FactSet Research Systems Inc.
MX ˙ BMV ˙ US3030751057
SecurityMX:FDS / FactSet Research Systems Inc.
InstitutionSaybrook Capital /nc
Latest Disclosed Ownership48,299 shares
Latest Disclosed Value $ 10,480,471
Saybrook Capital /nc reports 6.05% decrease in ownership of FDS / FactSet Research Systems Inc.

On May 5, 2026 - Saybrook Capital /nc filed a 13F-HR form disclosing ownership of 48,299 shares of FactSet Research Systems Inc. (MX:FDS) valued at $10,480,471 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 51,407 shares of FactSet Research Systems Inc.. This represents a change in shares of -6.05% during the quarter.

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)
2026-05-05 2026-03-31 13F Factset Research Sys COM 303075105 48,299 -3,108 -6.05 10,480 -29.74 2.8221
2026-01-29 2025-12-31 13F Factset Research Sys COM 303075105 51,407 -3,074 -5.64 14,918 -4.43 3.7137
2025-10-16 2025-09-30 13F Factset Research Sys COM 303075105 54,481 9,011 19.82 15,608 -23.25 4.0781
2025-07-31 2025-06-30 13F Factset Research Sys COM 303075105 45,470 -997 -2.15 20,338 -3.73 5.7499
2025-04-23 2025-03-31 13F Factset Research Sys COM 303075105 46,467 -2,295 -4.71 21,126 -9.80 5.8308
2025-02-07 2024-12-31 13F Factset Research Sys COM 303075105 48,762 457 0.95 23,420 5.43 6.2551
2024-10-25 2024-09-30 13F Factset Research Sys COM 303075105 48,305 3,625 8.11 22,213 123,305.56 6.2742
2024-08-07 2024-06-30 13F Factset Research Sys COM 303075105 44,680 -995 -2.18 18 -10.00 5.1677
2024-05-03 2024-03-31 13F Factset Research Sys COM 303075105 45,675 825 1.84 21 -4.76 5.4796
2024-01-30 2023-12-31 13F Factset Research Sys COM 303075105 44,850 -330 -0.73 21 10.53 5.9363
2023-11-03 2023-09-30 13F Factset Research Sys COM 303075105 45,180 -115 -0.25 20 5.56 5.9531
2023-08-02 2023-06-30 13F Factset Research Sys COM 303075105 45,295 253 0.56 18 0.00 5.3900
2023-04-28 2023-03-31 13F Factset Research Sys COM 303075105 45,042 -75 -0.17 19 0.00 5.9467
2023-02-08 2022-12-31 13F Factset Research Sys COM 303075105 45,117 -300 -0.66 18 -99.90 6.0081
2022-11-04 2022-09-30 13F Factset Research Sys COM 303075105 45,417 -127 -0.28 18,172 3.75 6.3992
2022-08-03 2022-06-30 13F Factset Research Sys COM 303075105 45,544 45 0.10 17,515 -11.33 5.7112
2022-05-05 2022-03-31 13F Factset Research Sys COM 303075105 45,499 -998 -2.15 19,753 -12.59 5.3148
2022-01-28 2021-12-31 13F Factset Research Sys COM 303075105 46,497 -640 -1.36 22,598 21.44 5.6871
2021-11-02 2021-09-30 13F Factset Research Sys COM 303075105 47,137 -112 -0.24 18,609 17.36 5.1495
2021-07-20 2021-06-30 13F Factset Research Sys COM 303075105 47,249 1,630 3.57 15,857 12.64 4.3272
2021-05-10 2021-03-31 13F Factset Research Sys COM 303075105 45,619 -270 -0.59 14,078 -7.73 4.2766
2021-02-12 2020-12-31 13F Factset Research Sys COM 303075105 45,889 -140 -0.30 15,258 -1.01 4.8873
2020-11-10 2020-09-30 13F Factset Research Sys COM 303075105 46,029 15 0.03 15,414 1.98 5.5367
2020-08-05 2020-06-30 13F Factset Research Sys COM 303075105 46,014 -865 -1.85 15,114 23.68 6.0870
