Fastly (FSLY)
Fastly on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as services-prepackaged software.
20.6M
Short interest
settlement 2026-10-15
3.7
Days to cover
+1.6 days vs prior
43.3%
Short share of volume
2026-11-02
5,056
Fails to deliver
settlement 2026-10-14
Wed 4 Nov
Next earnings
estimated date
-$35.9M
Insider flow, 90 days
0 buys, 65 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in FSLY is 20,581,799 shares, down 983,355 shares over the last month. Over the last 48 readings it ranged from 8,755,116 shares (30 June 2025) to 25,531,692 shares (15 July 2026). At the reported average volume of 5.6M shares a day that is 3.7 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 20,581,799 | -2.9% | 5,602,190 | 3.67 |
| 2026-09-30 | 21,187,254 | -1.8% | 10,267,439 | 2.06 |
| 2026-09-15 | 21,565,154 | +6.7% | 5,463,696 | 3.95 |
| 2026-08-31 | 20,213,781 | -5.7% | 4,635,739 | 4.36 |
| 2026-08-14 | 21,437,861 | -5.1% | 8,222,414 | 2.61 |
| 2026-07-31 | 22,594,904 | -11.5% | 5,042,068 | 4.48 |
| 2026-07-15 | 25,531,692 | +0.7% | 4,015,896 | 6.36 |
| 2026-06-30 | 25,354,952 | +35.8% | 5,750,150 | 4.41 |
| 2026-06-15 | 18,671,252 | -5.1% | 7,837,198 | 2.38 |
| 2026-05-29 | 19,665,563 | -7.5% | 6,067,221 | 3.24 |
| 2026-05-15 | 21,261,305 | +12.2% | 14,402,135 | 1.48 |
| 2026-04-30 | 18,942,162 | -3.4% | 8,348,283 | 2.27 |
| 2026-04-15 | 19,606,464 | +6.8% | 17,043,768 | 1.15 |
| 2026-03-31 | 18,354,032 | +2.9% | 12,567,119 | 1.46 |
| 2026-03-13 | 17,844,166 | +11.2% | 12,886,409 | 1.38 |
| 2026-02-27 | 16,042,418 | -6.1% | 14,699,737 | 1.09 |
| 2026-02-13 | 17,089,599 | +22.9% | 21,158,985 | 1.00 |
| 2026-01-30 | 13,901,854 | -4.5% | 3,592,684 | 3.87 |
| 2026-01-15 | 14,553,610 | +14.5% | 3,214,062 | 4.53 |
| 2025-12-31 | 12,710,597 | +1.5% | 2,498,902 | 5.09 |
| 2025-12-15 | 12,519,104 | +32.5% | 6,661,692 | 1.88 |
| 2025-11-28 | 9,445,148 | -5.4% | 4,039,379 | 2.34 |
| 2025-11-14 | 9,984,826 | -6.5% | 6,664,385 | 1.50 |
| 2025-10-31 | 10,683,654 | +2.7% | 1,995,022 | 5.36 |
| 2025-10-15 | 10,404,710 | -6.1% | 3,269,597 | 3.18 |
| 2025-09-30 | 11,078,342 | +24.1% | 4,466,665 | 2.48 |
| 2025-09-15 | 8,928,850 | +1.4% | 2,880,869 | 3.10 |
| 2025-08-29 | 8,802,477 | -7.3% | 2,546,046 | 3.46 |
| 2025-08-15 | 9,494,603 | -2.4% | 3,502,723 | 2.71 |
| 2025-07-31 | 9,730,611 | +6.3% | 2,027,922 | 4.80 |
| 2025-07-15 | 9,151,286 | +4.5% | 1,941,645 | 4.71 |
| 2025-06-30 | 8,755,116 | -12.2% | 4,007,446 | 2.18 |
| 2025-06-13 | 9,976,749 | -1.5% | 2,685,841 | 3.71 |
| 2025-05-30 | 10,129,686 | -2.8% | 1,732,799 | 5.85 |
| 2025-05-15 | 10,425,532 | +5.9% | 3,820,790 | 2.73 |
