Upwork Inc.
US ˙ NasdaqGS ˙ US91688F1049

SecurityUPWK / Upwork Inc.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Simplex Trading, Llc ownership in UPWK / Upwork Inc.

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 0 shares of Upwork Inc. (US:UPWK) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 19,197 shares of Upwork Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (UPWK) in the form of stock options. The firm currently holds call options representing 22,200 of underlying shares valued at $243,312 USD and put options representing 3,400 of underlying shares valued at $37,264 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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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.

UPWK / Upwork 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)
2026-05-14 2026-03-31 13F UPWORK COM 91688F104 0 -19,197 -100.00 0 -100.00
2026-02-11 2025-12-31 13F UPWORK COM 91688F104 19,197 -41,005 -68.11 380 37,900.00 0.0002
2025-11-12 2025-09-30 13F UPWORK COM 91688F104 60,202 -8,397 -12.24 1 0.0006
2025-08-05 2025-06-30 13F UPWORK COM 91688F104 68,599 11,880 20.95 1 0.0005
2025-05-12 2025-03-31 13F UPWORK COM 91688F104 56,719 -46,670 -45.14 1 -100.00 0.0005
2025-02-11 2024-12-31 13F UPWORK COM 91688F104 103,389 49,615 92.27 2 0.0009
2024-11-08 2024-09-30 13F UPWORK COM 91688F104 53,774 29,082 117.78 1 0.0003
2024-07-25 2024-06-30 13F UPWORK COM 91688F104 24,692 13,528 121.18 0 0.0002
2024-04-25 2024-03-31 13F UPWORK COM 91688F104 11,164 -32,014 -74.14 0 0.0001
2024-02-02 2023-12-31 13F UPWORK COM 91688F104 43,178 40,885 1,783.04 1 0.0004
2023-11-01 2023-09-30 13F UPWORK COM 91688F104 2,293 -32,715 -93.45 0 0.0000
2023-08-04 2023-06-30 13F UPWORK COM 91688F104 35,008 30,679 708.69 0 0.0003
2023-04-27 2023-03-31 13F UPWORK COM 91688F104 4,329 -7,529 -63.49 0 0.0000
2023-02-02 2022-12-31 13F UPWORK COM 91688F104 11,858 11,858 0 0.0001
2022-11-04 2022-09-30 13F UPWORK COM 91688F104 0 -2,800 -100.00 0 -100.00
2022-08-03 2022-06-30 13F UPWORK COM 91688F104 2,800 2,800 57 0.0001
2022-05-02 2022-03-31 13F UPWORK COM 91688F104 0 -453 -100.00 0 -100.00
2022-02-23 2021-12-31 13F/A-1 UPWORK COM 91688F104 453 453 15 0.0000
2021-08-12 2021-06-30 13F UPWORK COM 91688F104 0 -24,362 -100.00 0 -100.00
2021-04-26 2021-03-31 13F UPWORK COM 91688F104 24,362 24,362 1,090 0.0020
2021-02-02 2020-12-31 13F UPWORK COM 91688F104 0 -25,637 -100.00 0 -100.00
2020-10-14 2020-09-30 13F UPWORK COM 91688F104 25,637 21,520 522.71 447 657.63 0.0006
2020-07-13 2020-06-30 13F UPWORK COM 91688F104 4,117 4,117 -83.94 59 -86.80 0.0001