2020-05-04 2020-03-31 13F/A-1 Factset Research Sys COM 303075105 46,879 -465 -0.98 12,220 -3.79 5.6328
2020-04-27 2020-03-31 13F Factset Research Sys COM 303075105 41,564 -5,780 6,298 3,984,134.3143
2020-02-05 2019-12-31 13F Factset Research Sys COM 303075105 47,344 -5 -0.01 12,702 10.41 4.9540
2019-11-06 2019-09-30 13F Factset Research Sys COM 303075105 47,349 30 0.06 11,504 -15.16 4.8559
2019-08-09 2019-06-30 13F Factset Research Sys COM 303075105 47,319 -390 -0.82 13,560 14.48 5.7246
2019-05-10 2019-03-31 13F Factset Research Sys COM 303075105 47,709 155 0.33 11,845 24.46 5.1340
2019-02-11 2018-12-31 13F Factset Research Sys COM 303075105 47,554 -825 -1.71 9,517 -12.07 4.5423
2018-11-13 2018-09-30 13F Factset Research Sys COM 303075105 48,379 310 0.64 10,823 13.66 4.6490
2018-08-13 2018-06-30 13F Factset Research Sys COM 303075105 48,069 -100 -0.21 9,522 -0.87 4.3635
2018-05-14 2018-03-31 13F Factset Research Sys COM 303075105 48,169 -260 -0.54 9,606 2.90 4.5405
2018-02-14 2017-12-31 13F Factset Research Sys COM 303075105 48,429 3,250 7.19 9,335 14.72 4.3171
2017-11-13 2017-09-30 13F Factset Research Sys COM 303075105 45,179 1,070 2.43 8,137 11.01 3.9988
2017-08-14 2017-06-30 13F Factset Research Sys COM 303075105 44,109 1,250 2.92 7,330 3.71 3.6806
2017-05-12 2017-03-31 13F Factset Research Sys COM 303075105 42,859 3,175 8.00 7,068 8.97 3.8154
2017-02-14 2016-12-31 13F Factset Research Sys COM 303075105 39,684 -1,800 -4.34 6,486 -3.55 4.1082
2016-11-14 2016-09-30 13F Factset Research Sys COM 303075105 41,484 350 0.85 6,725 1.28 4.2922
2016-08-08 2016-06-30 13F Factset Research Sys COM 303075105 41,134 -430 -1.03 6,640 5.43 4.2930
2016-05-09 2016-03-31 13F Factset Research Sys COM 303075105 41,564 495 1.21 6,298 -5.68 3.9841
2016-02-12 2015-12-31 13F Factset Research Sys COM 303075105 41,069 -1,000 -2.38 6,677 -0.68 4.2396
2015-11-13 2015-09-30 13F Factset Research Sys COM 303075105 42,069 -125 -0.30 6,723 -1.95 4.5104
2015-08-12 2015-06-30 13F Factset Research Sys COM 303075105 42,194 -100 -0.24 6,857 1.84 4.3707
2015-05-11 2015-03-31 13F Factset Research Sys COM 303075105 42,294 -6,000 -12.42 6,733 -0.94 4.4321
2015-02-11 2014-12-31 13F Factset Research Sys COM 303075105 48,294 -30 -0.06 6,797 15.73 3.9510
2014-11-12 2014-09-30 13F/A-1 Factset Research Sys COM 303075105 48,324 -150 -0.31 5,873 0.74 3.5543
2014-11-10 2014-09-30 13F Factset Research Sys COM 303075105 46,824 5,048
2014-08-08 2014-06-30 13F Factset Research Sys COM 303075105 48,474 1,650 3.52 5,830 15.49 3.5068
2014-05-12 2014-03-31 13F Factset Research Sys COM 303075105 46,824 4,299 10.11 5,048 9.34 3.1996
2014-02-14 2013-12-31 13F Factset Research Sys COM 303075105 42,525 775 1.86 4,617 1.36 2.9178
2013-11-12 2013-09-30 13F Factset Research Sys COM 303075105 41,750 500 1.21 4,555 8.32 3.3042
2013-08-14 2013-06-30 13F Factset Research Sys COM 303075105 41,250 41,250 4,205 3.0401
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.