FactSet Research Systems Inc.
MX ˙ BMV ˙ US3030751057
SecurityMX:FDS / FactSet Research Systems Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership86,227 shares
Latest Disclosed Value $ 18,710,253
Rhumbline Advisers reports 7.26% increase in ownership of FDS / FactSet Research Systems Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 86,227 shares of FactSet Research Systems Inc. (MX:FDS) valued at $18,710,253 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 80,394 shares of FactSet Research Systems Inc.. This represents a change in shares of 7.26% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 86,227 5,833 7.26 18,710 -19.80 0.0160
2026-02-13 2025-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 80,394 -4,873 -5.71 23,329 -4.50 0.0189
2025-11-06 2025-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 85,267 1,519 1.81 24,428 -34.79 0.0196
2025-08-12 2025-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 83,748 438 0.53 37,459 -1.10 0.0321
2025-05-29 2025-03-31 13F/A-1 FACTSET RESH SYS INC COM STK COM 303075105 83,310 4,364 5.53 37,876 -0.11 0.0354
2025-04-08 2025-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 83,310 4,364 37,876 0.0354
2025-05-29 2024-12-31 13F/A-1 FACTSET RESH SYS INC COM STK COM 303075105 78,946 -3,017 -3.68 37,916 0.60 0.0339
2025-01-30 2024-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 78,946 -3,017 37,916 0.0339
2024-11-12 2024-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 81,963 -2,081 -2.48 37,691 9.84 0.0340
2024-08-01 2024-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 84,044 -2,800 -3.22 34,313 -13.05 0.0322
2024-05-09 2024-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 86,844 -3,477 -3.85 39,461 -8.42 0.0379
2024-02-08 2023-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 90,321 635 0.71 43,088 9.87 0.0452
2023-11-09 2023-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 89,686 5,165 6.11 39,216 15.81 0.0455
2023-08-08 2023-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 84,521 1,226 1.47 33,863 99,497.06 0.0379
2023-05-11 2023-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 83,295 4,244 5.37 35 -99.89 0.0427
2023-02-14 2022-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 79,051 5,286 7.17 31,716 7.46 0.0426
2022-11-10 2022-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 73,765 3,405 4.84 29,514 9.08 0.0440
2022-08-11 2022-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 70,360 6,175 9.62 27,058 -2.90 0.0395
2022-05-12 2022-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 64,185 -495 -0.77 27,866 -11.35 0.0359
2022-02-10 2021-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 64,680 -36,346 -35.98 31,435 -21.18 0.0385
2021-11-12 2021-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 101,026 -1,149 -1.12 39,883 16.31 0.0540
2021-08-05 2021-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 102,175 -1,905 -1.83 34,291 6.77 0.0450
2021-05-06 2021-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 104,080 -2,795 -2.62 32,118 -9.62 0.0436
2021-02-10 2020-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 106,875 -3,708 -3.35 35,536 -4.04 0.0490
2020-11-12 2020-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 110,583 -2,895 -2.55 37,032 -0.65 0.0580
2020-08-13 2020-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 113,478 3,098 2.81 37,274 29.54 0.0622
2020-05-06 2020-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 110,380 -938 -0.84 28,774 -3.66 0.0603
2020-02-05 2019-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 111,318 -6,657 -5.64 29,867 4.20 0.0499
2019-10-23 2019-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 117,975 -1,521 -1.27 28,664 -16.29 0.0524
2019-08-14 2019-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 119,496 9,078 8.22 34,243 24.92 0.0643
2019-05-01 2019-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 110,418 696 0.63 27,413 24.84 0.0531
2019-01-31 2018-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 109,722 27,334 33.18 21,959 19.14 0.0478
2018-11-07 2018-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 82,388 -2,867 -3.36 18,431 9.13 0.0356
2018-08-06 2018-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 85,255 -935 -1.08 16,889 -1.74 0.0341
2018-05-02 2018-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 86,190 -13,537 -13.57 17,188 -10.59 0.0359
2018-02-09 2017-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 99,727 1,398 1.42 19,223 8.54 0.0390
2017-11-06 2017-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 98,329 6,369 6.93 17,710 15.89 0.0385
2017-08-02 2017-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 91,960 -2,426 -2.57 15,282 -1.82 0.0349
2017-05-02 2017-03-31 13F FACTSET RESH SYS INC COM STK COM 303075105 94,386 4,803 5.36 15,565 6.31 0.0364
2017-01-27 2016-12-31 13F FACTSET RESH SYS INC COM STK COM 303075105 89,583 4,617 5.43 14,641 6.30 0.0371
2016-11-08 2016-09-30 13F FACTSET RESH SYS INC COM STK COM 303075105 84,966 -1,079 -1.25 13,773 -0.84 0.0380
2016-08-11 2016-06-30 13F FACTSET RESH SYS INC COM STK COM 303075105 86,045 966 1.14 13,889 7.73 0.0412
2016-05-02 2016-03-31 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 85,079 -544 -0.64 12,892 -7.39 0.0400
2016-02-03 2015-12-31 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 85,623 829 0.98 13,920 2.72 0.0448
2015-11-04 2015-09-30 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 84,794 2,120 2.56 13,551 0.86 0.0461
2015-08-04 2015-06-30 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 82,674 4,472 5.72 13,435 7.91 0.0428
2015-05-12 2015-03-31 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 78,202 -219 -0.28 12,450 12.79 0.0359
2015-02-06 2014-12-31 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 78,421 270 0.35 11,038 16.21 0.0321
2014-11-12 2014-09-30 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 78,151 -13,693 -14.91 9,498 -14.02 0.0285
2014-08-06 2014-06-30 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 91,844 -8,747 -8.70 11,047 1.86 0.0324
2014-05-06 2014-03-31 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 100,591 -3,853 -3.69 10,845 -4.37 0.0322
2014-02-03 2013-12-31 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 104,444 -5,346 -4.87 11,341 -5.32 0.0335
2013-11-05 2013-09-30 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 109,790 -5,518 -4.79 11,978 1.91 0.0371
2013-08-07 2013-06-30 13F FACTSET RESEARCH SYSTEMS INC C COM 303075105 115,308 115,308 11,754 0.0378
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.