2020-04-28 2020-03-31 13F UPWORK COM 91688F104 0 -18,402 -100.00 0 -100.00
2020-02-05 2019-12-31 13F UPWORK COM 91688F104 18,402 18,402 196 0.0004
2019-07-26 2019-06-30 13F UPWORK COM 91688F104 0 -18,453 -100.00 0 -100.00
2019-04-18 2019-03-31 13F UPWORK COM 91688F104 18,453 18,206 7,370.85 353 8,725.00 0.0010
2019-01-16 2018-12-31 13F UPWORK COM 91688F104 247 247 4 0.0000
Disclosed Call 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
(%)
2026-05-14 2026-03-31 13F UPWORK CALL Call 22,200 -62.31 243 -79.18 n/a n/a n/a
2026-02-11 2025-12-31 13F UPWORK CALL Call 58,900 290.07 1,167 n/a n/a n/a
2025-11-12 2025-09-30 13F UPWORK CALL Call 15,100 -88.97 0 -100.00 n/a n/a n/a
2025-08-05 2025-06-30 13F UPWORK CALL Call 136,900 292.26 2 n/a n/a n/a
2025-05-12 2025-03-31 13F UPWORK CALL Call 34,900 -59.18 0 -100.00 n/a n/a n/a
2025-02-11 2024-12-31 13F UPWORK CALL Call 85,500 -42.19 1 0.00 n/a n/a n/a
2024-11-08 2024-09-30 13F UPWORK CALL Call 147,900 -4.40 2 0.00 n/a n/a n/a
2024-07-25 2024-06-30 13F UPWORK CALL Call 154,700 -13.28 2 -50.00 n/a n/a n/a
2024-04-25 2024-03-31 13F UPWORK CALL Call 178,400 98.44 2 100.00 n/a n/a n/a
2024-02-02 2023-12-31 13F UPWORK CALL Call 89,900 219.93 1 n/a n/a n/a
2023-11-01 2023-09-30 13F UPWORK CALL Call 28,100 116.15 0 n/a n/a n/a
2023-08-04 2023-06-30 13F UPWORK CALL Call 13,000 490.91 0 n/a n/a n/a
2023-04-27 2023-03-31 13F UPWORK CALL Call 2,200 -94.79 0 n/a n/a n/a
2023-02-02 2022-12-31 13F UPWORK CALL Call 42,200 -24.64 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F UPWORK CALL Call 56,000 14.29 762 -24.78 n/a n/a n/a
2022-08-03 2022-06-30 13F UPWORK CALL Call 49,000 9.38 1,013 -2.69 n/a n/a n/a
2022-05-02 2022-03-31 13F UPWORK CALL Call 44,800 189.03 1,041 96.79 n/a n/a n/a
2022-02-23 2021-12-31 13F/A UPWORK CALL Call 15,500 -42.38 529 -65.56 n/a n/a n/a
2022-02-04 2021-12-31 13F UPWORK CALL Call 26,900 1,536 n/a n/a n/a
2021-10-28 2021-09-30 13F UPWORK CALL Call 26,900 14.96 1,536 12.69 n/a n/a n/a
2021-08-12 2021-06-30 13F UPWORK CALL Call 23,400 10,834.58 1,363 42.28 n/a n/a n/a
2021-04-26 2021-03-31 13F UPWORK CALL Call 214 -73.97 958 -66.23 n/a n/a n/a
2021-02-02 2020-12-31 13F UPWORK CALL Call 822 -4.53 2,837 89.01 n/a n/a n/a
2020-10-14 2020-09-30 13F UPWORK CALL Call 861 -51.36 1,501 -41.25 n/a n/a n/a
2020-07-13 2020-06-30 13F UPWORK CALL Call 1,770 209.44 2,555 594.29 n/a n/a n/a
2020-04-29 2020-03-31 13F UPWORK CALL Call 572 2,188.00 368 1,315.38 n/a n/a n/a
2020-02-05 2019-12-31 13F UPWORK CALL Call 25 38.89 26 13.04 n/a n/a n/a
2019-10-15 2019-09-30 13F UPWORK CALL Call 18 125.00 23 91.67 n/a n/a n/a