| 2025-04-30 | 9,846,369 | +1.2% | 1,661,751 | 5.93 |
| 2025-04-15 | 9,727,388 | -6.5% | 3,106,981 | 3.13 |
| 2025-03-31 | 10,403,051 | -1.2% | 2,927,306 | 3.55 |
| 2025-03-14 | 10,531,654 | +0.9% | 3,358,413 | 3.14 |
| 2025-02-28 | 10,434,288 | -4.3% | 3,152,048 | 3.31 |
| 2025-02-14 | 10,909,099 | +17.1% | 4,811,964 | 2.27 |
| 2025-01-31 | 9,312,896 | -7.2% | 2,386,993 | 3.90 |
| 2025-01-15 | 10,036,292 | +8.4% | 2,267,101 | 4.43 |
| 2024-12-31 | 9,261,994 | -8.5% | 3,241,056 | 2.86 |
| 2024-12-13 | 10,122,011 | +2.1% | 5,336,820 | 1.90 |
| 2024-11-29 | 9,909,739 | -2.8% | 2,844,155 | 3.48 |
| 2024-11-15 | 10,198,808 | -13.9% | 3,861,175 | 2.64 |
| 2024-10-31 | 11,841,352 | -4.2% | 2,149,439 | 5.51 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of FSLY volume is 43.3%, down 10.8 points over the last five sessions. Over the last 30 readings it ranged from 43.3% (2 November 2026) to 71.2% (1 October 2026). The latest reading sits at the bottom of that range. The latest reading is 14.8 points below the 30-session average of 58.1%, on 2.9M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 1.3M | 2.9M | 43.3% | 91,072 |
| 2026-10-30 | 1.4M | 2.3M | 58.4% | 60,387 |
| 2026-10-29 | 1.0M | 1.7M | 61.8% | 3,805 |
| 2026-10-28 | 915K | 1.5M | 60.3% | 1,312 |
| 2026-10-27 | 1.2M | 2.4M | 51.2% | 1,460 |
| 2026-10-26 | 1.3M | 2.3M | 54.1% | 7,411 |
| 2026-10-23 | 1.1M | 2.2M | 50.2% | 2,460 |
| 2026-10-22 | 931K | 1.8M | 52.1% | 1,004 |
| 2026-10-21 | 1.4M | 2.7M | 53.2% | 1,828 |
| 2026-10-20 | 789K | 1.7M | 47.5% | 442 |
| 2026-10-19 | 882K | 1.7M | 51.4% | 48,539 |
| 2026-10-16 | 2.0M | 2.9M | 70.4% | 87,500 |
| 2026-10-15 | 2.2M | 3.4M | 65.6% | 5,565 |
| 2026-10-14 | 1.6M | 2.7M | 59.8% | 230 |
| 2026-10-13 | 1.8M | 2.7M | 66.0% | 134,894 |
| 2026-10-12 | 1.7M | 3.1M | 55.8% | 85,080 |
| 2026-10-09 | 4.5M | 7.2M | 62.9% | 10,547 |
| 2026-10-08 | 1.1M | 2.0M | 56.5% | 939 |
| 2026-10-07 | 607K | 1.1M | 57.0% | 775 |
| 2026-10-06 | 919K | 1.4M | 65.7% | 6,510 |
| 2026-10-05 | 602K | 964K | 62.4% | 432 |
| 2026-10-02 | 957K | 1.6M | 61.1% | 3,566 |
| 2026-10-01 | 1.1M | 1.5M | 71.2% | 1,331 |
| 2026-09-30 | 1.2M | 2.3M | 51.0% | 1,601 |
| 2026-09-29 | 943K | 1.7M | 55.4% | 236 |
| 2026-09-28 | 992K | 1.9M | 51.7% | 1,247 |
| 2026-09-25 | 2.3M | 4.1M | 55.2% | 227,317 |
| 2026-09-24 | 4.9M | 7.6M | 64.0% | 391,151 |
| 2026-09-23 | 9.6M | 15.0M | 64.3% | 999,941 |
| 2026-09-22 | 4.2M | 6.6M | 63.6% | 137,264 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in FSLY is 5,056 shares, up 126 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (23 July 2026) to 32,850 shares (13 August 2026).
