# Qualys Inc (QLYS) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 74758T303
Page URL: https://superinvestorclub.com/stock/QLYS
Last updated: 2026-08-29T13:46:11.849Z

## Summary

As of the most recent 13F filing period, Qualys Inc (QLYS) is held by 1 tracked superinvestors with an aggregate position value of $5.4M representing 039120 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Third Avenue Management](https://superinvestorclub.com/manager/3248) | Third Avenue Management | 39120 | $5.4M | 0.86% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-09-30: 1 holders, $309,829 aggregate, 02031 shares
- 2023-12-31: 1 holders, $421,806 aggregate, 02149 shares
- 2024-03-31: 3 holders, $114.5M aggregate, 05652461174523745 shares
- 2024-06-30: 2 holders, $84.9M aggregate, 054800947427 shares
- 2024-09-30: 2 holders, $75.4M aggregate, 054800938834 shares
- 2024-12-31: 3 holders, $81.0M aggregate, 05480091848511279 shares
- 2025-03-31: 3 holders, $94.0M aggregate, 07186021674211261 shares
- 2025-06-30: 4 holders, $104.8M aggregate, 07186021117225061452 shares
- 2025-09-30: 3 holders, $118.7M aggregate, 08708591492011477 shares
- 2025-12-31: 3 holders, $91.1M aggregate, 06478062360614072 shares
- 2026-03-31: 4 holders, $25.8M aggregate, 0226077391201817810219 shares
- 2026-06-30: 1 holders, $5.4M aggregate, 039120 shares

## Recent congressional trades (4)

- 2025-10-31: Lisa McClain (Republican-MI) sale $1,001 - $15,000
- 2025-10-30: Lisa McClain (Republican-MI) sale $1,001 - $15,000
- 2025-10-30: Lisa McClain (Republican-MI) purchase $1,001 - $15,000
- 2025-09-11: Lisa McClain (Republican-MI) purchase $1,001 - $15,000

## Recent insider transactions (0)


## Citation

When citing, use: "Qualys Inc (QLYS) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/QLYS), aggregating SEC 13F, Form 4, and congressional disclosures."