Financial Institutions, Inc.
US ˙ NasdaqGS ˙ US3175854047

SecurityFISI / Financial Institutions, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,005,153 shares
Ownership 5.00%
Dimensional Fund Advisors Lp ownership in FISI / Financial Institutions, Inc.

2025-07-15 - Dimensional Fund Advisors Lp has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,005,153 shares of Financial Institutions, Inc. (US:FISI). This represents 5.0 percent ownership of the company. In their previous filing dated 2025-04-15 , Dimensional Fund Advisors Lp had reported owning 1,060,813 shares, indicating a decrease of -5.25 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2025-07-15 2025-07-15 13G/A 1,060,813 1,005,153 -5.25 5.00 -5.66
2025-04-15 2025-04-15 13G 971,659 1,060,813 9.18 5.30 6.00
2025-01-23 2025-01-23 13G/A 1,027,186 971,659 -5.41 5.00 -25.37
2024-02-09 2024-02-09 13G/A 1,262,125 1,027,186 -18.61 6.70 -18.29
2023-02-10 2023-02-10 13G/A 1,249,099 1,262,125 1.04 8.20 3.80
2022-02-08 2022-02-08 13G/A 1,289,017 1,249,099 -3.10 7.90 -1.25
2021-02-12 2021-02-12 13G/A 1,337,901 1,289,017 -3.65 8.00 -4.31
2020-02-12 2020-02-12 13G/A 1,338,252 1,337,901 -0.03 8.36 -0.48
2019-02-08 2019-02-08 13G/A 1,126,390 1,338,252 18.81 8.40 16.50
2018-02-09 2018-02-09 13G/A 834,925 1,126,390 34.91 7.21 25.39
2017-02-09 2017-02-09 13G 738,689 834,925 13.03 5.75 10.36
2016-02-09 2016-02-09 13G 738,689 5.21
2013-02-11 2013-02-11 13G/A 599,281 4.35
2012-02-14 2012-02-14 13G/A 584,005 4.23