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 5,056 | $27.09 | $137K |
| 2026-10-13 | 4,930 | $26.43 | $130K |
| 2026-10-07 | 1,897 | $25.51 | $48K |
| 2026-10-06 | 1,987 | $26.01 | $52K |
| 2026-10-05 | 200 | $25.81 | $5K |
| 2026-09-24 | 1,330 | $29.65 | $39K |
| 2026-09-23 | 5,400 | $26.08 | $141K |
| 2026-09-22 | 16,790 | $27.42 | $460K |
| 2026-09-21 | 17,274 | $23.86 | $412K |
| 2026-09-15 | 283 | $24.86 | $7K |
| 2026-09-14 | 200 | $23.16 | $5K |
| 2026-09-11 | 181 | $22.71 | $4K |
| 2026-08-26 | 2,644 | $23.00 | $61K |
| 2026-08-25 | 1,418 | $22.94 | $33K |
| 2026-08-24 | 700 | $24.95 | $17K |
| 2026-08-19 | 2,907 | $26.59 | $77K |
| 2026-08-17 | 100 | $29.93 | $3K |
| 2026-08-13 | 32,850 | $28.53 | $937K |
| 2026-08-11 | 22,614 | $27.75 | $628K |
| 2026-08-10 | 16,000 | $22.96 | $367K |
| 2026-08-07 | 4,970 | $22.68 | $113K |
| 2026-08-05 | 12 | $24.95 | $299 |
| 2026-08-04 | 1,543 | $23.03 | $36K |
| 2026-08-03 | 3,843 | $22.66 | $87K |
| 2026-07-29 | 3 | $20.80 | $62 |
| 2026-07-23 | 2 | $20.46 | $41 |
| 2026-07-20 | 571 | $20.72 | $12K |
| 2026-07-16 | 35 | $20.00 | $700 |
| 2026-07-01 | 110 | $18.36 | $2K |
| 2026-06-29 | 691 | $17.11 | $12K |
Insider trades
SEC Form 4, newest first. JSONInsiders at FSLY reported 65 open-market sells worth $35.9M in the last 90 days and no open-market buys. Latest filing: Bergman Artur (Chief Technology Officer) on 2026-10-26.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-26 | Bergman Artur | Chief Technology Officer | Sell | 32K | $25.61 | $823K | 1.0M |
| 2026-10-26 | Bergman Artur | Chief Technology Officer | Sell | 5K | $24.60 | $121K | 1.1M |
| 2026-10-26 | Compton Charles Lacey III | CEO | Sell | 9K | $24.98 | $223K | 823K |
| 2026-10-19 | Compton Charles Lacey III | CEO | Sell | 9K | $23.08 | $208K | 832K |
| 2026-10-16 | Compton Charles Lacey III | CEO | Sell | 11K | $24.90 | $285K | 841K |
| 2026-10-12 | Bergman Artur | Chief Technology Officer | Sell | 800 | $28.45 | $23K | 1.1M |
| 2026-10-12 | Bergman Artur | Chief Technology Officer | Sell | 6K | $27.64 | $152K | 1.1M |
| 2026-10-12 | Bergman Artur | Chief Technology Officer | Sell | 31K | $26.62 | $818K | 1.1M |
| 2026-10-09 | Bergman Artur | Chief Technology Officer | Sell | 3K | $30.07 | $90K | 1.1M |
| 2026-09-29 | Bergman Artur | Chief Technology Officer | Sell | 4K | $25.26 | $100K | 1.1M |
| 2026-09-28 | Bergman Artur | Chief Technology Officer | Sell | 200 | $25.23 | $5K | 1.1M |
| 2026-09-28 | Bergman Artur | Chief Technology Officer | Sell | 33K | $24.75 | $814K | 1.1M |
| 2026-09-23 | Bergman Artur | Chief Technology Officer | Sell | 86K | $30.65 | $2.6M | 1.1M |
| 2026-09-23 | Bergman Artur | Chief Technology Officer | Sell | 262K | $30.15 | $7.9M | 1.2M |
| 2026-09-23 | Bergman Artur | Chief Technology Officer | Sell | 24K | $29.17 | $709K | 1.5M |
| 2026-09-23 | Bergman Artur | Chief Technology Officer | Sell | 8K | $28.04 | $213K | 1.5M |
| 2026-09-22 | Bergman Artur | Chief Technology Officer | Sell | 28K | $27.82 | $776K | 1.5M |
| 2026-09-21 | Bergman Artur | Chief Technology Officer | Sell | 46K | $27.51 | $1.3M | 1.5M |
| 2026-09-21 | Bergman Artur | Chief Technology Officer | Sell | 1K | $26.62 | $29K | 1.6M |
| 2026-09-21 | Bergman Artur | Chief Technology Officer | Sell | 2K | $25.32 | $61K | 1.6M |
| 2026-09-17 | Bergman Artur | Chief Technology Officer | Sell | 2K | $25.30 | $56K | 1.6M |
| 2026-09-17 | Ford Jeffrey | Principal Accounting Officer | Sell | 6K | $25.37 | $161K | 250K |
| 2026-09-17 | Ford Jeffrey | Principal Accounting Officer | Sell | 37K | $24.58 | $922K | 256K |
| 2026-09-17 | Ford Jeffrey | Principal Accounting Officer | Sell | 2K | $23.57 | $47K | 294K |
| 2026-09-17 | Lovett Scott R. | President, Go to Market | Sell | 6K | $25.38 | $144K | 1.3M |
| 2026-09-17 | Lovett Scott R. | President, Go to Market | Sell | 34K | $24.58 | $844K | 1.3M |
| 2026-09-17 | Lovett Scott R. | President, Go to Market | Sell | 2K | $23.56 | $42K | 1.3M |
| 2026-09-16 | Lovett Scott R. | President, Go to Market | Sell | 35K | $23.85 | $830K | 1.3M |
