# SYSTEM1 INC CL A COM

SYSTEM1 INC CL A COM is a security (CUSIP 87200P208) tracked across SEC portfolio filings. 23 institutional managers reported $1.5M on Form 13F as of 2026-06-30; 2 registered fund positions totaling $61K via N-PORT as of 2026-03-31.

## Summary

- Issuer: SYSTEM1 INC
- Class: CL A COM
- CUSIP: 87200P208
- Asset category: EC
- 13F holders: 23
- 13F value: $1.5M
- 13F period: 2026-06-30
- N-PORT fund positions: 2
- N-PORT value: $61K
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

_Showing 15 of 23 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $488K | 161,519 |
| [Cerity Partners LLC](https://search.stillhousedata.com/firm/151559) | NEW YORK, NY | $353K | 116,844 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $184K | 46,933 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $99K | 32,619 |
| BlackRock, Inc. | New York, NY | $73K | 24,247 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $72K | 23,839 |
| [NINE MASTS CAPITAL Ltd](https://search.stillhousedata.com/firm/162024) | CENTRAL, K3 | $56K | 18,548 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $55K | 18,320 |
| STATE STREET CORP | BOSTON, MA | $35K | 11,502 |
| Leonteq Securities AG | ZURICH, V8 | $29K | 12,500 |
| Tower Research Capital LLC (TRC) | NEW YORK, NY | $22K | 7,332 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $18K | 5,890 |
| UBS Group AG | Zurich, V8 | $4K | 1,324 |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $673 | 223 |
| CWM, LLC | OMAHA, NE | $344 | 114 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $61K | 0.01% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $60 | 0.00% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/87200P208.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.