FactSet Research Systems Inc.
US ˙ NYSE ˙ US3030751057

SecurityFDS / FactSet Research Systems Inc.
InstitutionBoston Trust Walden Corp
Latest Disclosed Ownership255,804 shares
Latest Disclosed Value $ 55,506,959
Boston Trust Walden Corp reports 8.73% decrease in ownership of FDS / FactSet Research Systems Inc.

On April 24, 2026 - Boston Trust Walden Corp filed a 13F-HR form disclosing ownership of 255,804 shares of FactSet Research Systems Inc. (US:FDS) valued at $55,506,910 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 280,259 shares of FactSet Research Systems Inc.. This represents a change in shares of -8.73% during the quarter. The current value of the position is $64,830,966 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)
2026-04-24 2026-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 255,804 -24,455 -8.73 55,507 -31.75 0.2729
2026-01-28 2025-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 280,259 -10,064 -3.47 81,328 -2.22 0.6138
2025-10-17 2025-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 290,323 -7,189 -2.42 83,175 -37.50 0.6102
2025-07-28 2025-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 297,512 442 0.15 133,071 -1.47 0.9491
2025-04-21 2025-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 297,070 -4,544 -1.51 135,060 -6.76 0.9868
2025-01-24 2024-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 301,614 5,285 1.78 144,859 6.31 1.0165
2024-10-24 2024-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 296,329 25,294 9.33 136,267 23.14 0.9480
2024-07-19 2024-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 271,035 -2,394 -0.88 110,656 -10.94 0.8208
2024-04-22 2024-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 273,429 -14,301 -4.97 124,243 -9.48 0.8862
2024-01-24 2023-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 287,730 9,016 3.23 137,262 12.63 1.0355
2023-10-18 2023-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 278,714 43,599 18.54 121,870 29.38 1.0213
2023-07-24 2023-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 235,115 22,437 10.55 94,199 6.70 0.7726
2023-04-19 2023-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 212,678 -1,881 -0.88 88,281 2.55 0.7620
2023-01-20 2022-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 214,559 -12,626 -5.56 86,083 -5.30 0.7569
2022-10-19 2022-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 227,185 -30,205 -11.74 90,899 -8.17 0.9005
2022-07-22 2022-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 257,390 17,956 7.50 98,984 -4.78 0.9353
2022-04-20 2022-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 239,434 13,330 5.90 103,950 -5.40 0.8586
2022-01-21 2021-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 226,104 -5,048 -2.18 109,889 20.42 0.8824
2021-10-25 2021-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 231,152 -1,419 -0.61 91,254 16.91 0.8080
2021-07-22 2021-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 232,571 7,687 3.42 78,053 12.47 0.6940
2021-04-21 2021-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 224,884 143,703 177.02 69,397 157.09 0.6720
2021-01-15 2020-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 81,181 -21 -0.03 26,993 -0.74 0.2880
2020-10-14 2020-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 81,202 -1,965 -2.36 27,193 -0.46 0.3387
2020-07-23 2020-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 83,167 -12,483 -13.05 27,318 9.56 0.3689
2020-04-24 2020-03-31 13F/A-1 FACTSET RESH SYS COMMON STOCK 303075105 95,650 -14,446 -13.12 24,934 -15.59 0.3974
2020-04-21 2020-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 102,664 -7,432 26,762 237,306.7659
2020-01-10 2019-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 110,096 13,391 13.85 29,539 25.72 0.3438
2019-10-21 2019-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 96,705 7,996 9.01 23,496 -7.57 0.2954
2019-07-25 2019-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 88,709 402 0.46 25,420 15.95 0.3308
2019-04-16 2019-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 88,307 2,619 3.06 21,924 27.84 0.2985
2019-01-17 2018-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 85,688 7,476 9.56 17,149 -1.99 0.2728
2018-10-23 2018-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 78,212 1,180 1.53 17,497 14.66 0.2410
2018-07-25 2018-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 77,032 4,394 6.05 15,260 5.35 0.2239
2018-04-13 2018-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 72,638 -79 -0.11 14,485 3.34 0.2198
2018-01-29 2017-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 72,717 713 0.99 14,017 8.09 0.2055
2017-10-13 2017-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 72,004 2,504 3.60 12,968 12.29 0.2019
2017-07-19 2017-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 69,500 20,825 42.78 11,549 43.88 0.1856
2017-04-24 2017-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 48,675 63 0.13 8,027 1.03 0.1251
2017-02-07 2016-12-31 13F/A-1 FACTSET RESH SYS COMMON STOCK 303075105 48,612 1,412 2.99 7,945 3.84 0.1253
2017-02-01 2016-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 48,612 7,945
2016-10-17 2016-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 47,200 -1,922 -3.91 7,651 -3.52 0.1261
2016-08-09 2016-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 49,122 130 0.27 7,930 6.83 0.1354
2016-04-19 2016-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 48,992 -4,806 -8.93 7,423 -15.13 0.1292
2016-01-21 2015-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 53,798 106 0.20 8,746 1.92 0.1622
2015-10-29 2015-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 53,692 -729 -1.34 8,581 -2.97 0.1433
2015-07-17 2015-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 54,421 10 0.02 8,844 2.09 0.1349
2015-04-15 2015-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 54,411 54,411 0.00 8,663 0.1286
2015-01-28 2014-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 0 -56,147 -100.00 0 -100.00
2014-10-23 2014-09-30 13F FACTSET RESH SYS COMMON STOCK 303075105 56,147 31 0.06 6,824 1.10 0.1054
2014-08-01 2014-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 56,116 128 0.23 6,750 11.83 0.0981
2014-04-11 2014-03-31 13F FACTSET RESH SYS COMMON STOCK 303075105 55,988 6,437 12.99 6,036 12.19 0.0897
2014-02-11 2013-12-31 13F FACTSET RESH SYS COMMON STOCK 303075105 49,551 -49,144 -49.79 5,380 -50.03 0.0785
2013-11-15 2013-09-30 13F FACTSET RE SHSYS COMMON STOCK 303075105 98,695 1,771 1.83 10,767 8.98 0.1647
2013-08-08 2013-06-30 13F FACTSET RESH SYS COMMON STOCK 303075105 96,924 96,924 9,880 0.1595
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.