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-07 2026-03-31 13F FINANCIAL INSTITUTIONS COM 317585404 957,667 1,761 0.18 30,367 1.92 0.0063
2026-02-12 2025-12-31 13F FINANCIAL INSTNS COM 317585404 955,906 4,801 0.50 29,796 15.18 0.0063
2025-11-12 2025-09-30 13F FINANCIAL INSTNS COM 317585404 951,105 -54,048 -5.38 25,870 0.22 0.0056
2025-08-12 2025-06-30 13F FINANCIAL INSTNS COM 317585404 1,005,153 -55,660 -5.25 25,813 -2.51 0.0060
2025-05-13 2025-03-31 13F FINANCIAL INSTNS COM 317585404 1,060,813 89,154 9.18 26,478 -0.15 0.0066
2025-02-13 2024-12-31 13F FINANCIAL INSTNS COM 317585404 971,659 14,733 1.54 26,516 8.80 0.0064
2024-11-07 2024-09-30 13F FINANCIAL INSTNS COM 317585404 956,926 -11,249 -1.16 24,373 30.30 0.0059
2024-08-09 2024-06-30 13F FINANCIAL INSTNS COM 317585404 968,175 -55,159 -5.39 18,704 -2.88 0.0049
2024-05-10 2024-03-31 13F FINANCIAL INSTNS COM 317585404 1,023,334 -3,852 -0.38 19,259 -11.97 0.0052
2024-02-07 2023-12-31 13F FINANCIAL INSTNS COM 317585404 1,027,186 -17,562 -1.68 21,879 24.43 0.0064
2023-11-09 2023-09-30 13F FINANCIAL INSTNS COM 317585404 1,044,748 -75,796 -6.76 17,583 -0.31 0.0058
2023-08-09 2023-06-30 13F FINANCIAL INSTNS COM 317585404 1,120,544 -101,825 -8.33 17,638 -25.16 0.0056
2023-05-12 2023-03-31 13F FINANCIAL INSTNS COM 317585404 1,222,369 -39,756 -3.15 23,567 78,456.67 0.0079
2023-02-09 2022-12-31 13F FINANCIAL INSTNS COM 317585404 1,262,125 830 0.07 31 -99.90 0.0091
2022-11-10 2022-09-30 13F FINANCIAL INSTNS COM 317585404 1,261,295 -16,668 -1.30 30,359 -8.70 0.0117
2022-08-12 2022-06-30 13F FINANCIAL INSTNS COM 317585404 1,277,963 19,225 1.53 33,252 -12.32 0.0119
2022-05-13 2022-03-31 13F FINANCIAL INSTNS COM 317585404 1,258,738 9,639 0.77 37,926 -4.52 0.0117
2022-02-09 2021-12-31 13F FINANCIAL INSTNS COM 317585404 1,249,099 -23,824 -1.87 39,721 1.81 0.0120
2021-11-12 2021-09-30 13F FINANCIAL INSTNS COM 317585404 1,272,923 -844 -0.07 39,016 2.10 0.0126
2021-08-12 2021-06-30 13F FINANCIAL INSTNS COM 317585404 1,273,767 -2,570 -0.20 38,213 -1.16 0.0121
2021-05-14 2021-03-31 13F FINANCIAL INSTNS COM 317585404 1,276,337 -12,680 -0.98 38,660 33.30 0.0128
2021-03-08 2020-12-31 13F/A-2 FINANCIAL INSTNS COM 317585404 1,289,017 -22,641 -1.73 29,003 43.59 0.0105
2021-02-11 2020-12-31 13F FINANCIAL INSTNS COM 317585404 1,289,017 -22,641 29,003 10,474.3420
2020-11-12 2020-09-30 13F FINANCIAL INSTNS COM 317585404 1,311,658 -23,864 -1.79 20,199 -18.73 0.0086
2020-08-13 2020-06-30 13F FINANCIAL INSTNS COM 317585404 1,335,522 -9,861 -0.73 24,853 1.83 0.0109
2020-05-14 2020-03-31 13F FINANCIAL INSTNS COM 317585404 1,345,383 7,482 0.56 24,406 -43.17 0.0127
2020-02-14 2019-12-31 13F FINANCIAL INSTNS COM 317585404 1,337,901 -3,257 -0.24 42,947 6.10 0.0157
2019-11-12 2019-09-30 13F FINANCIAL INSTNS COM 317585404 1,341,158 3,032 0.23 40,477 3.77 0.0157
2019-08-13 2019-06-30 13F FINANCIAL INSTNS COM 317585404 1,338,126 2,196 0.16 39,006 7.42 0.0151
2019-08-12 2019-03-31 13F/A-2 FINANCIAL INSTNS COM 317585404 1,335,930 -2,322 -0.17 36,310 5.57 0.0145
2019-05-10 2019-03-31 13F FINANCIAL INSTNS COM 317585404 1,335,930 -2,322 36,310
2019-02-26 2018-12-31 13F/A-1 FINANCIAL INSTNS COM 317585404 1,338,252 31,067 2.38 34,393 -16.21 0.0156
2019-02-13 2018-12-31 13F FINANCIAL INSTNS COM 317585404 1,338,252 31,067 34,393
2018-11-13 2018-09-30 13F FINANCIAL INSTNS COM 317585404 1,307,185 61,163 4.91 41,046 0.13 0.0156
2018-08-10 2018-06-30 13F FINANCIAL INSTNS COM 317585404 1,246,022 56,106 4.72 40,994 16.39 0.0163
2018-05-11 2018-03-31 13F FINANCIAL INSTNS COM 317585404 1,189,916 63,526 5.64 35,222 0.55 0.0147
2018-02-12 2017-12-31 13F FINANCIAL INSTNS COM 317585404 1,126,390 92,136 8.91 35,031 17.61 0.0145
2017-11-13 2017-09-30 13F FINANCIAL INSTNS COM 317585404 1,034,254 66,983 6.92 29,786 3.33 0.0130
2017-08-11 2017-06-30 13F FINANCIAL INSTNS COM 317585404 967,271 77,202 8.67 28,825 -1.72 0.0133
2017-05-12 2017-03-31 13F FINANCIAL INSTNS COM 317585404 890,069 55,144 6.60 29,328 2.71 0.0140
2017-02-09 2016-12-31 13F FINANCIAL INSTNS COM 317585404 834,925 24,731 3.05 28,554 30.00 0.0143
2016-11-10 2016-09-30 13F FINANCIAL INSTNS COM 317585404 810,194 14,854 1.87 21,964 5.93 0.0119
2016-08-09 2016-06-30 13F FINANCIAL INSTNS COM 317585404 795,340 33,267 4.37 20,734 -6.41 0.0119
2016-05-13 2016-03-31 13F FINANCIAL INSTNS COM 317585404 762,073 23,384 3.17 22,154 7.11 0.0133
2016-02-10 2015-12-31 13F FINANCIAL INSTNS COM 317585404 738,689 25,324 3.55 20,684 17.01 0.0129
2015-11-13 2015-09-30 13F FINANCIAL INSTNS COM 317585404 713,365 12,656 1.81 17,677 1.56 0.0116
2015-08-14 2015-06-30 13F FINANCIAL INSTNS COM 317585404 700,709 9,050 1.31 17,406 9.75 0.0107
2015-05-14 2015-03-31 13F FINANCIAL INSTNS COM 317585404 691,659 23,320 3.49 15,860 -5.65 0.0100
2015-02-06 2014-12-31 13F FINANCIAL INSTNS COM 317585404 668,339 16,083 2.47 16,809 14.64 0.0110
2014-11-13 2014-09-30 13F FINANCIAL INSTNS COM 317585404 652,256 21,675 3.44 14,663 -0.71 0.0104
2014-08-08 2014-06-30 13F FINANCIAL INSTNS COM 317585404 630,581 16,717 2.72 14,768 4.51 0.0103
2014-05-14 2014-03-31 13F FINANCIAL INSTNS COM 317585404 613,864 496 0.08 14,131 -6.76 0.0106
2014-02-12 2013-12-31 13F FINANCIAL INSTNS COM 317585404 613,368 1,254 0.20 15,156 21.02 0.0118
2013-11-13 2013-09-30 13F FINANCIAL INSTNS COM 317585404 612,114 3,933 0.65 12,524 11.85 0.0108
2013-08-15 2013-06-30 13F FINANCIAL INSTNS COM 317585404 608,181 608,181 11,197 0.0105
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.