Fastly, Inc.
US ˙ NasdaqGS ˙ US31188V1008

SecurityFSLY / Fastly, Inc.
InstitutionBarclays Plc
Latest Disclosed Ownership380,870 shares
Latest Disclosed Value $ 3,877,257
Barclays Plc ownership in FSLY / Fastly, Inc.

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 380,870 shares of Fastly, Inc. (US:FSLY) valued at $3,877,257 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 334,332 shares of Fastly, Inc.. This represents a change in shares of 13.92% during the quarter. The current value of the position is $7,933,522 USD.

Barclays Plc 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 0 of underlying shares valued at $0 USD and put options representing 200,000 of underlying shares valued at $2,036,000 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)
2026-02-13 2025-12-31 13F FASTLY COM 31188V100 380,870 46,538 13.92 3,877 35.65 0.0009
2026-03-31 2025-09-30 13F/A-3 FASTLY COM 31188V100 334,332 -108,816 -24.56 2,859 -8.63 0.0006
2026-03-19 2025-09-30 13F/A-2 FASTLY COM 31188V100 438,251 -4,897 3,318 0.0009
2025-11-12 2025-09-30 13F FASTLY COM 31188V100 334,332 -108,816 2,859 0.0006
2026-02-27 2025-06-30 13F/A-2 FASTLY COM 31188V100 443,148 63,493 16.72 3,129 30.17 0.0007
2025-08-14 2025-06-30 13F/A-1 FASTLY COM 31188V100 443,148 63,493 3 0.0007
2025-08-13 2025-06-30 13F FASTLY COM 31188V100 443,148 63,493 3 0.0002
2026-03-17 2025-03-31 13F/A-1 FASTLY COM 31188V100 379,655 -97,522 -20.44 2,403 -46.65 0.0007
2025-05-15 2025-03-31 13F FASTLY COM 31188V100 379,655 -97,522 2 0.0007
2026-03-19 2024-12-31 13F/A-1 FASTLY COM 31188V100 477,177 38,926 8.88 4,505 35.79 0.0013
2025-02-13 2024-12-31 13F FASTLY COM 31188V100 477,177 38,926 5 0.0013
2026-03-31 2024-09-30 13F/A-2 FASTLY COM 31188V100 438,251 247,216 129.41 3,318 135.75 0.0009
2024-11-19 2024-09-30 13F/A-1 FASTLY COM 31188V100 438,251 247,216 3 0.0009
2024-11-15 2024-09-30 13F FASTLY COM 31188V100 438,251 247,216 3 0.0009
2026-03-23 2024-06-30 13F/A-1 FASTLY COM 31188V100 191,035 47,112 32.73 1,408 -24.60 0.0004
2024-08-14 2024-06-30 13F FASTLY COM 31188V100 191,035 47,112 1 0.0004
2026-03-24 2024-03-31 13F/A-1 FASTLY COM 31188V100 143,923 -136,332 -48.65 1,867 -62.59 0.0006
2024-05-15 2024-03-31 13F FASTLY COM 31188V100 143,923 -136,332 2 0.0006
2026-03-25 2023-12-31 13F/A-1 FASTLY COM 31188V100 280,255 206,294 278.92 4,989 252.01 0.0018
2024-02-15 2023-12-31 13F FASTLY COM 31188V100 280,255 206,294 5 0.0018
2026-03-26 2023-09-30 13F/A-1 FASTLY COM 31188V100 73,961 16,561 28.85 1,418 56.57 0.0009
2023-11-07 2023-09-30 13F FASTLY COM 31188V100 73,961 16,561 1 0.0009
2026-03-30 2023-06-30 13F/A-2 FASTLY COM 31188V100 57,400 -52,461 -47.75 905 -53.61 0.0006
2023-09-20 2023-06-30 13F/A-1 FASTLY COM 31188V100 57,400 -52,461 1 0.0006
2023-08-03 2023-06-30 13F FASTLY COM 31188V100 57,400 -52,461 1 0.0006
2026-03-30 2023-03-31 13F/A-1 FASTLY COM 31188V100 109,861 -178,248 -61.87 1,951 -17.30 0.0009
2023-05-04 2023-03-31 13F FASTLY COM 31188V100 109,861 -178,248 2 0.0009
2026-03-30 2022-12-31 13F/A-1 FASTLY COM 31188V100 288,109 -54,512 -15.91 2,360 -24.82 0.0011
2023-02-13 2022-12-31 13F FASTLY COM 31188V100 288,109 -54,512 2 0.0011
