# 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: 2026-07-08T12:27:39.465Z

## Summary

As of the most recent 13F filing period, QUALYS INC (QLYS) is held by 4 tracked superinvestors with an aggregate position value of $25.8M representing 0226077391201817810219 shares.

## Top institutional holders (4)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Terry Smith](https://superinvestorclub.com/manager/23) | Fundsmith | 226077 | $19.9M | 0.15% | 2026-03-31 |
| 2 | [Third Avenue Management](https://superinvestorclub.com/manager/3248) | Third Avenue Management | 39120 | $3.4M | 0.56% | 2026-03-31 |
| 3 | [Torray LLC](https://superinvestorclub.com/manager/3250) | Torray LLC | 18178 | $1.6M | 0.23% | 2026-03-31 |
| 4 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 10219 | $897,739 | 0.00% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2024-03-31: 2 holders, $113.9M aggregate, 0565246117452 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

## Recent congressional trades (3)

- 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

## 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."