Upwork Inc.
MX ˙ BMV ˙ US91688F1049
SecurityMX:UPWK / Upwork Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership334,047 shares
Latest Disclosed Value $ 3,661,136
Rhumbline Advisers reports 2.13% increase in ownership of UPWK / Upwork Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 334,047 shares of Upwork Inc. (MX:UPWK) valued at $3,661,136 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 327,073 shares of Upwork Inc.. This represents a change in shares of 2.13% 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)
2026-05-12 2026-03-31 13F UPWORK COM 91688F104 334,047 6,974 2.13 3,661 -43.52 0.0031
2026-02-13 2025-12-31 13F UPWORK COM 91688F104 327,073 140,457 75.27 6,483 87.07 0.0052
2025-11-06 2025-09-30 13F UPWORK COM 91688F104 186,616 -6,583 -3.41 3,465 33.47 0.0028
2025-08-12 2025-06-30 13F UPWORK COM 91688F104 193,199 10,539 5.77 2,597 8.94 0.0022
2025-05-29 2025-03-31 13F/A-1 UPWORK COM 91688F104 182,660 4,458 2.50 2,384 -18.19 0.0022
2025-04-08 2025-03-31 13F UPWORK COM 91688F104 182,660 4,458 2,384 0.0022
2025-05-29 2024-12-31 13F/A-1 UPWORK COM 91688F104 178,202 2,387 1.36 2,914 58.57 0.0026
2025-01-30 2024-12-31 13F UPWORK COM 91688F104 178,202 2,387 2,914 0.0026
2024-11-12 2024-09-30 13F UPWORK COM 91688F104 175,815 -10,853 -5.81 1,837 -8.42 0.0017
2024-08-01 2024-06-30 13F UPWORK COM 91688F104 186,668 6,132 3.40 2,007 -9.35 0.0019
2024-05-09 2024-03-31 13F UPWORK COM 91688F104 180,536 1,526 0.85 2,213 -16.84 0.0021
2024-02-08 2023-12-31 13F UPWORK COM 91688F104 179,010 1,043 0.59 2,662 31.67 0.0028
2023-11-09 2023-09-30 13F UPWORK COM 91688F104 177,967 689 0.39 2,022 22.11 0.0023
2023-08-08 2023-06-30 13F UPWORK COM 91688F104 177,278 6,832 4.01 1,656 165,400.00 0.0019
2023-05-11 2023-03-31 13F UPWORK COM 91688F104 170,446 2,093 1.24 2 -99.94 0.0024
2023-02-14 2022-12-31 13F UPWORK COM 91688F104 168,353 11,304 7.20 1,758 -17.81 0.0024
2022-11-10 2022-09-30 13F UPWORK COM 91688F104 157,049 9,601 6.51 2,139 -29.85 0.0032
2022-08-11 2022-06-30 13F UPWORK COM 91688F104 147,448 22,005 17.54 3,049 4.60 0.0044
2022-05-12 2022-03-31 13F UPWORK COM 91688F104 125,443 5,255 4.37 2,915 -29.01 0.0038
2022-02-10 2021-12-31 13F UPWORK COM 91688F104 120,188 -1,252 -1.03 4,106 -24.91 0.0050
2021-11-12 2021-09-30 13F UPWORK COM 91688F104 121,440 1,495 1.25 5,468 -21.80 0.0074
2021-08-05 2021-06-30 13F UPWORK COM 91688F104 119,945 20,722 20.88 6,992 57.41 0.0092
2021-05-06 2021-03-31 13F UPWORK COM 91688F104 99,223 -13,345 -11.86 4,442 14.31 0.0060
2021-02-10 2020-12-31 13F UPWORK COM 91688F104 112,568 2,147 1.94 3,886 101.77 0.0054
2020-11-12 2020-09-30 13F UPWORK COM 91688F104 110,421 -17,745 -13.85 1,926 4.05 0.0030
2020-08-13 2020-06-30 13F UPWORK COM 91688F104 128,166 59,061 85.47 1,851 315.02 0.0031
2020-05-06 2020-03-31 13F UPWORK COM 91688F104 69,105 241 0.35 446 -39.32 0.0009
2020-02-05 2019-12-31 13F UPWORK COM 91688F104 68,864 2,577 3.89 735 -16.67 0.0012
2019-10-23 2019-09-30 13F UPWORK COM 91688F104 66,287 440 0.67 882 -16.71 0.0016
2019-08-14 2019-06-30 13F UPWORK COM 91688F104 65,847 49,052 292.06 1,059 229.91 0.0020
2019-05-01 2019-03-31 13F UPWORK COM 91688F104 16,795 371 2.26 321 8.08 0.0006
2019-01-31 2018-12-31 13F UPWORK COM 91688F104 16,424 16,424 297 0.0006
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.