2019-07-26 2019-06-30 13F UPWORK CALL Call 8 -85.71 12 -88.79 n/a n/a n/a
2019-04-18 2019-03-31 13F UPWORK CALL Call 56 229.41 107 256.67 n/a n/a n/a
2019-01-16 2018-12-31 13F UPWORK CALL Call 17 30 n/a n/a n/a
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
(%)
2026-05-14 2026-03-31 13F UPWORK PUT Put 3,400 -92.95 37 -96.13 n/a n/a n/a
2026-02-11 2025-12-31 13F UPWORK PUT Put 48,200 -26.07 955 95,400.00 n/a n/a n/a
2025-11-12 2025-09-30 13F UPWORK PUT Put 65,200 -30.93 1 0.00 n/a n/a n/a
2025-08-05 2025-06-30 13F UPWORK PUT Put 94,400 23.08 1 0.00 n/a n/a n/a
2025-05-12 2025-03-31 13F UPWORK PUT Put 76,700 -40.63 1 -50.00 n/a n/a n/a
2025-02-11 2024-12-31 13F UPWORK PUT Put 129,200 13.04 2 100.00 n/a n/a n/a
2024-11-08 2024-09-30 13F UPWORK PUT Put 114,300 -18.53 1 0.00 n/a n/a n/a
2024-07-25 2024-06-30 13F UPWORK PUT Put 140,300 -1.54 2 0.00 n/a n/a n/a
2024-04-25 2024-03-31 13F UPWORK PUT Put 142,500 657.98 2 n/a n/a n/a
2024-02-02 2023-12-31 13F UPWORK PUT Put 18,800 -60.34 0 n/a n/a n/a
2023-11-01 2023-09-30 13F UPWORK PUT Put 47,400 163.33 1 n/a n/a n/a
2023-08-04 2023-06-30 13F UPWORK PUT Put 18,000 -2.17 0 n/a n/a n/a
2023-04-27 2023-03-31 13F UPWORK PUT Put 18,400 -3.16 0 n/a n/a n/a
2023-02-02 2022-12-31 13F UPWORK PUT Put 19,000 -18.10 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F UPWORK PUT Put 23,200 -46.91 315 -65.12 n/a n/a n/a
2022-08-03 2022-06-30 13F UPWORK PUT Put 43,700 29.67 903 15.33 n/a n/a n/a
2022-05-02 2022-03-31 13F UPWORK PUT Put 33,700 2,307.14 783 1,565.96 n/a n/a n/a
2022-02-23 2021-12-31 13F/A UPWORK PUT Put 1,400 -91.30 47 -94.89 n/a n/a n/a
2022-02-04 2021-12-31 13F UPWORK PUT Put 16,100 919 n/a n/a n/a
2021-10-28 2021-09-30 13F UPWORK PUT Put 16,100 2.55 919 0.44 n/a n/a n/a
2021-08-12 2021-06-30 13F UPWORK PUT Put 15,700 8,295.72 915 9.32 n/a n/a n/a
2021-04-26 2021-03-31 13F UPWORK PUT Put 187 14.02 837 47.88 n/a n/a n/a
2021-02-02 2020-12-31 13F UPWORK PUT Put 164 -65.98 566 -32.62 n/a n/a n/a
2020-10-14 2020-09-30 13F UPWORK PUT Put 482 3.21 840 24.63 n/a n/a n/a
2020-07-13 2020-06-30 13F UPWORK PUT Put 467 245.93 674 674.71 n/a n/a n/a
2020-04-29 2020-03-31 13F UPWORK PUT Put 135 -54.85 87 -72.73 n/a n/a n/a
2020-02-05 2019-12-31 13F UPWORK PUT Put 299 -30.47 319 -44.23 n/a n/a n/a
2019-10-15 2019-09-30 13F UPWORK PUT Put 430 -39.52 572 -49.96 n/a n/a n/a
2019-07-26 2019-06-30 13F UPWORK PUT Put 711 31.91 1,143 10.86 n/a n/a n/a
2019-04-18 2019-03-31 13F UPWORK PUT Put 539 1,397.22 1,031 1,486.15 n/a n/a n/a
2019-01-16 2018-12-31 13F UPWORK PUT Put 36 65 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.