FactSet Research Systems Inc.
US ˙ NYSE ˙ US3030751057

SecurityFDS / FactSet Research Systems Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership76,399 shares
Latest Disclosed Value $ 22,167,904
Sei Investments Co ownership in FDS / FactSet Research Systems Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 76,399 shares of FactSet Research Systems Inc. (US:FDS) valued at $22,170,226 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 119,255 shares of FactSet Research Systems Inc.. This represents a change in shares of -35.94% during the quarter. The current value of the position is $19,362,563 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (FDS) in the form of stock options.

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 .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

FDS / FactSet Research Systems Inc. Historical Put/Call Ratio
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)
2026-02-13 2025-12-31 13F FACTSET RESH SYS COM 303075105 76,399 -42,856 -35.94 22,168 -35.12 0.0219
2025-11-13 2025-09-30 13F FACTSET RESH SYS COM 303075105 119,255 7,921 7.11 34,165 -31.39 0.0367
2025-08-14 2025-06-30 13F FACTSET RESH SYS COM 303075105 111,334 32,457 41.15 49,796 38.87 0.0577
2025-05-14 2025-03-31 13F/A-1 FACTSET RESH SYS COM 303075105 78,877 7,362 10.29 35,856 4.40 0.0461
2025-05-13 2025-03-31 13F FACTSET RESH SYS COM 303075105 73,069 1,554 34,528 0.0376
2025-02-11 2024-12-31 13F FACTSET RESH SYS COM 303075105 71,515 1,752 2.51 34,344 7.05 0.0441
2024-11-12 2024-09-30 13F FACTSET RESH SYS COM 303075105 69,763 -3,342 -4.57 32,083 7.50 0.0417
2024-08-13 2024-06-30 13F FACTSET RESH SYS COM 303075105 73,105 -4,938 -6.33 29,846 -15.83 0.0423
2024-05-07 2024-03-31 13F FACTSET RESH SYS COM 303075105 78,043 18,881 31.91 35,460 25.64 0.0520
2024-02-14 2023-12-31 13F FACTSET RESH SYS COM 303075105 59,162 -4,072 -6.44 28,223 2.08 0.0453
2023-11-14 2023-09-30 13F FACTSET RESH SYS COM 303075105 63,234 7,550 13.56 27,649 23.95 0.0497
2023-08-11 2023-06-30 13F FACTSET RESH SYS COM 303075105 55,684 7,108 14.63 22,306 10.59 0.0389
2023-05-12 2023-03-31 13F FACTSET RESH SYS COM 303075105 48,576 3,540 7.86 20,169 11.65 0.0375
2023-02-10 2022-12-31 13F FACTSET RESH SYS COM 303075105 45,036 -56 -0.12 18,066 0.14 0.0401
2022-11-14 2022-09-30 13F FACTSET RESH SYS COM 303075105 45,092 4,470 11.00 18,040 15.08 0.0402
2022-08-15 2022-06-30 13F FACTSET RESH SYS COM 303075105 40,622 11,101 37.60 15,676 22.26 0.0339
2022-05-13 2022-03-31 13F FACTSET RESH SYS COM 303075105 29,521 4,763 19.24 12,822 8.29 0.0258
2022-02-14 2021-12-31 13F FACTSET RESH SYS COM 303075105 24,758 2,716 12.32 11,840 34.76 0.0222
2021-11-12 2021-09-30 13F FACTSET RESH SYS COM 303075105 22,042 830 3.91 8,786 24.32 0.0184
2021-08-06 2021-06-30 13F FACTSET RESH SYS COM 303075105 21,212 1,987 10.34 7,067 15.80 0.0157
2021-05-12 2021-03-31 13F FACTSET RESH SYS COM 303075105 19,225 263 1.39 6,103 -2.96 0.0154
