Exponent, Inc.
US ˙ NasdaqGS ˙ US30214U1025

SecurityEXPO / Exponent, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership13,218 shares
Latest Disclosed Value $ 862,475
Citigroup Inc reports 25.71% increase in ownership of EXPO / Exponent, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 13,218 shares of Exponent, Inc. (US:EXPO) valued at $862,474 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 10,515 shares of Exponent, Inc.. This represents a change in shares of 25.71% during the quarter. The current value of the position is $770,742 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)
2026-05-11 2026-03-31 13F EXPONENT COM 30214U102 13,218 2,703 25.71 862 18.08 0.0004
2026-02-13 2025-12-31 13F EXPONENT COM 30214U102 10,515 1,418 15.59 730 15.51 0.0003
2025-11-10 2025-09-30 13F EXPONENT COM 30214U102 9,097 -17,781 -66.15 632 -68.53 0.0003
2025-08-11 2025-06-30 13F EXPONENT COM 30214U102 26,878 -23,373 -46.51 2,008 -50.70 0.0010
2025-05-12 2025-03-31 13F EXPONENT COM 30214U102 50,251 -4,172 -7.67 4,073 -16.00 0.0021
2025-02-12 2024-12-31 13F EXPONENT COM 30214U102 54,423 6,114 12.66 4,849 -12.93 0.0029
2024-11-12 2024-09-30 13F EXPONENT COM 30214U102 48,309 30,723 174.70 5,569 233.07 0.0032
2024-08-12 2024-06-30 13F EXPONENT COM 30214U102 17,586 3,592 25.67 1,673 44.51 0.0011
2024-05-10 2024-03-31 13F EXPONENT COM 30214U102 13,994 227 1.65 1,157 -4.54 0.0008
2024-02-09 2023-12-31 13F EXPONENT COM 30214U102 13,767 6,483 89.00 1,212 94.54 0.0009
2023-12-06 2023-09-30 13F/A-1 EXPONENT COM 30214U102 7,284 -16,598 -69.50 624 -72.04 0.0005
2023-11-09 2023-09-30 13F EXPONENT COM 30214U102 7,284 -16,598 624 0.0002
2023-08-10 2023-06-30 13F EXPONENT COM 30214U102 23,882 9,607 67.30 2,229 56.57 0.0015
2023-05-11 2023-03-31 13F EXPONENT COM 30214U102 14,275 -21,258 -59.83 1,423 -59.57 0.0010
2023-02-09 2022-12-31 13F EXPONENT COM 30214U102 35,533 4,759 15.46 3,521 30.52 0.0028
2022-11-10 2022-09-30 13F EXPONENT COM 30214U102 30,774 403 1.33 2,697 -2.88 0.0019
2022-08-10 2022-06-30 13F EXPONENT COM 30214U102 30,371 -23,227 -43.34 2,777 -52.05 0.0021
2022-05-12 2022-03-31 13F EXPONENT COM 30214U102 53,598 3,604 7.21 5,791 -0.75 0.0035
2022-02-10 2021-12-31 13F EXPONENT COM 30214U102 49,994 11,884 31.18 5,835 35.32 0.0031
2021-11-10 2021-09-30 13F EXPONENT COM 30214U102 38,110 -28,040 -42.39 4,312 -26.93 0.0025
2021-08-10 2021-06-30 13F EXPONENT COM 30214U102 66,150 27,551 71.38 5,901 56.94 0.0036
2021-05-13 2021-03-31 13F EXPONENT COM 30214U102 38,599 -1,454 -3.63 3,760 4.27 0.0024
2021-02-11 2020-12-31 13F EXPONENT COM 30214U102 40,053 14,698 57.97 3,606 97.48 0.0021
2020-11-12 2020-09-30 13F EXPONENT COM 30214U102 25,355 -23,117 -47.69 1,826 -53.45 0.0012
2020-08-12 2020-06-30 13F EXPONENT COM 30214U102 48,472 18,793 63.32 3,923 83.83 0.0031
2020-05-12 2020-03-31 13F EXPONENT COM 30214U102 29,679 -10,667 -26.44 2,134 -23.38 0.0019
2020-02-12 2019-12-31 13F EXPONENT COM 30214U102 40,346 2,806 7.47 2,785 6.14 0.0020
2019-11-08 2019-09-30 13F EXPONENT COM 30214U102 37,540 13,452 55.85 2,624 86.10 0.0021
2019-08-12 2019-06-30 13F EXPONENT COM 30214U102 24,088 -23,164 -49.02 1,410 -48.29 0.0011
2019-05-13 2019-03-31 13F EXPONENT COM 30214U102 47,252 22,120 88.02 2,727 113.88 0.0026
2019-02-12 2018-12-31 13F EXPONENT COM 30214U102 25,132 17,326 221.96 1,275 204.30 0.0013
2018-11-13 2018-09-30 13F EXPONENT COM 30214U102 7,806 1,692 27.67 419 41.55 0.0004
2018-08-10 2018-06-30 13F EXPONENT COM 30214U102 6,114 -1,333 -17.90 296 -49.40 0.0003
2018-05-11 2018-03-31 13F EXPONENT COM 30214U102 7,447 4,981 201.99 585 234.29 0.0005
2018-02-12 2017-12-31 13F EXPONENT COM 30214U102 2,466 -12,544 -83.57 175 -84.22 0.0001
2017-11-13 2017-09-30 13F EXPONENT COM 30214U102 15,010 -3,820 -20.29 1,109 1.00 0.0009
2017-08-11 2017-06-30 13F EXPONENT COM 30214U102 18,830 -4,146 -18.04 1,098 -19.74 0.0010
2017-05-12 2017-03-31 13F EXPONENT COM 30214U102 22,976 -21,958 -48.87 1,368 -49.52 0.0012
2017-02-10 2016-12-31 13F EXPONENT COM 30214U102 44,934 25,509 131.32 2,710 173.19 0.0024
2016-11-10 2016-09-30 13F EXPONENT COM 30214U102 19,425 6,731 53.03 992 33.69 0.0009
2016-08-12 2016-06-30 13F EXPONENT COM 30214U102 12,694 -7,836 -38.17 742 -29.13 0.0008
2016-05-13 2016-03-31 13F EXPONENT COM 30214U102 20,530 11,421 125.38 1,047 130.11 0.0012
2016-02-12 2015-12-31 13F EXPONENT COM 30214U102 9,109 927 11.33 455 25.00 0.0005
2015-11-13 2015-09-30 13F EXPONENT COM 30214U102 8,182 7,844 2,320.71 364 2,326.67 0.0003
2015-08-13 2015-06-30 13F EXPONENT COM 30214U102 338 -2,079 -86.02 15 -93.02 0.0000
2015-05-14 2015-03-31 13F EXPONENT COM 30214U102 2,417 -4,552 -65.32 215 -62.61 0.0002
2015-02-17 2014-12-31 13F EXPONENT COM 30214U102 6,969 4,858 230.13 575 283.33 0.0005
2014-11-14 2014-09-30 13F EXPONENT COM 30214U102 2,111 645 44.00 150 37.61 0.0001
2014-08-14 2014-06-30 13F EXPONENT COM 30214U102 1,466 -1,774 -54.75 109 -55.33 0.0001
2014-05-15 2014-03-31 13F EXPONENT COM 30214U102 3,240 -1,914 -37.14 244 -38.85 0.0002
2014-02-14 2013-12-31 13F EXPONENT COM 30214U102 5,154 3,997 345.46 399 380.72 0.0004
2013-11-14 2013-09-30 13F EXPONENT COM 30214U102 1,157 130 12.66 83 36.07 0.0001
2013-08-14 2013-06-30 13F EXPONENT COM 30214U102 1,027 1,027 61 0.0001
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.