Comparable stake leader
VANGUARD GROUP INC
SEC ownership of Fastly, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001517413.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
17 Sep 2026
- Public ticker
- FSLY on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD GROUP INC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD GROUP INC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
17 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001517413
- Issuer location
- San Francisco, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Fastly, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD GROUP INC
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
17 Sep 2026
13D/G
13F
3/4/5
Lead comparable stake: 11%
13D/G row: VANGUARD GROUP INC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD GROUP INC leads the comparable SEC ownership view at 11%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD GROUP INC's linked filing trail.
Comparable ownership
Top 5
VANGUARD GROUP INC
11%
BlackRock, Inc.
8.9%
FMR LLC
7.7%
Capital World Investors
5.3%
Artur Bergman
4.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
11%
|
$113,747,268
16,111,511 shares
|
$0 | 30 Jun 2025 |
| BlackRock, Inc. |
13F
13D/G
Company
|
8.9%
from 13D/G
|
$279,492,204
15,222,887 shares
|
— | 30 Jun 2026 |
| FMR LLC |
13D/G
13F
Company
|
7.7%
|
$221,889,703
12,085,496 shares
|
+$59,751,849 | 30 Jun 2026 |
| Capital World Investors |
13F
13D/G
Company
|
5.3%
from 13D/G
|
$151,068,577
8,228,136 shares
|
— | 30 Jun 2026 |
| Artur Bergman |
13D/G
3/4/5
Per Artur Bergman · Chief Technology Officer, Director
|
4.7%
|
$72,391,650
7,111,164 shares
|
$0 | 31 Dec 2025 |
| Legal & General Investment Management Ltd |
13D/G
Legal & General Group Plc
|
4.4%
|
$40,414,350
5,725,142 shares
|
-$6,168,559 | 31 Dec 2023 |
| Legal & General Group Plc |
13D/G
13F
Company
|
2.8%
|
$80,168,481
4,366,475 shares
|
-$63,518,274 | 30 Jun 2026 |
| MORGAN STANLEY |
13F
13D/G
Company
|
0.7%
from 13D/G
|
$38,309,896
2,086,595 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$88,716,525.
Buys
$0
Insiders: 0
Sells
$88,716,525
Insiders: 8
Net
-$88,716,525
Shares: -4,628,605
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 4,628,605
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 1,232,149 | $0 | $33,018,856 | -$33,018,856 |
| 3-6 | 0 | 304,062 | $0 | $5,482,085 | -$5,482,085 |
| 6-9 | 0 | 2,250,506 | $0 | $41,438,187 | -$41,438,187 |
| 9-12 | 0 | 841,888 | $0 | $8,777,397 | -$8,777,397 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 21 reporting-owner rows connected to Fastly, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
Abdiel Capital Management, LLC
Net 12M change
-$88,716,524
Latest report
23 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Abdiel Capital Management, LLC | 10%+ Owner | $492,742,544 | Mixed | 06 May 2021 | ||
| Artur Bergman | Chief Technology Officer, Director | $69,705,803 | -$59,056,134 | -46% | Mixed | 23 Sep 2026 |
| Scott R. Lovett | President, Go to Market | $32,526,576 | -$9,122,153 | -22% | Filing P/S | 17 Sep 2026 |
| Richard Wong | Cfo | $26,038,069 | -$5,779,870 | -18% | Filing P/S | 21 Aug 2026 |
| Charles Lacey Compton III | CEO, Director | $21,239,088 | -$11,872,068 | -36% | Filing P/S | 14 Sep 2026 |
| Todd Nightingale | CEO, Director | $14,106,904 | Filing P/S | 28 May 2025 | ||
| Joshua Bixby | CEO, Director | $12,282,239 | Mixed | 16 Aug 2022 | ||
| Paul Luongo | General Counsel | $11,761,620 | Mixed | 16 Feb 2022 | ||
| David Hornik | Director | $7,829,664 | Mixed | 03 Jun 2026 | ||
