Fastly, Inc.
US ˙ NasdaqGS ˙ US31188V1008

SecurityFSLY / Fastly, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership1,232,739 shares
Latest Disclosed Value $ 35,823,396
UBS Group AG ownership in FSLY / Fastly, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 1,232,739 shares of Fastly, Inc. (US:FSLY) valued at $35,823,395 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 496,162 shares of Fastly, Inc.. This represents a change in shares of 148.45% during the quarter. The current value of the position is $24,543,833 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (FSLY) in the form of stock options. The firm currently holds call options representing 2,375,980 of underlying shares valued at $69,045,979 USD and put options representing 40,000 of underlying shares valued at $1,162,400 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.

FSLY / Fastly, 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)
2026-05-05 2026-03-31 13F FASTLY CL A 31188V100 1,232,739 736,577 148.45 35,823 609.37 0.0054
2026-01-29 2025-12-31 13F FASTLY CL A 31188V100 496,162 -369,326 -42.67 5,051 -31.75 0.0008
2025-11-13 2025-09-30 13F FASTLY CL A 31188V100 865,488 205,401 31.12 7,400 58.78 0.0012
2025-08-14 2025-06-30 13F FASTLY CL A 31188V100 660,087 -182,059 -21.62 4,660 -12.57 0.0008
2025-05-13 2025-03-31 13F FASTLY CL A 31188V100 842,146 393,067 87.53 5,331 25.74 0.0010
2025-02-14 2024-12-31 13F FASTLY CL A 31188V100 449,079 96,045 27.21 4,239 58.65 0.0008
2024-11-14 2024-09-30 13F FASTLY CL A 31188V100 353,034 -83,124 -19.06 2,672 -16.86 0.0006
2024-08-14 2024-06-30 13F FASTLY CL A 31188V100 436,158 -5,283 -1.20 3,214 -43.86 0.0008
2024-05-13 2024-03-31 13F FASTLY CL A 31188V100 441,441 -55,401 -11.15 5,725 -35.26 0.0014
2024-02-09 2023-12-31 13F FASTLY CL A 31188V100 496,842 171,991 52.94 8,844 42.01 0.0026
2023-11-09 2023-09-30 13F FASTLY CL A 31188V100 324,851 46,935 16.89 6,227 42.10 0.0021
2023-08-11 2023-06-30 13F FASTLY CL A 31188V100 277,916 -22,612 -7.52 4,383 -17.89 0.0015
2023-05-12 2023-03-31 13F FASTLY CL A 31188V100 300,528 -212,222 -41.39 5,337 27.10 0.0020
2023-02-08 2022-12-31 13F FASTLY CL A 31188V100 512,750 -5,298 -1.02 4,199 -11.51 0.0016
2022-11-10 2022-09-30 13F FASTLY CL A 31188V100 518,048 -38,163 -6.86 4,745 -26.53 0.0021
2022-08-10 2022-06-30 13F FASTLY CL A 31188V100 556,211 -149,898 -21.23 6,458 -47.38 0.0027
2022-05-16 2022-03-31 13F FASTLY CL A 31188V100 706,109 498,718 240.47 12,273 66.91 0.0041
2022-02-14 2021-12-31 13F FASTLY CL A 31188V100 207,391 -239,017 -53.54 7,353 -59.27 0.0021
2021-11-15 2021-09-30 13F FASTLY CL A 31188V100 446,408 75,162 20.25 18,053 -18.41 0.0057
2021-08-13 2021-06-30 13F FASTLY CL A 31188V100 371,246 168,344 82.97 22,126 62.07 0.0071
2021-05-12 2021-03-31 13F FASTLY CL A 31188V100 202,902 33,149 19.53 13,652 -7.95 0.0045
2021-02-11 2020-12-31 13F FASTLY CL A 31188V100 169,753 79,758 88.62 14,831 75.91 0.0050
2020-11-12 2020-09-30 13F FASTLY CL A 31188V100 89,995 -31,399 -25.87 8,431 -18.41 0.0032
2020-07-31 2020-06-30 13F FASTLY CL A 31188V100 121,394 86,329 246.20 10,334 1,453.98 0.0044
2020-05-01 2020-03-31 13F FASTLY CL A 31188V100 35,065 -44,350 -55.85 665 -58.28 0.0003
2020-02-14 2019-12-31 13F FASTLY CL A 31188V100 79,415 76,085 2,284.83 1,594 1,892.50 0.0006
2019-11-14 2019-09-30 13F FASTLY CL A 31188V100 3,330 -230 -6.46 80 11.11 0.0000
2019-08-14 2019-06-30 13F FASTLY CL A 31188V100 3,560 3,560 72 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
(%)
