# ISABELLA BK CORP COM

ISABELLA BK CORP COM is a security (CUSIP 464214105) tracked across SEC portfolio filings. 52 institutional managers reported $48.3M on Form 13F as of 2026-06-30; 4 registered fund positions totaling $3.9M via N-PORT as of 2026-04-30.

## Summary

- Issuer: ISABELLA BK CORP
- Class: COM
- CUSIP: 464214105
- Asset category: EC
- 13F holders: 52
- 13F value: $48.3M
- 13F period: 2026-06-30
- N-PORT fund positions: 4
- N-PORT value: $3.9M
- N-PORT report: 2026-04-30

## Top institutional holders (Form 13F)

_Showing 15 of 52 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $15.3M | 306,685 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $4.9M | 107,356 |
| BlackRock, Inc. | New York, NY | $4.6M | 100,201 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $4.3M | 94,742 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $3.7M | 80,402 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $2.5M | 53,678 |
| [HARBOUR INVESTMENTS, INC.](https://search.stillhousedata.com/firm/19258) | MADISON, WI | $1.2M | 27,021 |
| STATE STREET CORP | BOSTON, MA | $1.0M | 22,052 |
| [Qube Research & Technologies Ltd](https://search.stillhousedata.com/firm/304552) | LONDON, X0 | $983K | 21,534 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $951K | 20,825 |
| AMERICAN CENTURY COMPANIES INC | KANSAS CITY, MO | $824K | 18,043 |
| NORTHERN TRUST CORP | CHICAGO, IL | $673K | 14,740 |
| Bank of New York Mellon Corp | NEW YORK, NY | $663K | 16,773 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/111441) | HOUSTON, TX | $650K | 14,240 |
| UBS Group AG | Zurich, V8 | $611K | 13,389 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $3.5M | 0.43% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $245K | 0.08% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $141K | 0.02% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $12K | 0.02% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/464214105.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.