Who owns ISABELLA BANK CORP?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ISBA from SEC Form 13F filings across 60 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 60 institutions disclosed 1.6M shares of ISABELLA BANK CORP worth $62.1M — about 21.6% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
60
13F holders
$62.1M
value, 2026 filers
21.6%
of shares outstanding (1.6M sh)
28
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ISBA's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 467,431 | $18.5M | 0.0% | 6.4% | +366.5% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 299,599 | $11.8M | 0.0% | 4.1% | +9.3% |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | 176,251 | $7.0M | 0.0% | 2.4% | +119.2% |
| 4 | STATE STREET CORP | 86,581 | $3.4M | 0.0% | 1.2% | +292.6% |
| 5 | NORTHERN TRUST CORP | 53,471 | $2.1M | 0.0% | 0.7% | +262.8% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLCNEW | 46,742 | $1.8M | 0.0% | 0.6% | new |
| 7 | VANGUARD FIDUCIARY TRUST CO | 46,482 | $1.8M | 0.0% | 0.6% | +14.1% |
| 8 | HARBOUR INVESTMENTS, INC. | 32,988 | $1.3M | 0.0% | 0.4% | +22.1% |
| 9 | VICTORY CAPITAL MANAGEMENT INCNEW | 31,000 | $1.2M | 0.0% | 0.4% | new |
| 10 | GOLDMAN SACHS GROUP INC | 27,462 | $1.1M | 0.0% | 0.4% | +31.9% |
| 11 | TWO SIGMA INVESTMENTS, LPNEW | 23,858 | $942,391 | 0.0% | 0.3% | new |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INCNEW | 20,321 | $802,680 | 0.0% | 0.3% | new |
| 13 | Sixth Street Partners Management Company, L.P.NEW | 20,321 | $802,680 | 0.1% | 0.3% | new |
| 14 | AMERICAN CENTURY COMPANIES INC | 19,931 | $787,274 | 0.0% | 0.3% | +10.5% |
| 15 | MARSHALL WACE, LLP | 19,865 | $784,670 | 0.0% | 0.3% | -63.0% |
| 16 | Bank of New York Mellon CorpNEW | 16,773 | $662,525 | 0.0% | 0.2% | new |
| 17 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 14,240 | $562,480 | 0.0% | 0.2% | 0.0% |
| 18 | CITADEL ADVISORS LLC | 14,147 | $558,807 | 0.0% | 0.2% | +167.5% |
| 19 | Nuveen, LLCNEW | 12,690 | $501,256 | 0.0% | 0.2% | new |
| 20 | Integrated Wealth Concepts LLC | 12,214 | $482,432 | 0.0% | 0.2% | +100.5% |
| 21 | BANK OF AMERICA CORP /DE/ | 10,550 | $416,725 | 0.0% | 0.1% | +13.2% |
| 22 | Walleye Capital LLCNEW | 8,994 | $355,263 | 0.0% | 0.1% | new |
| 23 | DIMENSIONAL FUND ADVISORS LP | 8,840 | $349,883 | 0.0% | 0.1% | 0.0% |
| 24 | Gradient Investments LLCNEW | 8,534 | $337,093 | 0.0% | 0.1% | new |
| 25 | Mattson Financial Services, LLCNEW | 8,534 | $347,504 | 0.1% | 0.1% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.