2026-05-05 2026-03-31 13F FASTLY CL A Call 2,375,980 -16.88 69,046 137.28 n/a n/a n/a
2026-01-29 2025-12-31 13F FASTLY CL A Call 2,858,480 906.15 29,099 1,097.98 n/a n/a n/a
2025-11-13 2025-09-30 13F FASTLY CL A Call 284,100 315.96 2,429 403.94 n/a n/a n/a
2025-08-14 2025-06-30 13F FASTLY CL A Call 68,300 0.00 482 11.57 n/a n/a n/a
2025-05-13 2025-03-31 13F FASTLY CL A Call 68,300 -16.50 432 -44.04 n/a n/a n/a
2025-02-14 2024-12-31 13F FASTLY CL A Call 81,800 0.00 772 24.72 n/a n/a n/a
2024-11-14 2024-09-30 13F FASTLY CL A Call 81,800 133.71 619 140.86 n/a n/a n/a
2024-08-14 2024-06-30 13F FASTLY CL A Call 35,000 -87.23 258 -92.77 n/a n/a n/a
2024-05-13 2024-03-31 13F FASTLY CL A Call 274,100 2,641.00 3,555 1,897.19 n/a n/a n/a
2024-02-09 2023-12-31 13F FASTLY CL A Call 10,000 -95.88 178 -96.17 n/a n/a n/a
2023-11-09 2023-09-30 13F FASTLY CL A Call 242,700 2,327.00 4,653 2,863.06 n/a n/a n/a
2023-08-11 2023-06-30 13F FASTLY CL A Call 10,000 0.00 158 -11.30 n/a n/a n/a
2023-05-12 2023-03-31 13F FASTLY CL A Call 10,000 178 n/a n/a n/a
2022-05-16 2022-03-31 13F FASTLY CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F FASTLY CL A Call 97,000 34.72 3,439 18.10 n/a n/a n/a
2021-11-15 2021-09-30 13F FASTLY CL A Call 72,000 0.00 2,912 -32.14 n/a n/a n/a
2021-08-13 2021-06-30 13F FASTLY CL A Call 72,000 -33.33 4,291 -40.94 n/a n/a n/a
2021-05-12 2021-03-31 13F FASTLY CL A Call 108,000 94.59 7,266 49.85 n/a n/a n/a
2021-02-11 2020-12-31 13F FASTLY CL A Call 55,500 4,849 n/a n/a n/a
2020-11-12 2020-09-30 13F FASTLY CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-07-31 2020-06-30 13F FASTLY CL A Call 10,000 851 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
(%)
2026-05-05 2026-03-31 13F FASTLY CL A Put 40,000 -60.08 1,162 13.92 n/a n/a n/a
2026-01-29 2025-12-31 13F FASTLY CL A Put 100,200 0.00 1,020 19.16 n/a n/a n/a
2025-11-13 2025-09-30 13F FASTLY CL A Put 100,200 -60.94 857 -52.71 n/a n/a n/a
2025-08-14 2025-06-30 13F FASTLY CL A Put 256,500 -5.70 1,811 5.17 n/a n/a n/a
2025-05-13 2025-03-31 13F FASTLY CL A Put 272,000 81.09 1,722 21.45 n/a n/a n/a
2025-02-14 2024-12-31 13F FASTLY CL A Put 150,200 49.90 1,418 86.94 n/a n/a n/a
2024-11-14 2024-09-30 13F FASTLY CL A Put 100,200 0.00 759 2.71 n/a n/a n/a
2024-08-14 2024-06-30 13F FASTLY CL A Put 100,200 738 n/a n/a n/a
2024-05-13 2024-03-31 13F FASTLY CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F FASTLY CL A Put 220,000 266.67 3,916 240.52 n/a n/a n/a
2023-11-09 2023-09-30 13F FASTLY CL A Put 60,000 500.00 1,150 632.48 n/a n/a n/a
2023-08-11 2023-06-30 13F FASTLY CL A Put 10,000 0.00 158 -11.30 n/a n/a n/a
2023-05-12 2023-03-31 13F FASTLY CL A Put 10,000 -97.06 178 -93.64 n/a n/a n/a
2023-02-08 2022-12-31 13F FASTLY CL A Put 340,000 0.00 2,785 -10.60 n/a n/a n/a
2022-11-10 2022-09-30 13F FASTLY CL A Put 340,000 0.00 3,114 -21.10 n/a n/a n/a
2022-08-10 2022-06-30 13F FASTLY CL A Put 340,000 -11.62 3,947 -40.97 n/a n/a n/a
2022-05-16 2022-03-31 13F FASTLY CL A Put 384,700 861.75 6,686 371.51 n/a n/a n/a
2022-02-14 2021-12-31 13F FASTLY CL A Put 40,000 -60.00 1,418 -64.94 n/a n/a n/a
2021-11-15 2021-09-30 13F FASTLY CL A Put 100,000 0.00 4,044 -32.15 n/a n/a n/a
2021-08-13 2021-06-30 13F FASTLY CL A Put 100,000 -18.37 5,960 -27.69 n/a n/a n/a
2021-05-12 2021-03-31 13F FASTLY CL A Put 122,500 -46.06 8,242 -58.46 n/a n/a n/a
2021-02-11 2020-12-31 13F FASTLY CL A Put 227,100 21.38 19,842 13.20 n/a n/a n/a
2020-11-12 2020-09-30 13F FASTLY CL A Put 187,100 17,528 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.