Upwork Inc.
MX ˙ BMV ˙ US91688F1049
SecurityMX:UPWK / Upwork Inc.
InstitutionPeak6 Llc
Latest Disclosed Ownership342,668 shares
Latest Disclosed Value $ 3,755,641
Peak6 Llc ownership in UPWK / Upwork Inc.

On May 14, 2026 - Peak6 Llc filed a 13F-HR form disclosing ownership of 342,668 shares of Upwork Inc. (MX:UPWK) valued at $3,755,641 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 12, 2026 disclosing 47,698 shares of Upwork Inc.. This represents a change in shares of 618.41% during the quarter.

Peak6 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 0 of underlying shares valued at $0 USD and put options representing 883,600 of underlying shares valued at $9,684,256 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.

MX: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 342,668 294,970 618.41 3,756 297.35 0.0088
2026-03-12 2025-12-31 13F/A-1 UPWORK COM 91688F104 47,698 13,281 38.59 945 47.89 0.0018
2026-02-13 2025-12-31 13F UPWORK COM 91688F104 47,698 13,281 945
2026-03-30 2025-09-30 13F/A-1 UPWORK COM 91688F104 34,417 21,229 160.97 639 261.02 0.0009
2025-11-14 2025-09-30 13F UPWORK COM 91688F104 34,417 21,229 639 0.0009
2026-03-26 2025-06-30 13F/A-2 UPWORKINC COM 91688F104 13,188 11,833 873.28 177 941.18 0.0003
2025-11-13 2025-06-30 13F/A-1 UPWORKINC COM 91688F104 13,188 11,833 177 0.0003
2025-08-14 2025-06-30 13F UPWORKINC COM 91688F104 13,188 11,833 177 0.0003
2025-05-14 2025-03-31 13F UPWORK COM 91688F104 1,355 1,355 18 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 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-03-12 2025-12-31 13F/A UPWORK COM Call 55,100 123.08 1,092 138.43 n/a n/a n/a
2026-02-13 2025-12-31 13F UPWORK COM Call 55,100 1,092 n/a n/a n/a
2026-03-30 2025-09-30 13F/A UPWORK COM Call 24,700 -37.63 459 -13.91 n/a n/a n/a
2025-11-14 2025-09-30 13F UPWORK COM Call 24,700 459 n/a n/a n/a
2025-11-13 2025-06-30 13F/A UPWORKINC COM Call 39,600 532 n/a n/a n/a
2026-03-26 2025-06-30 13F/A UPWORKINC COM Call 39,600 -2.70 532 0.19 n/a n/a n/a
2025-08-14 2025-06-30 13F UPWORKINC COM Call 39,600 532 n/a n/a n/a
2025-05-14 2025-03-31 13F UPWORK COM Call 40,700 -77.75 531 -82.24 n/a n/a n/a
2025-02-13 2024-12-31 13F UPWORK COM Call 182,900 2,990 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 COM Put 883,600 152.46 9,684 39.60 n/a n/a n/a
2026-03-12 2025-12-31 13F/A UPWORK COM Put 350,000 731.35 6,937 788.22 n/a n/a n/a
2026-02-13 2025-12-31 13F UPWORK COM Put 350,000 6,937 n/a n/a n/a
2026-03-30 2025-09-30 13F/A UPWORK COM Put 42,100 782 n/a n/a n/a
2025-11-14 2025-09-30 13F UPWORK COM Put 42,100 782 n/a n/a n/a
2025-11-13 2025-06-30 13F/A UPWORK COM Put 0 0 n/a n/a n/a
2026-03-26 2025-06-30 13F/A UPWORK COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F UPWORK COM Put 0 0 n/a n/a n/a
2025-05-14 2025-03-31 13F UPWORK COM Put 5,300 -58.27 69 -66.67 n/a n/a n/a
2025-02-13 2024-12-31 13F UPWORK COM Put 12,700 208 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.