| 2026-09-16 | Ford Jeffrey | Principal Accounting Officer | Sell | 37K | $23.84 | $884K | 296K |
| 2026-09-15 | Bergman Artur | Chief Technology Officer | Sell | 3K | $25.14 | $63K | 1.6M |
| 2026-09-14 | Compton Charles Lacey III | CEO | Sell | 50K | $24.93 | $1.3M | 852K |
| 2026-09-14 | Bergman Artur | Chief Technology Officer | Sell | 5K | $25.02 | $113K | 1.6M |
| 2026-09-14 | Bergman Artur | Chief Technology Officer | Sell | 24K | $24.54 | $586K | 1.6M |
| 2026-09-14 | Bergman Artur | Chief Technology Officer | Sell | 3K | $23.60 | $64K | 1.6M |
| 2026-09-09 | Bergman Artur | Chief Technology Officer | Sell | 400 | $24.11 | $10K | 1.6M |
| 2026-09-09 | Bergman Artur | Chief Technology Officer | Sell | 9K | $22.66 | $194K | 1.6M |
| 2026-09-08 | Compton Charles Lacey III | CEO | Sell | 2K | $21.23 | $52K | 902K |
| 2026-09-08 | Bergman Artur | Chief Technology Officer | Sell | 300 | $22.51 | $7K | 1.6M |
| 2026-09-03 | Bergman Artur | Chief Technology Officer | Sell | 11K | $21.08 | $227K | 1.6M |
| 2026-09-03 | Bergman Artur | Chief Technology Officer | Sell | 8K | $20.66 | $160K | 1.7M |
| 2026-09-03 | Bergman Artur | Chief Technology Officer | Sell | 18K | $20.66 | $363K | 1.9M |
| 2026-09-02 | Compton Charles Lacey III | CEO | Sell | 9K | $20.42 | $193K | 905K |
| 2026-09-01 | Compton Charles Lacey III | CEO | Sell | 1K | $22.61 | $25K | 914K |
| 2026-09-01 | Compton Charles Lacey III | CEO | Sell | 19K | $21.86 | $415K | 915K |
| 2026-09-01 | Compton Charles Lacey III | CEO | Sell | 36K | $21.10 | $749K | 934K |
| 2026-08-31 | Lovett Scott R. | President, Go to Market | Sell | 20K | $23.00 | $451K | 1.4M |
| 2026-08-31 | PAISLEY CHRISTOPHER B | Director | Sell | 3K | $23.00 | $69K | 280K |
| 2026-08-31 | Compton Charles Lacey III | CEO | Sell | 15K | $23.00 | $346K | 970K |
| 2026-08-31 | Bergman Artur | Chief Technology Officer | Sell | 6K | $23.00 | $143K | 1.9M |
| 2026-08-27 | Bergman Artur | Chief Technology Officer | Sell | 851 | $24.08 | $20K | 1.9M |
| 2026-08-21 | WONG RICHARD | CFO | Sell | 2K | $24.95 | $45K | 1.0M |
| 2026-08-21 | WONG RICHARD | CFO | Sell | 29K | $24.29 | $705K | 1.0M |
| 2026-08-21 | WONG RICHARD | CFO | Sell | 17K | $23.64 | $398K | 1.1M |
| 2026-08-19 | Compton Charles Lacey III | CEO | Sell | 700 | $26.05 | $18K | 985K |
| 2026-08-19 | Compton Charles Lacey III | CEO | Sell | 5K | $25.08 | $135K | 986K |
| 2026-08-19 | Compton Charles Lacey III | CEO | Sell | 5K | $24.08 | $123K | 991K |
| 2026-08-19 | Bergman Artur | Chief Technology Officer | Sell | 4K | $25.78 | $107K | 2.0M |
| 2026-08-19 | Bergman Artur | Chief Technology Officer | Sell | 16K | $24.98 | $411K | 2.0M |
| 2026-08-19 | Bergman Artur | Chief Technology Officer | Sell | 11K | $23.94 | $265K | 2.0M |
| 2026-08-18 | Lovett Scott R. | President, Go to Market | Sell | 15K | $28.60 | $427K | 1.4M |
| 2026-08-18 | WONG RICHARD | CFO | Sell | 148K | $28.61 | $4.2M | 1.1M |
| 2026-08-18 | Compton Charles Lacey III | CEO | Sell | 35K | $28.60 | $988K | 996K |
| 2026-08-18 | Bergman Artur | Chief Technology Officer | Sell | 32K | $28.60 | $926K | 2.0M |
| 2026-08-12 | Loop Paula | Director | Sell | 7K | $30.00 | $220K | 90K |
| 2026-08-07 | Daniels Richard Devon | Director | Sell | 11K | $22.90 | $254K | 51K |
| 2026-08-04 | Compton Charles Lacey III | CEO | Sell | 15K | $25.00 | $372K | 1.0M |
| 2026-07-17 | Compton Charles Lacey III | CEO | Sell | 155 | $21.90 | $3K | 1.0M |
| 2026-07-17 | Compton Charles Lacey III | CEO | Sell | 4K | $21.10 | $89K | 1.0M |
| 2026-07-17 | Compton Charles Lacey III | CEO | Sell | 3K | $20.51 | $56K | 1.0M |
| 2026-07-16 | Compton Charles Lacey III | CEO | Sell | 11K | $20.65 | $236K | 1.1M |
| 2026-06-17 | Lovett Scott R. | President, Go to Market | Sell | 42K | $17.77 | $741K | 1.4M |
| 2026-06-16 | Lovett Scott R. | President, Go to Market | Sell | 35K | $18.15 | $634K | 1.4M |
| 2026-06-03 | Hornik David | Director | Grant | 10K | $0.00 | $0 | 269K |
| 2026-06-03 | Meyers Charles J | Director | Grant | 10K | $0.00 | $0 | 98K |
