Security key
002121101
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 44,313,996
- Total 13F value
- $276,066,230
- Share change
- -799,639
- Put/Call ratio
- 4909%
- SEC-reported price per share
- $6.23
- Number of holders
- 88
- Value change
- -$4,727,101
- Number of buys
- 40
- Number of sells
- 39
- Shares outstanding
- 71,754,597
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2018
Institutions
88
Top holders
10
ATEN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2018
Previous quarter: Q1 2018
A10 Networks, Inc. SEC filings
A10 Networks, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 002121101
Recent filing periods:
Ownership snapshot
Top reported holders of ATEN - A10 Networks, Inc. - Common Stock (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
SUMMIT PARTNERS L P
Disclosed value leader
SUMMIT PARTNERS L P
Comparable rows
15/15
Latest evidence
31 Mar 2018
13F
Lead comparable stake: 13%
Showing 1-6 of 15 holder rows.
Quick read
SUMMIT PARTNERS L P leads the comparable SEC ownership view at 13%.
15 of 15 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 SUMMIT PARTNERS L P's linked filing trail.
Comparable ownership
Top 5
SUMMIT PARTNERS L P
13%
BlackRock Finance, Inc.
8.6%
VIEX Capital Advisors, LLC
5.7%
VANGUARD GROUP INC
5.4%
ALLIANCEBERNSTEIN L.P.
4.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| SUMMIT PARTNERS L P |
13F
Company
|
13%
|
$55,246,000
9,492,417 shares
|
— | 31 Mar 2018 |
| BlackRock Finance, Inc. |
13F
Company
|
8.6%
|
$36,040,000
6,192,324 shares
|
— | 31 Mar 2018 |
| VIEX Capital Advisors, LLC |
13F
Company
|
5.7%
|
$23,895,000
4,105,596 shares
|
— | 31 Mar 2018 |
| VANGUARD GROUP INC |
13F
Company
|
5.4%
|
$22,429,000
3,853,735 shares
|
— | 31 Mar 2018 |
| ALLIANCEBERNSTEIN L.P. |
13F
Company
|
4.9%
|
$20,409,000
3,506,662 shares
|
— | 31 Mar 2018 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
3.1%
|
$12,738,000
2,188,700 shares
|
— | 31 Mar 2018 |
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.
13F holder rows
Institutional holders as of Q2 2018
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
88
Shares
44,313,996
Rows available
88
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2018 vs Q1 2018 Across Filers
Q1 2018 holders
96
Q2 2018 holders
88
Holder diff
-8
| Investor | Q1 2018 Shares | Q2 2018 Shares | Share Diff | Share Chg % | Q1 2018 value | Q2 2018 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend