# QUALYS INC COM

QUALYS INC COM is a security (CUSIP 74758T303) tracked across SEC portfolio filings. 446 institutional managers reported $3.4B on Form 13F as of 2026-06-30; 40 registered fund positions totaling $206.5M via N-PORT as of 2026-05-31.

## Summary

- Issuer: QUALYS INC
- Class: COM
- CUSIP: 74758T303
- Asset category: EC
- 13F holders: 446
- 13F value: $3.4B
- 13F period: 2026-06-30
- N-PORT fund positions: 40
- N-PORT value: $206.5M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 446 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $580.2M | 4,365,407 |
| BlackRock, Inc. | New York, NY | $470.9M | 5,360,596 |
| Boston Trust Walden Corp | BOSTON, MA | $135.4M | 984,889 |
| STATE STREET CORP | BOSTON, MA | $122.0M | 1,388,720 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $116.1M | 1,320,909 |
| [AQR CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/111883) | Greenwich, CT | $90.8M | 1,038,928 |
| Legal & General Group Plc | London, X0 | $90.4M | 1,029,587 |
| FIRST TRUST ADVISORS LP | Wheaton, IL | $87.5M | 996,064 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $73.2M | 832,796 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $67.0M | 763,099 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $66.9M | 760,842 |
| MORGAN STANLEY | NEW YORK, NY | $56.8M | 646,426 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ | Cincinnati, OH | $50.7M | 368,865 |
| [Adviser Investments LLC](https://search.stillhousedata.com/firm/156984) | NEWTON, MA | $48.2M | 548,760 |
| NORTHERN TRUST CORP | CHICAGO, IL | $44.9M | 510,546 |

## Top fund holders (N-PORT)

_Showing 15 of 40 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| State Street SPDR S&P MidCap 400SM ETF Trust | SPDR S&P MIDCAP 400 ETF TRUST | $95.0M | 39.22% |
| [ETFMG Prime Cyber Security ETF](https://search.stillhousedata.com/fund/S000047480) | ETF Managers Trust | $39.2M | 238.19% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $35.1M | 4.31% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $20.2M | 11.55% |
| [Boston Trust SMID Cap Fund](https://search.stillhousedata.com/fund/S000034664) | Boston Trust Walden Funds | $9.2M | 132.05% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $8.5M | 11.34% |
| BEXIL INVESTMENT TRUST | Bexil Investment Trust | $6.9M | 229.00% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $5.1M | 10.67% |
| [Nicholas Limited Edition, Inc.](https://search.stillhousedata.com/fund/S000009136) | Nicholas Limited Edition, Inc. | $4.1M | 123.67% |
| [Third Avenue Small-Cap Value Fund](https://search.stillhousedata.com/fund/S000001465) | Third Avenue Trust | $3.4M | 169.15% |
| [Columbia Mid Cap Index Fund](https://search.stillhousedata.com/fund/S000010826) | COLUMBIA FUNDS SERIES TRUST | $2.8M | 11.02% |
| [Small Cap Core Portfolio](https://search.stillhousedata.com/fund/S000051867) | Bernstein Fund Inc | $2.1M | 29.62% |
| [VANGUARD STRATEGIC EQUITY FUND](https://search.stillhousedata.com/fund/S000002593) | VANGUARD HORIZON FUNDS | $1.9M | 1.93% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $1.9M | 0.86% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $1.8M | 0.30% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/74758t303.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.