First Interstate BancSystem, Inc.
US ˙ NasdaqGS ˙ US32055Y2019

SecurityFIBK / First Interstate BancSystem, Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Parallel Advisors, LLC closes position in FIBK / First Interstate BancSystem, Inc.

On June 2, 2026 - Parallel Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of First Interstate BancSystem, Inc. (US:FIBK) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 255 shares of First Interstate BancSystem, Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-06-02 2026-03-31 13F/A-1 FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 0 -255 -100.00 0 -100.00
2026-02-11 2025-12-31 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 255 0 0.00 9 0.00 0.0002
2025-11-13 2025-09-30 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 255 0 0.00 8 14.29 0.0001
2025-07-08 2025-06-30 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 255 -22 -7.94 7 0.00 0.0001
2025-04-08 2025-03-31 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 277 -72 -20.63 8 -36.36 0.0002
2025-02-10 2024-12-31 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 349 0 0.00 11 10.00 0.0003
2024-11-13 2024-09-30 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 349 38 12.22 11 25.00 0.0003
2024-08-08 2024-06-30 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 311 -953 -75.40 9 -76.47 0.0002
2024-05-06 2024-03-31 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 1,264 -9 -0.71 34 -12.82 0.0009
2024-02-12 2023-12-31 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 1,273 856 205.28 39 290.00 0.0012
2024-05-20 2023-09-30 13F/A-1 FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 417 101 31.96 10 42.86 0.0003
2023-11-14 2023-09-30 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 417 101 10 0.0003
2024-05-20 2023-06-30 13F/A-1 FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 316 -76 -19.39 8 -36.36 0.0002
2023-08-04 2023-06-30 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 316 -76 8 0.0002
2024-05-20 2023-03-31 13F/A-1 FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 392 392 12 0.0004
2023-04-25 2023-03-31 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 392 392 12 0.0004
2022-08-01 2022-06-30 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 0 -147 -100.00 0 -100.00
2022-04-28 2022-03-31 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 147 23 18.55 5 0.00 0.0002
2022-01-20 2021-12-31 13F FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 124 84 210.00 5 150.00 0.0002
2021-11-02 2021-09-30 13F/A-1 FIRST INTERSTATE BANCSYSTEM COMMON Stock 32055Y201 40 40 2 0.0001
2017-08-07 2017-06-30 13F FIRST INTST BANCSYSTEM INC COM CL A Stock 32055Y201 0 -153 -100.00 0 -100.00
2017-05-12 2017-03-31 13F/A-1 FIRST INTST BANCSYSTEM INC COM CL A Stock 32055Y201 153 153 6 0.0012
2017-05-12 2017-03-31 13F FIRST INTST BANCSYSTEM INC COM CL A Stock 32055Y201 153 6
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.