| 2026-06-03 | PAISLEY CHRISTOPHER B | Director | Grant | 10K | $0.00 | $0 | 15K |
| 2026-06-03 | Smith Vanessa C. | Director | Grant | 10K | $0.00 | $0 | 98K |
| 2026-06-03 | Loop Paula | Director | Grant | 10K | $0.00 | $0 | 98K |
| 2026-06-03 | Daniels Richard Devon | Director | Grant | 10K | $0.00 | $0 | 62K |
| 2026-06-03 | Compton Charles Lacey III | CEO | Sell | 85 | $21.85 | $2K | 1.1M |
| 2026-06-03 | Compton Charles Lacey III | CEO | Sell | 6K | $21.15 | $122K | 1.1M |
| 2026-06-03 | Compton Charles Lacey III | CEO | Sell | 3K | $20.17 | $70K | 1.1M |
| 2026-06-03 | Bergman Artur | Chief Technology Officer | Sell | 100 | $21.83 | $2K | 2.0M |
| 2026-06-03 | Bergman Artur | Chief Technology Officer | Sell | 7K | $21.13 | $141K | 2.0M |
| 2026-06-03 | Bergman Artur | Chief Technology Officer | Sell | 1K | $19.84 | $22K | 2.0M |
| 2026-06-03 | ALVAREZ AIDA | Director | Grant | 10K | $0.00 | $0 | 106K |
| 2026-05-29 | PAISLEY CHRISTOPHER B | Director | Sell | 1K | $16.96 | $17K | 5K |
| 2026-05-29 | Lovett Scott R. | President, Go to Market | Sell | 20K | $16.96 | $333K | 1.5M |
| 2026-05-29 | Compton Charles Lacey III | CEO | Sell | 15K | $16.96 | $255K | 1.1M |
| 2026-05-29 | Bergman Artur | Chief Technology Officer | Sell | 6K | $16.96 | $106K | 2.0M |
| 2026-05-28 | Bergman Artur | Chief Technology Officer | Sell | 1K | $17.02 | $18K | 2.1M |
| 2026-05-27 | Bergman Artur | Chief Technology Officer | Sell | 852 | $17.50 | $15K | 2.1M |
| 2026-05-21 | WONG RICHARD | CFO | Sell | 3K | $16.48 | $41K | 1.2M |
| 2026-05-20 | WONG RICHARD | CFO | Grant | 3K | $9.27 | $23K | 1.2M |
| 2026-05-19 | WONG RICHARD | CFO | Sell | 6K | $16.35 | $103K | 1.2M |
| 2026-05-19 | Compton Charles Lacey III | CEO | Sell | 11K | $16.48 | $186K | 1.1M |
| 2026-05-19 | Bergman Artur | Chief Technology Officer | Sell | 32K | $16.41 | $523K | 2.1M |
| 2026-05-18 | WONG RICHARD | CFO | Sell | 4K | $16.85 | $61K | 1.2M |
| 2026-05-18 | Lovett Scott R. | President, Go to Market | Sell | 15K | $16.85 | $250K | 1.5M |
| 2026-05-18 | Compton Charles Lacey III | CEO | Sell | 34K | $16.85 | $579K | 1.1M |
| 2026-05-18 | Bergman Artur | Chief Technology Officer | Sell | 32K | $16.85 | $542K | 2.1M |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON50 Form 144 notices on file for FSLY worth $42.1M at the prices reported; 20 in the last 90 days worth $25.2M. Latest: The Per Artur Bergman Revocable Trust filed on 2026-10-26 to sell 40,042 shares ($977K) from 2026-10-26.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-10-26 | The Per Artur Bergman Revocable TrustDirector, Officer | 40K | $977K | 0.025% | 2026-10-26 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-10-26 | Charles L. Compton IIIDirector, Officer | 9K | $218K | 0.006% | 2026-10-26 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-10-19 | Charles L. Compton IIIDirector, Officer | 9K | $203K | 0.006% | 2026-10-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-28 | The Per Artur Bergman Revocable TrustDirector, Officer | 111K | $2.8M | 0.070% | 2026-09-28 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-23 | The Per Artur Bergman Revocable TrustDirector, Officer | 354K | $9.2M | 0.222% | 2026-09-23 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-17 | SCOTT LOVETTOfficer | 42K | $984K | 0.026% | 2026-09-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-17 | JEFFREY FORDOfficer | 46K | $1.1M | 0.029% | 2026-09-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-14 | PER ARTUR BERGMAN TRUST REVOCABLE TRUSTDirector, Officer | 139K | $3.2M | 0.087% | 2026-09-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-14 | Charles L. Compton IIIDirector, Officer | 50K | $1.2M | 0.032% | 2026-09-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-08 | Charles L. Compton IIIDirector, Officer | 2K | $50K | 0.002% | 2026-09-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-08 | PER ARTUR BERGMAN TRUST REVOCABLE TRUSTDirector, Officer | 9K | $191K | 0.006% | 2026-09-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-03 | PER ARTUR BERGMAN TRUST REVOCABLE TRUSTDirector, Officer | 36K | $737K | 0.023% | 2026-09-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-02 | Charles L. Compton IIIDirector, Officer | 9K | $196K | 0.006% | 2026-09-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-01 | Charles L. Compton IIIDirector, Officer | 56K | $1.3M | 0.035% | 2026-09-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-31 | PAISLEY CHRISTOPHER BDirector | 3K | $69K | 0.002% | 2026-08-31 | Fidelity Brokerage Services LLC |
