jun 2026 | Direct | ||
| Stephen C. Chen | DUOL | Stock Option (Right to Buy) | Options Exercise | -100% | -58 | 0 | 17 Jun 2026 | Direct | ||
| James H. Shelton | DUOL | Class A Common Stock | Award | 20.8% | 2,001 | 11,633 | 03 Jun 2026 | Direct | ||
| Sara Clemens | DUOL | Class A Common Stock | Award | 50.6% | 2,001 | 5,955 | 03 Jun 2026 | Direct | ||
| Amy Bohutinsky | DUOL | Class A Common Stock | Award | 36.2% | 2,001 | 7,528 | 03 Jun 2026 | Direct | ||
| John Osborne Lilly III | DUOL | Class A Common Stock | Award | 29% | 2,001 | 8,905 | 03 Jun 2026 | Direct | ||
| William B. Gordon | DUOL | Class A Common Stock | Award | 2.62% | 2,001 | 78,415 | 03 Jun 2026 | Direct | ||
| Mario Schlosser | DUOL | Class A Common Stock | Award | 94.3% | 2,001 | 4,122 | 03 Jun 2026 | Direct |
* marks a reported price that did not pass the local price check.