2022-11-03 2022-09-30 13F FASTLY COM 31188V100 342,621 96,772 39.36 3,138 9.91 0.0034
2022-08-12 2022-06-30 13F FASTLY COM 31188V100 245,849 -92,381 -27.31 2,855 -51.42 0.0017
2022-05-16 2022-03-31 13F FASTLY COM 31188V100 338,230 -122,984 -26.67 5,877 -64.06 0.0046
2022-02-23 2021-12-31 13F/A-1 FASTLY COM 31188V100 461,214 -284,711 -38.17 16,350 -45.80 0.0061
2022-02-14 2021-12-31 13F FASTLY COM 31188V100 461,214 -284,711 16,350 0.0019
2021-11-09 2021-09-30 13F FASTLY COM 31188V100 745,925 552,438 285.52 30,166 161.63 0.0136
2021-08-13 2021-06-30 13F FASTLY COM 31188V100 193,487 -11,660 -5.68 11,530 -16.46 0.0054
2021-05-13 2021-03-31 13F FASTLY COM 31188V100 205,147 116,161 130.54 13,802 77.54 0.0074
2021-02-11 2020-12-31 13F FASTLY COM 31188V100 88,986 -10,396 -10.46 7,774 -16.49 0.0041
2020-11-12 2020-09-30 13F FASTLY COM 31188V100 99,382 -5,968 -5.66 9,309 3.80 0.0055
2020-08-12 2020-06-30 13F FASTLY COM 31188V100 105,350 103,767 6,555.09 8,968 29,793.33 0.0069
2020-05-13 2020-03-31 13F FASTLY COM 31188V100 1,583 -43,601 -96.50 30 -96.69 0.0000
2020-02-10 2019-12-31 13F FASTLY COM 31188V100 45,184 37,483 486.73 907 390.27 0.0005
2019-11-15 2019-09-30 13F/A-1 FASTLY COM 31188V100 7,701 3,382 78.31 185 112.64 0.0001
2019-11-14 2019-09-30 13F FASTLY COM 31188V100 7,701 3,382 185 42.7722
2019-08-14 2019-06-30 13F FASTLY COM 31188V100 4,319 4,319 87 0.0001
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
(%)
2024-11-19 2024-09-30 13F/A FASTLY OPT Call 0 0 n/a n/a n/a
2026-03-31 2024-09-30 13F/A FASTLY OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-15 2024-09-30 13F FASTLY OPT Call 0 0 n/a n/a n/a
2026-03-23 2024-06-30 13F/A FASTLY OPT Call 125,000 25.00 921 -28.99 n/a n/a n/a
2024-08-14 2024-06-30 13F FASTLY OPT Call 125,000 1 n/a n/a n/a
2026-03-24 2024-03-31 13F/A FASTLY OPT Call 100,000 1,297 n/a n/a n/a
2024-05-15 2024-03-31 13F FASTLY OPT Call 100,000 1 n/a n/a n/a
2026-03-30 2023-03-31 13F/A FASTLY OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-04 2023-03-31 13F FASTLY OPT Call 0 0 n/a n/a n/a
2026-03-30 2022-12-31 13F/A FASTLY OPT Call 35,000 287 n/a n/a n/a
2023-02-13 2022-12-31 13F FASTLY OPT Call 35,000 0 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
(%)
2026-02-13 2025-12-31 13F FASTLY OPT Put 200,000 0.00 2,036 19.06 n/a n/a n/a
2026-03-31 2025-09-30 13F/A FASTLY OPT Put 200,000 0.00 1,710 21.10 n/a n/a n/a
2026-03-19 2025-09-30 13F/A FASTLY OPT Put 175,000 1,325 n/a n/a n/a
2025-11-12 2025-09-30 13F FASTLY OPT Put 200,000 1,710 n/a n/a n/a
2025-08-14 2025-06-30 13F/A FASTLY OPT Put 200,000 1 n/a n/a n/a
2026-02-27 2025-06-30 13F/A FASTLY OPT Put 200,000 0.00 1,412 11.53 n/a n/a n/a
2026-03-17 2025-03-31 13F/A FASTLY OPT Put 200,000 14.29 1,266 -23.37 n/a n/a n/a
2025-05-15 2025-03-31 13F FASTLY OPT Put 200,000 1 n/a n/a n/a
2026-03-19 2024-12-31 13F/A FASTLY OPT Put 175,000 0.00 1,652 24.77 n/a n/a n/a
2025-02-13 2024-12-31 13F FASTLY OPT Put 175,000 2 n/a n/a n/a
2024-11-19 2024-09-30 13F/A FASTLY OPT Put 175,000 1 n/a n/a n/a
2026-03-31 2024-09-30 13F/A FASTLY OPT Put 175,000 1,325 n/a n/a n/a
2024-11-15 2024-09-30 13F FASTLY OPT Put 175,000 1 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.