| 2026-08-21 | RICHARD WONGOfficer | 48K | $1.1M | 0.030% | 2026-08-21 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-19 | CHARLES L. COMPTON IIIDirector, Officer | 11K | $298K | 0.007% | 2026-08-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-19 | THE PER ARTUR BERGMAN REVOCABLE TRUSTDirector, Officer | 32K | $843K | 0.020% | 2026-08-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-12 | PAULA LOOPDirector | 15K | $422K | 0.009% | 2026-08-12 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-07 | RICHARD DANIELSDirector | 11K | $254K | 0.007% | 2026-08-07 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-04 | CHARLES L. COMPTON IIIDirector, Officer | 15K | $342K | 0.010% | 2026-08-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-07-17 | CHARLES L. COMPTON IIIDirector, Officer | 7K | $144K | 0.005% | 2026-07-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-18 | Lovett Scott R.Officer | 42K | $725K | 0.027% | 2026-06-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-17 | SCOTT LOVETTOfficer | 42K | $724K | 0.027% | 2026-06-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-03 | CHARLES L. COMPTON IIIDirector, Officer | 9K | $193K | 0.006% | 2026-06-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-03 | THE PER ARTUR BERGMAN REVOCABLE TRUSTDirector, Officer | 8K | $164K | 0.005% | 2026-06-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-29 | PAISLEY CHRISTOPHER BDirector | 1K | $17K | 0.001% | 2026-05-29 | Fidelity Brokerage Services LLC |
| 2026-05-28 | THE PER ARTUR BERGMAN REVOCABLE TRUSTDirector, Officer | 1K | $18K | 0.001% | 2026-05-28 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-21 | RICHARD WONGOfficer | 3K | $41K | 0.002% | 2026-05-21 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-19 | RICHARD WONGOfficer | 6K | $103K | 0.004% | 2026-05-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-19 | CHARLES L. COMPTON IIIDirector, Officer | 11K | $188K | 0.007% | 2026-05-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-19 | THE PER ARTUR BERGMAN REVOCABLE TRUSTDirector, Officer | 32K | $532K | 0.020% | 2026-05-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-17 | CHARLES L COMPTON IIIDirector, Officer | 7K | $176K | 0.005% | 2026-04-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-16 | CHARLES L COMPTON IIIDirector, Officer | 11K | $258K | 0.007% | 2026-04-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-18 | SCOTT LOVETTOfficer | 42K | $1.0M | 0.027% | 2026-03-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-13 | Scott LovettOfficer | 34K | $741K | 0.022% | 2026-03-17 | E*TRADE SECURITIES LLC. |
| 2026-03-11 | CHARLES L COMPTON IIIDirector, Officer | 49K | $1.1M | 0.033% | 2026-03-11 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-10 | THE PER ARTUR BERGMAN REVOCABLE TRUSTDirector, Officer | 246K | $5.4M | 0.162% | 2026-03-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-06 | RICHARD WONGOfficer | 5K | $116K | 0.004% | 2026-03-06 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-06 | RICHARD DANIELSDirector | 15K | $313K | 0.010% | 2026-03-06 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-05 | CHARLES L COMPTON IIIDirector, Officer | 37K | $735K | 0.024% | 2026-03-05 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-04 | CHARLES L COMPTON IIIDirector, Officer | 14K | $296K | 0.009% | 2026-03-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-03-03 | RICHARD WONGofficer | 4K | $69K | 0.002% | 2026-02-28 | E*TRADE SECURITIES LLC. |
