Security key
002121101
- Security type / class
- Equity / Common
- Total 13F shares
- 70,069,030
- Total 13F value
- $1,145,010,285
- Share change
- +4,798,440
- Put/Call ratio
- 642%
- SEC-reported price per share
- $16.34
- Number of holders
- 250
- Value change
- +$74,061,719
- Number of buys
- 137
- Number of sells
- 111
- Shares outstanding
- 71,994,925
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
Q1 2025
Institutions
250
Top holders
10
ATEN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
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 (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
Legal & General Investmen...
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
31 Dec 2024
13D/G
13F
Lead comparable stake: 3.1%
13D/G row: Legal & General Investment Management Ltd
Showing 1-6 of 15 holder rows.
Quick read
Legal & General Investment Management Ltd leads the comparable SEC ownership view at 3.1%.
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 Legal & General Investment Management Ltd's linked filing trail.
Comparable ownership
Top 5
Legal & General Investment Manage...
3.1%
BlackRock, Inc.
19%
VANGUARD GROUP INC
10%
STATE STREET CORP
4.6%
MIRAE ASSET GLOBAL ETFS HOLDINGS ...
3.4%
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 |
|---|---|---|---|---|---|
| Legal & General Investment Management Ltd |
13D/G
Legal & General Group Plc
|
3.1%
|
$46,550,093
2,405,702 shares
|
$0 | 31 Dec 2021 |
| BlackRock, Inc. |
13F
Company
|
19%
|
$250,186,568
13,597,096 shares
|
— | 31 Dec 2024 |
| VANGUARD GROUP INC |
13F
Company
|
10%
|
$135,417,929
7,359,670 shares
|
— | 31 Dec 2024 |
| STATE STREET CORP |
13F
Company
|
4.6%
|
$61,282,028
3,330,545 shares
|
— | 31 Dec 2024 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
Company
|
3.4%
|
$45,631,970
2,479,989 shares
|
— | 31 Dec 2024 |
| Penserra Capital Management LLC |
13F
Company
|
2.7%
|
$35,973,000
1,955,081 shares
|
— | 31 Dec 2024 |
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 Q1 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
250
Shares
70,069,030
Rows available
250
| 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 Q1 2025 vs Q1 2025 Across Filers
Q1 2025 holders
250
Q1 2025 holders
250
Holder diff
0
| Investor | Q1 2025 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q1 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend