# FIRST INTST BANCSYSTEM INC COM

FIRST INTST BANCSYSTEM INC COM is a security (CUSIP 32055Y201) tracked across SEC portfolio filings. 295 institutional managers reported $3.1B on Form 13F as of 2026-06-30; 28 registered fund positions totaling $235.3M via N-PORT as of 2026-05-31.

## Summary

- Issuer: FIRST INTST BANCSYSTEM INC
- Class: COM
- CUSIP: 32055Y201
- Asset category: EC
- 13F holders: 295
- 13F value: $3.1B
- 13F period: 2026-06-30
- N-PORT fund positions: 28
- N-PORT value: $235.3M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 295 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $450.2M | 13,479,487 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $347.7M | 10,048,419 |
| STATE STREET CORP | BOSTON, MA | $196.8M | 5,891,271 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $188.1M | 5,630,789 |
| First Interstate Bank | Billings, MT | $177.9M | 4,614,432 |
| HoldCo Asset Management, LP | FORT LAUDERDALE, FL | $131.9M | 3,950,107 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $129.7M | 3,882,437 |
| FMR LLC | BOSTON, MA | $129.5M | 3,877,196 |
| Capital International Investors | Los Angeles, CA | $76.5M | 2,290,572 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $74.1M | 2,218,319 |
| VICTORY CAPITAL MANAGEMENT INC | San Antonio, TX | $69.7M | 2,086,923 |
| FRANKLIN RESOURCES INC | San Mateo, CA | $62.8M | 1,881,246 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $59.4M | 1,778,094 |
| UBS Group AG | Zurich, V8 | $58.7M | 1,756,292 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | PHILADELPHIA, PA | $56.9M | 1,703,078 |

## Top fund holders (N-PORT)

_Showing 15 of 28 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [SMALLCAP World Fund Inc](https://search.stillhousedata.com/fund/S000009599) | SMALLCAP World Fund Inc | $114.8M | 14.16% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $32.7M | 4.01% |
| [MFS New Discovery Value Fund](https://search.stillhousedata.com/fund/S000032712) | MFS SERIES TRUST XIII | $29.9M | 120.04% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $15.8M | 9.00% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $11.3M | 15.09% |
| [Embark Small Cap Equity Fund](https://search.stillhousedata.com/fund/S000083503) | Harbor Funds II | $7.0M | 123.04% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $4.7M | 9.71% |
| [VANGUARD STRATEGIC EQUITY FUND](https://search.stillhousedata.com/fund/S000002593) | VANGUARD HORIZON FUNDS | $2.8M | 2.82% |
| [VictoryShares US Small Cap High Div Volatility Wtd ETF](https://search.stillhousedata.com/fund/S000049908) | Victory Portfolios II | $2.4M | 93.32% |
| [Franklin Mutual Small-Mid Cap Value Fund](https://search.stillhousedata.com/fund/S000007354) | Franklin Value Investors Trust | $2.1M | 95.06% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $1.6M | 0.27% |
| [BNY Mellon Smallcap Stock Index Fund](https://search.stillhousedata.com/fund/S000000132) | BNY MELLON INDEX FUNDS, INC. | $1.6M | 18.33% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $1.4M | 0.47% |
| [CRM SMALL CAP VALUE FUND](https://search.stillhousedata.com/fund/S000001323) | CRM Mutual Fund Trust | $1.4M | 194.34% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $1.2M | 1.07% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/32055Y201.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.