Security key
002121101
- Security type / class
- Equity / Common Stock
- Shares outstanding
- 71,754,597
- Total 13F shares
- 66,068,645
- Share change
- +372,486
- Total reported value
- $744,229,727
- Put/Call ratio
- 56%
- Reported price per share
- $11.26
- Number of holders
- 132
- Value change
- +$6,894,407
- Number of buys
- 58
- Number of sells
- 68
Security identity
2 facts
Holder snapshot
9 facts
Report period
Q2 2021
Institutions
132
Top holders
10
ATEN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2021
Previous quarter: Q1 2021
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.
Lead holder
SUMMIT PARTNERS L P
13D/G signal
—
Evidence rows
15
Latest as of
31 Mar 2021
13F
Lead comparable stake: 13%
Showing 1-6 of 15 holder rows.
Rank 1 holder
SUMMIT PARTNERS L P
13F
- Ownership
- 13%
- Position
- $91.88M
Rank 2 holder
VIEX Capital Advisors, LLC
13F
- Ownership
- 11%
- Position
- $73.91M
Rank 3 holder
BlackRock Finance, Inc.
13F
- Ownership
- 7.9%
- Position
- $54.29M
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| SUMMIT PARTNERS L P |
13F
Company
|
13%
|
$91,881,000
9,560,941 shares
|
— | 31 Mar 2021 |
| VIEX Capital Advisors, LLC |
13F
Company
|
11%
|
$73,911,000
7,691,096 shares
|
— | 31 Mar 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
7.9%
|
$54,286,000
5,649,021 shares
|
— | 31 Mar 2021 |
| VANGUARD GROUP INC |
13F
Company
|
6.7%
|
$46,295,000
4,817,311 shares
|
— | 31 Mar 2021 |
| Legal & General Group Plc |
13F
Company
|
5.1%
|
$35,432,000
3,686,973 shares
|
— | 31 Mar 2021 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
4.5%
|
$31,064,000
3,232,433 shares
|
— | 31 Mar 2021 |
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 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
132
Shares
66,068,645
Rows available
132
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* 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 failed the local validity check.
Compare Q2 2021 vs Q1 2021 Across Filers
Q1 2021 holders
133
Q2 2021 holders
132
Holder diff
-1
| Investor | Q1 2021 Shares | Q2 2021 Shares | Share Diff | Share Chg % | Q1 2021 value | Q2 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend