Willis Towers Watson Public Limited Company
US ˙ NasdaqGS ˙ IE00BDB6Q211

SecurityWTW / Willis Towers Watson Public Limited Company
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership9,841 shares
Latest Disclosed Value $ 2,860,640
Mercer Global Advisors Inc /adv reports 11.26% increase in ownership of WTW / Willis Towers Watson Public Limited Company

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 9,841 shares of Willis Towers Watson Public Limited Company (US:WTW) valued at $2,860,779 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 8,845 shares of Willis Towers Watson Public Limited Company. This represents a change in shares of 11.26% during the quarter. The current value of the position is $2,593,497 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)
2026-05-15 2026-03-31 13F WILLIS TOWERS WATSON PLC SHS G96629103 9,841 996 11.26 2,861 -1.58 0.0042
2026-02-17 2025-12-31 13F WILLIS TOWERS WATSON PLC SHS G96629103 8,845 537 6.46 2,906 1.25 0.0044
2025-11-14 2025-09-30 13F WILLIS TOWERS WATSON PLC SHS G96629103 8,308 545 7.02 2,870 20.64 0.0048
2025-08-14 2025-06-30 13F WILLIS TOWERS WATSON PLC SHS G96629103 7,763 -665 -7.89 2,380 -16.47 0.0048
2025-05-15 2025-03-31 13F WILLIS TOWERS WATSON PLC SHS G96629103 8,428 432 5.40 2,848 13.74 0.0065
2025-02-14 2024-12-31 13F WILLIS TOWERS WATSON PLC SHS G96629103 7,996 -7,923 -49.77 2,505 -47.64 0.0061
2024-11-14 2024-09-30 13F WILLIS TOWERS WATSON PLC SHS G96629103 15,919 894 5.95 4,782 19.01 0.0112
2024-08-12 2024-06-30 13F WILLIS TOWERS WATSON PLC SHS G96629103 15,025 256 1.73 4,019 100,350.00 0.0110
2024-05-15 2024-03-31 13F WILLIS TOWERS WATSON PLC SHS G96629103 14,769 -4,967 -25.17 4 0.00 0.0115
2024-02-15 2023-12-31 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 19,736 898 4.77 5 33.33 0.0143
2023-11-15 2023-09-30 13F/A-1 WILLIS TOWERS WATSON PLC SHS G96629103 18,838 6,088 47.75 4 0.00 0.0149
2023-11-14 2023-09-30 13F WILLIS TOWERS WATSON PLC SHS G96629103 18,838 6,088 4 0.0149
2023-08-14 2023-06-30 13F WILLIS TOWERS WATSON PLC SHS G96629103 12,750 117 0.93 3 50.00 0.0119
2023-05-16 2023-03-31 13F WILLIS TOWERS WATSON PLC SHS G96629103 12,633 657 5.49 3 0.00 0.0133
2023-02-09 2022-12-31 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 11,976 10,078 530.98 3 -99.48 0.0147
2022-11-15 2022-09-30 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 1,898 -1 -0.05 381 1.60 0.0023
2022-08-10 2022-06-30 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 1,899 121 6.81 375 -10.71 0.0023
2022-05-10 2022-03-31 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 1,778 -725 -28.97 420 -29.29 0.0025
2022-02-04 2021-12-31 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 2,503 810 47.84 594 50.76 0.0037
2021-11-10 2021-09-30 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 1,693 690 68.79 394 70.56 0.0028
2021-08-10 2021-06-30 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 1,003 -4,620 -82.16 231 -82.05 0.0018
2021-08-10 2021-03-31 13F/A-1 WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 5,623 1,021 22.19 1,287 32.68 0.0117
2021-05-11 2021-03-31 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 5,623 1,021 1,287 0.0123
2021-02-12 2020-12-31 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 4,602 308 7.17 970 8.14 0.0121
2020-12-10 2020-09-30 13F WILLIS TOWERS WATSON PLC LTD SHS SHS G96629103 4,294 -243 -5.36 897 0.34 0.0135
2020-08-10 2020-06-30 13F WILLIS TOWERS WATSON PLC SHS G96629103 4,537 4,537 894 0.0162
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.