| 2026-03-03 | Scott LovettOfficer | 76K | $1.4M | 0.050% | 2026-03-04 | E*TRADE SECURITIES LLC. |
| 2026-03-03 | Charles L. Compton IIIDirector, Officer | 10K | $172K | 0.006% | 2026-02-28 | E*TRADE SECURITIES LLC. |
| 2026-03-03 | Charles L. Compton IIIDirector, Officer | 59K | $1.1M | 0.038% | 2026-03-04 | E*TRADE SECURITIES LLC. |
| 2026-03-03 | Artur BergmanDirector, Officer | 5K | $97K | 0.003% | 2026-02-28 | E*TRADE SECURITIES LLC. |
| 2026-03-03 | Artur BergmanDirector, Officer | 25K | $444K | 0.016% | 2026-03-04 | E*TRADE SECURITIES LLC. |
| 2026-02-25 | Artur BergmanDirector, Officer | 836 | $15K | 0.001% | 2026-02-27 | E*TRADE SECURITIES LLC. |
| 2026-02-19 | CHARLES L COMPTON IIIDirector, Officer | 15K | $279K | 0.010% | 2026-02-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON5 holders report 5% or more of FSLY in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 8.9% of the class (13,852,509 shares), filed 2026-07-30 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-30 | 13G/Ano. 1 | Vanguard Portfolio Managementinvestment adviser | 9.9M | 6.2% | 2026-09-30 |
| 2026-08-14 | 13G/Ano. 1 | Legal & General Group Plcnon-US institution | 4.4M | 2.8% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Legal & General Investment Management Ltdnon-US institution | 4.4M | 2.8% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | LGIM Managers (Europe) Limitednon-US institution | 4.3M | 2.7% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Legal & General UCITS ETF Plcnon-US institution | 4.3M | 2.7% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Legal & General Investment Management America Incinvestment adviser, corporation, other entity | 15K | 0.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | LGIM Singapore PTE Ltdnon-US institution | 28K | 0.0% | 2026-06-30 |
| 2026-08-12 | 13G | Capital World Investorsinvestment adviser | 8.2M | 5.3% | 2026-06-30 |
| 2026-08-06 | 13G/Ano. 1 | FMR LLCparent holding company | 12.1M | 7.7% | 2026-06-30 |
| 2026-08-06 | 13G/Ano. 1 | Abigail P. Johnsonindividual | 12.1M | 7.7% | 2026-06-30 |
| 2026-07-30 | 13G/Ano. 3 | BlackRock, Inc.parent holding company | 13.9M | 8.9% | 2026-06-30 |
| 2026-05-11 | 13G/Ano. 1 | Morgan Stanleyparent holding company, corporation | 1.1M | 0.7% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 6 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-12 | 13G/Ano. 5 | Per Artur Bergmanindividual | 7.1M | 4.7% | 2025-12-31 |
| 2026-02-12 | 13G/Ano. 5 | The Per Artur Bergman Revocable Trustother entity | 2.5M | 1.6% | 2025-12-31 |
| 2026-02-12 | 13G/Ano. 5 | The Artur Bergman Remainder Trust One DTD 5/2/2019other entity | 840K | 0.6% | 2025-12-31 |
| 2026-02-12 | 13G/Ano. 5 | The Per Artur Bergman Grantor Retained Annuity Trust No. 4other entity | 793K | 0.5% | 2025-12-31 |
| 2026-02-12 | 13G/Ano. 5 | The PAB 2021 Remainder Trustother entity | 157K | 0.1% | 2025-12-31 |
| 2026-02-12 | 13G/Ano. 5 | The Artur Bergman Remainder Trust Three DTD 5/2/2019other entity | 110K | 0.1% | 2025-12-31 |
| 2026-02-12 | 13G/Ano. 5 | The Per Artur Bergman Grantor Retained Annuity Trust No. 3other entity | 50K | 0.0% | 2025-12-31 |
13F holders
Tracked managers holding FSLY at their latest 13F. JSON6 of the 30 tracked managers held FSLY at their latest 13F, $283.7M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $121.5M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| D. E. Shaw & Co. | 2026-06-30 | 6.6M | $121.5M | 0.06% | +4.0M |
| Two Sigma Investments | 2026-06-30 | 6.1M | $111.3M | 0.08% | +448K |
| Millennium Management | 2026-06-30 | 1.5M | $27.8M | 0.01% | +101K |
| Citadel Advisors | 2026-06-30 | 596K | $10.9M | 0.00% | +136K |
| AQR Capital Management | 2026-06-30 | 337K | $6.2M | 0.00% | +22K |
| Renaissance Technologies | 2026-06-30 | 324K | $6.0M | 0.01% | -194K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn FY 2025 it generated $94.4M of operating cash flow. As of 2026-06-30, cash was $89.8M against $324.0M of debt.
