Who owns FIRST INTERSTATE BANCSYSTEM INC, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
STATE STREET CORPORATION: 6.4% · 6,250,817 shares
Wellington Management Group LLP: 4.0% · 3,882,437 shares — Wellington Group Holdings LLP: 4.0% · 3,882,437 shares — Wellington Investment Advisors Holdings LLP: 4.0% · 3,882,437 shares
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Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of FIRST INTERSTATE BANCSYSTEM INC they hold. Together these 355 managers report 108.46% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. | $530M | 13,732,702 | 0.01% | 14.41% | June 30, 2026 |
| VANGUARD GROUP INC | $348M | 10,048,419 | 0.01% | 10.54% | December 31, 2025 |
353 more institutional holders behind a free account
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 323 funds hold 53.25% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | $196M | 0.18% | 5.34% | June 30, 2026 |
| SMALLCAP World Fund Inc | $132M | 0.14% | 3.59% | June 30, 2026 |
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