| Christopher B. Paisley | Director | $6,741,757 | -$85,960 | -1.3% | Mixed | 31 Aug 2026 |
| Jeffrey Ford | Principal Accounting Officer | $6,338,973 | -$2,013,787 | -24% | Filing P/S | 17 Sep 2026 |
| Brett Shirk | Executive Vice President, CRO | $5,491,041 | Mixed | 30 Nov 2023 | ||
| Ronald W. Kisling | Chief Financial Officer | $4,311,543 | Filing P/S | 16 Jul 2025 | ||
| Kelly Wright | Director | $4,002,777 | Mixed | 12 Jul 2021 | ||
| Adriel G. Lares | Chief Financial Officer | $3,725,818 | Mixed | 15 Jul 2021 | ||
| Sunil Dhaliwal | Director | $3,412,217 | Mixed | 21 Jun 2021 | ||
| Aida Alvarez | Director | $3,070,683 | Mixed | 03 Jun 2026 | ||
| Vanessa C. Smith | Director | $2,855,639 | Mixed | 03 Jun 2026 | ||
| Charles J. Meyers | Director | $2,841,341 | Mixed | 03 Jun 2026 | ||
| Paula Loop | Director | $2,713,290 | -$219,960 | -7.5% | Filing P/S | 12 Aug 2026 |
Recent insider transactions for Fastly, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Artur Bergman | FSLY | Class A Common Stock | Sale | -25% | $11,447,909 | $30.16 | -379,602 | 1,138,358 | 23 Sep 2026 | See Footnote. |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -1.8% | $776,178 | $27.82 | -27,900 | 1,517,960 | 22 Sep 2026 | See Footnote. |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -3.08% | $1,345,771 | $27.38 | -49,146 | 1,545,860 | 21 Sep 2026 | See Footnote. |
| Scott R. Lovett | FSLY | Class A Common Stock | Sale | -3.16% | $1,030,529 | $24.64 | -41,815 | 1,281,583 | 17 Sep 2026 | Direct |
| Jeffrey Ford | FSLY | Class A Common Stock | Sale | -15.5% | $1,129,538 | $24.65 | -45,832 | 249,861 | 17 Sep 2026 | Direct |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.14% | $55,660 | $25.30 | -2,200 | 1,595,006 | 17 Sep 2026 | See Footnote. |
| Jeffrey Ford | FSLY | Class A Common Stock | Sale | -11.2% | $884,249 | $23.84 | -37,091 | 295,693 | 16 Sep 2026 | Direct |
| Scott R. Lovett | FSLY | Class A Common Stock | Sale | -2.56% | $830,457 | $23.85 | -34,820 | 1,323,398 | 16 Sep 2026 | Direct |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.16% | $62,850 | $25.14 | -2,500 | 1,597,206 | 15 Sep 2026 | See Footnote. |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -1.91% | $762,301 | $24.53 | -31,079 | 1,599,706 | 14 Sep 2026 | See Footnote. |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -5.58% | $1,256,273 | $24.93 | -50,392 | 851,949 | 14 Sep 2026 | Direct |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.55% | $203,614 | $22.72 | -8,960 | 1,630,785 | 09 Sep 2026 | See Footnote. |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -0.27% | $51,716 | $21.23 | -2,436 | 902,341 | 08 Sep 2026 | Direct |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.02% | $6,753 | $22.51 | -300 | 1,639,745 | 08 Sep 2026 | See Footnote. |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -1.12% | $387,129 | $20.90 | -18,519 | 1,640,045 | 03 Sep 2026 | See Footnote. |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.92% | $363,120 | $20.66 | -17,576 | 1,896,249 | 03 Sep 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -1.03% | $193,132 | $20.42 | -9,458 | 904,777 | 02 Sep 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -5.73% | $1,188,801 | $21.39 | -55,579 | 914,235 | 01 Sep 2026 | Direct |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.32% | $143,175 | $23.00 | -6,225 | 1,913,825 | 31 Aug 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -1.53% | $345,644 | $23.00 | -15,028 | 969,814 | 31 Aug 2026 | Direct |
| Scott R. Lovett | FSLY | Class A Common Stock | Sale | -1.42% | $451,352 | $23.00 | -19,624 | 1,358,218 | 31 Aug 2026 | Direct |
| Christopher B. Paisley | FSLY | Class A Common Stock | Sale | -1.06% | $69,000 | $23.00 | -3,000 | 280,485 | 31 Aug 2026 | See Footnote |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.04% | $20,492 | $24.08 | -851 | 1,920,050 | 27 Aug 2026 | Direct |
| Richard Wong | FSLY | Class A Common Stock | Sale | -4.37% | $1,148,288 | $24.09 | -47,676 | 1,043,610 | 21 Aug 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -1.12% | $276,427 | $24.69 | -11,198 | 984,842 | 19 Aug 2026 | Direct |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -1.58% | $783,341 | $24.72 | -31,687 | 1,973,504 | 19 Aug 2026 | Direct |
| Scott R. Lovett | FSLY | Class A Common Stock | Sale | -1.07% | $427,170 | $28.60 | -14,936 | 1,377,842 | 18 Aug 2026 | Direct |
| Richard Wong | FSLY | Class A Common Stock | Sale | -11.9% | $4,234,709 | $28.61 | -148,015 | 1,091,286 | 18 Aug 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -3.35% | $988,187 | $28.60 | -34,552 | 996,040 | 18 Aug 2026 | Direct |
| Artur Bergman | FSLY | Class A Common Stock | Sale | -1.59% | $926,268 | $28.60 | -32,387 | 2,005,191 | 18 Aug 2026 | Direct |
| Paula Loop | FSLY | Class A Common Stock | Sale | -7.5% | $219,960 | $30.00 | -7,332 | 90,443 | 12 Aug 2026 | Direct |
| Richard Devon Daniels | FSLY | Class A Common Stock | Sale | -17.8% | $253,743 | $22.90 | -11,080 | 51,197 | 07 Aug 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -1.42% | $371,700 | $25.00 | -14,868 | 1,030,592 | 04 Aug 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -0.67% | $147,763 | $20.89 | -7,073 | 1,045,460 | 17 Jul 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -1.07% | $235,658 | $20.65 | -11,412 | 1,052,533 | 16 Jul 2026 | Direct |
| Scott R. Lovett | FSLY | Class A Common Stock | Sale | -2.91% | $741,293 | $17.77 | -41,716 | 1,392,778 | 17 Jun 2026 | Direct |
| Scott R. Lovett | FSLY | Class A Common Stock | Sale | -2.38% | $633,780 | $18.15 | -34,919 | 1,434,494 | 16 Jun 2026 | Direct |
| David Hornik | FSLY | Class A Common Stock | Award | 3.7% | 9,601 | 269,431 | 03 Jun 2026 | Direct | ||
| Charles J. Meyers | FSLY | Class A Common Stock | Award | 10.9% | 9,601 | 97,775 | 03 Jun 2026 | Direct | ||
| Christopher B. Paisley | FSLY | Class A Common Stock | Award | 183.7% | 9,601 | 14,828 | 03 Jun 2026 | Direct | ||
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -0.87% | $193,617 | $20.79 | -9,313 | 1,063,945 | 03 Jun 2026 | Direct |
| Vanessa C. Smith | FSLY | Class A Common Stock | Award | 10.8% | 9,601 | 98,267 | 03 Jun 2026 | Direct | ||
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.39% | $165,346 | $20.96 | -7,889 | 2,038,638 | 03 Jun 2026 | Direct |
| Paula Loop | FSLY | Class A Common Stock | Award | 10.9% | 9,601 | 97,775 | 03 Jun 2026 | Direct | ||
| Aida Alvarez | FSLY | Class A Common Stock | Award | 9.99% | 9,601 | 105,667 | 03 Jun 2026 | Direct | ||
| Richard Devon Daniels | FSLY | Class A Common Stock | Award | 18.2% | 9,601 | 62,277 | 03 Jun 2026 | Direct | ||
| Artur Bergman | FSLY | Class A Common Stock | Sale | -0.3% | $105,576 | $16.96 | -6,225 | 2,046,527 | 29 May 2026 | Direct |
| Charles Lacey Compton III | FSLY | Class A Common Stock | Sale | -1.38% | $254,875 | $16.96 | -15,028 | 1,073,258 | 29 May 2026 | Direct |
| Christopher B. Paisley | FSLY | Class A Common Stock | Sale | -16.1% | $16,960 | $16.96 | -1,000 | 5,227 | 29 May 2026 | Direct |
| Scott R. Lovett | FSLY | Class A Common Stock | Sale | -1.32% | $332,789 | $16.96 | -19,622 | 1,469,413 | 29 May 2026 | Direct |
* marks a reported price that did not pass the local price check.