- Cash
- $89.8M
- Debt
- $324.0M
- Equity
- $990.8M
- Total assets
- $1.50B
- Shares outstanding
- 159,300,000
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | n/a | -$15.6M | n/a | -0.10 |
| Q1 FY 2026 | 2026-03-31 | n/a | -$20.5M | n/a | -0.13 |
| Q4 FY 2025derived | 2025-12-31 | n/a | -$15.5M | n/a | n/a |
| Q3 FY 2025 | 2025-09-30 | n/a | -$29.5M | n/a | -0.20 |
| Q2 FY 2025 | 2025-06-30 | n/a | -$37.5M | n/a | -0.26 |
| Q1 FY 2025 | 2025-03-31 | n/a | -$39.1M | n/a | -0.27 |
| Q4 FY 2024derived | 2024-12-31 | n/a | -$32.9M | n/a | n/a |
| Q3 FY 2024 | 2024-09-30 | n/a | -$38.0M | n/a | -0.27 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | n/a | -$121.7M | $94.4M | $28.7M | n/a | n/a |
| FY 2024 | 2024-12-31 | n/a | -$158.1M | $16.4M | $10.3M | n/a | n/a |
| FY 2023 | 2023-12-31 | n/a | -$133.1M | $362K | $11.0M | n/a | n/a |
| FY 2022 | 2022-12-31 | n/a | -$190.8M | -$69.6M | $20.0M | n/a | n/a |
| FY 2021 | 2021-12-31 | n/a | -$222.7M | -$38.5M | $34.8M | n/a | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-24 from the cover page.
What this page is
Fastly in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Fastly (FSLY), SEC CIK 1517413, listed on Nasdaq, classified by the SEC as services-prepackaged software. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-10-26.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-30.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-05.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-26.JSON and CSV
- Company record
- EDGAR filing index for CIK 1517413Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as services-prepackaged software
Other company pages
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- COMPCompass
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- COPConocoPhillips
- CORCencora
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- COSTCostco Wholesale
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Datasets
Frequently Asked Questions
How much of FSLY is sold short?
20,581,799 shares were held short at the 2026-10-15 settlement, 3.7 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is FSLY's daily short volume?
On 2026-11-02, 1,253,719 of the 2,893,722 FSLY shares reported to FINRA were sold short, 43.3% of the day's reported volume. Short volume is a flow for one day, not a position.
Does FSLY have fails to deliver?
The SEC's latest file shows 5,056 FSLY shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are FSLY insiders buying or selling?
Insiders at FSLY reported 65 open-market sells worth $35.9M in the last 90 days and no open-market buys. Latest filing: Bergman Artur (Chief Technology Officer) on 2026-10-26.
Have FSLY insiders filed to sell?
50 Form 144 notices on file for FSLY worth $42.1M at the prices reported; 20 in the last 90 days worth $25.2M. Latest: The Per Artur Bergman Revocable Trust filed on 2026-10-26 to sell 40,042 shares ($977K) from 2026-10-26.
Who owns 5% or more of FSLY?
5 holders report 5% or more of FSLY in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 8.9% of the class (13,852,509 shares), filed 2026-07-30 for an event on 2026-06-30.
What did FSLY report last quarter?
In FY 2025 it generated $94.4M of operating cash flow. As of 2026-06-30, cash was $89.8M against $324.0M of debt.
Which tracked 13F managers own FSLY?
6 of the 30 tracked 13F managers held FSLY shares at their latest filing, $283.7M in all. The largest: D. E. Shaw & Co. (6.6M shares, $121.5M), Two Sigma Investments (6.1M shares, $111.3M), Izzy Englander's Millennium Management (1.5M shares, $27.8M), Ken Griffin's Citadel Advisors (596K shares, $10.9M), Cliff Asness's AQR Capital Management (337K shares, $6.2M), Renaissance Technologies (324K shares, $6.0M).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.