Insider

Severin Hacker Insider Trading Activity

Every SEC Form 4 transaction reported by Severin Hacker, sourced directly from SEC EDGAR and updated as new filings are accepted.

By · Insider-trading data from SEC EDGAR
Latest filing:

Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.

Quick Answer

Is Severin Hacker buying or selling?

Severin Hacker reported 0 open-market buys ($0) and 55 sells ($222.9M) across 55 Form 4 filings at 1 company — a net selling position of $222.9M.

Source: SEC EDGAR Form 4

What stands out

  • All 55 of Severin Hacker's Form 4 filings are for one company, Duolingo, Inc. (DUOL).
  • The most recent Form 4 was accepted on Nov 20, 2025 (10 months ago).
  • In the last 12 months: no open-market purchases and 3 sales ($7.5M).
  • The largest open-market sale in the last 12 months was $3.1M of Duolingo, Inc. (DUOL) on Oct 23, 2025. SEC ↗

Key Statistics (as of Nov 20, 2025)

Total Form 4 filings
55
SEC EDGAR
Companies
1
Buys (0)
$0
Sells (55)
$222.9M

Insider sentiment

Net selling

Net insider flow of $222.9M in net selling, filed between Aug 3, 2021 – Nov 20, 2025.

Companies Severin Hacker files for

#CompanyForm 4 filings
1DUOLDuolingo, Inc.55

Recent Severin Hacker transactions

DateTickerRoleTypeSharesValueFiling
Nov 20, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$1.7MSEC ↗
Nov 6, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$2.6MSEC ↗
Oct 23, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.1MSEC ↗
Oct 7, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.2MSEC ↗
Sep 22, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$2.9MSEC ↗
Sep 9, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$2.7MSEC ↗
Aug 22, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.4MSEC ↗
Aug 8, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.4MSEC ↗
Jul 23, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.6MSEC ↗
Jul 9, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.9MSEC ↗
Jun 24, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$4.7MSEC ↗
Jun 9, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$5.3MSEC ↗
May 20, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$5.2MSEC ↗
May 7, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$5.0MSEC ↗
Apr 23, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.1MSEC ↗
Apr 9, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$2.9MSEC ↗
Mar 21, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.0MSEC ↗
Mar 7, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$2.9MSEC ↗
Feb 21, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$4.3MSEC ↗
Feb 7, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.9MSEC ↗
Jan 23, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.3MSEC ↗
Jan 7, 2025DUOLChief Tech Officer, Co-FounderSale10.0K$3.4MSEC ↗
Dec 20, 2024DUOLChief Tech Officer, Co-FounderSale10.0K$3.4MSEC ↗
Dec 16, 2024DUOLChief Tech Officer, Co-FounderSale43.8K$14.8MSEC ↗
Dec 13, 2024DUOLChief Tech Officer, Co-FounderSale41.5K$14.1MSEC ↗

Showing the 25 most recent filings of 55. Screen every filing.

Severin Hacker insider trading FAQ

Is Severin Hacker buying or selling?

Across 55 SEC Form 4 filings, Severin Hacker reported 0 open-market purchases totaling $0 and 55 sales totaling $222.9M — a net selling position of $222.9M.

Which companies does Severin Hacker file Form 4s for?

Severin Hacker has reported insider transactions at 1 company, most often Duolingo, Inc. (DUOL).

How far back does Severin Hacker's filing history go?

Trabud holds Severin Hacker's SEC Form 4 filings from Aug 3, 2021 – Nov 20, 2025, sourced directly from SEC EDGAR.

Where does Trabud get Severin Hacker's insider trading data?

Directly from SEC EDGAR Form 4 filings. Every transaction on this page is a real filing accepted by the SEC, updated as new filings arrive.

Related Content

Learn

What is SEC Form 4?

The filing behind every transaction here

Guide

How to Track Insider Trading

A practical workflow for following Form 4 activity

Use Case

Insider Buying Signals

How investors read insider purchases

Track Severin Hacker and every other insider

Screen all SEC Form 4 filings by insider, company, transaction value, and role — or ask Trabud's AI agent in plain English.

Open the screener