2021-02-08 2020-12-31 13F FACTSET RESH SYS COM 303075105 18,962 -4,398 -18.83 6,289 -19.48 0.0163
2020-12-04 2020-09-30 13F/A-1 FACTSET RESH SYS COM 303075105 23,360 3,003 14.75 7,810 16.39 0.0226
2020-11-06 2020-09-30 13F FACTSET RESH SYS COM 303075105 23,750 3,393 7,941 19,120.1624
2020-08-17 2020-06-30 13F/A-1 FACTSET RESH SYS COM 303075105 20,357 3,941 24.01 6,710 56.56 0.0208
2020-08-11 2020-06-30 13F FACTSET RESH SYS COM 303075105 19,149 2,733 5,778 15,673.1326
2020-05-14 2020-03-31 13F FACTSET RESH SYS COM 303075105 16,416 -1,269 -7.18 4,286 -9.39 0.0157
2020-02-06 2019-12-31 13F FACTSET RESH SYS COM 303075105 17,685 -739 -4.01 4,730 6.36 0.0141
2019-11-12 2019-09-30 13F FACTSET RESH SYS COM 303075105 18,424 -238 -1.28 4,447 -16.43 0.0114
2019-08-14 2019-06-30 13F FACTSET RESH SYS COM 303075105 18,662 -17,790 -48.80 5,321 -40.94 0.0174
2019-05-15 2019-03-31 13F FACTSET RESH SYS COM 303075105 36,452 18,027 97.84 9,010 130.14 0.0303
2019-02-13 2018-12-31 13F FACTSET RESH SYS COM 303075105 18,425 6,483 54.29 3,915 46.79 0.0139
2018-11-08 2018-09-30 13F FACTSET RESH SYS COM 303075105 11,942 -2,068 -14.76 2,667 -3.93 0.0097
2018-08-03 2018-06-30 13F FACTSET RESH SYS COM 303075105 14,010 4,395 45.71 2,776 44.73 0.0094
2018-05-11 2018-03-31 13F FACTSET RESH SYS COM 303075105 9,615 935 10.77 1,918 14.58 0.0074
2018-02-08 2017-12-31 13F FACTSET RESH SYS COM 303075105 8,680 4,061 87.92 1,674 101.20 0.0058
2017-11-06 2017-09-30 13F FACTSET RESH SYS COM 303075105 4,619 1,135 32.58 832 43.70 0.0030
2017-07-31 2017-06-30 13F FACTSET RESH SYS COM 303075105 3,484 -5,653 -61.87 579 -61.55 0.0023
2017-05-05 2017-03-31 13F FACTSET RESH SYS COM 303075105 9,137 -1,442 -13.63 1,506 -12.90 0.0066
2017-02-02 2016-12-31 13F FACTSET RESH SYS COM 303075105 10,579 6,368 151.22 1,729 153.15 0.0084
2016-11-04 2016-09-30 13F FACTSET RESH SYS COM 303075105 4,211 168 4.16 683 4.59 0.0035
2016-08-11 2016-06-30 13F FACTSET RESH SYS COM 303075105 4,043 237 6.23 653 13.17 0.0039
2016-05-10 2016-03-31 13F/A-1 FACTSET RESH SYS COM 303075105 3,806 -1,674 -30.55 577 -35.24 0.0036
2016-02-03 2015-12-31 13F FACTSET RESH SYS COM 303075105 5,480 1,336 32.24 891 34.39 0.0054
2015-11-02 2015-09-30 13F/A-1 FACTSET RESH SYS COM 303075105 4,144 3,857 1,343.90 663 1,341.30 0.0061
2015-10-30 2015-09-30 13F FACTSET RESH SYS COM 303075105 4,144 663
2015-08-07 2015-06-30 13F/A-1 FACTSET RESH SYS COM 303075105 287 -87 -23.26 46 -17.86 0.0004
2015-08-04 2015-06-30 13F FACTSET RESH SYS COM 303075105 287 -87 46 0.0004
2015-05-14 2015-03-31 13F/A-1 FACTSET RESH SYS COM 303075105 374 63 20.26 56 27.27 0.0005
2015-05-01 2015-03-31 13F FACTORSHARES TR PUT 303075105 374 374 56 0.0005
2015-02-10 2014-12-31 13F FACTSET RESH SYS COM 303075105 311 311 44 0.0004
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2015-05-01 2015-03-31 13F FACTORSHARES TR PUT 374 56 n/a n/a n/a
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.