What does CUSIP 002121101 represent in this 13F holders report?

CUSIP 002121101 is the security identifier for ATEN - A10 Networks, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held ATEN - A10 Networks, Inc. - Common Stock in Q3 2018?

86 institutional investors reported ATEN - A10 Networks, Inc. - Common Stock for Q3 2018. Use the holders table for investor-level position and value details.

A10 Networks, Inc. - Common Stock (ATEN)

CUSIP: 002121101

Q3 2018 13F Holders as of 30 Sep 2018

Type / Class: Equity / Common Stock
Shares outstanding: 77,603,290
Total 13F shares: 44,644,215
Share change: -1,473,243
Total reported value: $271,437,248
Put/Call ratio: 220%
Price per share: $6.08
Number of holders: 86
Value change: -$9,103,627
Number of buys: 41
Number of sells: 39

Quarterly Holders Quick Answers

What is CUSIP 002121101?
CUSIP 002121101 identifies ATEN - A10 Networks, Inc. - Common Stock in SEC institutional holdings data.

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Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q4 2018
Previous quarter: Q2 2018

Recent filing periods for CUSIP 002121101:

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Top shareholders of ATEN - A10 Networks, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
SUMMIT PARTNERS L P	13F	Company	12%	9,492,417	$59,138,000	—	30 Jun 2018	13F
BlackRock Finance, Inc.	13F	Company	8.1%	6,284,620	$39,153,000	—	30 Jun 2018	13F
VIEX Capital Advisors, LLC	13F	Company	4.7%	3,680,033	$22,927,000	—	30 Jun 2018	13F
VANGUARD GROUP INC	13F	Company	4.7%	3,670,962	$22,870,000	—	30 Jun 2018	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	4.5%	3,494,142	$21,769,000	—	30 Jun 2018	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	2.6%	1,997,400	$12,444,000	—	30 Jun 2018	13F
Divisar Capital Management LLC	13F	Company	1.9%	1,455,046	$9,065,000	—	30 Jun 2018	13F
Legal & General Group Plc	13F	Company	1.8%	1,361,216	$8,480,000	—	30 Jun 2018	13F
ROYCE & ASSOCIATES LP	13F	Company	1.3%	1,039,719	$6,477,000	—	30 Jun 2018	13F
STATE STREET CORP	13F	Company	1.2%	965,701	$6,015,000	—	30 Jun 2018	13F
Spark Investment Management LLC	13F	Company	0.87%	672,200	$4,187,000	—	30 Jun 2018	13F
JPMORGAN CHASE & CO	13F	Company	0.8%	624,275	$3,889,000	—	30 Jun 2018	13F
NORTHERN TRUST CORP	13F	Company	0.76%	593,044	$3,695,000	—	30 Jun 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.61%	472,182	$2,941,000	—	30 Jun 2018	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.61%	470,112	$2,929,000	—	30 Jun 2018	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.6%	462,140	$2,879,000	—	30 Jun 2018	13F
Roumell Asset Management, LLC	13F	Company	0.56%	431,197	$2,686,000	—	30 Jun 2018	13F
Parallax Volatility Advisers, L.P.	13F	Company	0.55%	428,344	$2,669,000	—	30 Jun 2018	13F
CITADEL ADVISORS LLC	13F	Company	0.51%	396,895	$2,473,000	—	30 Jun 2018	13F
PANAGORA ASSET MANAGEMENT INC	13F	Company	0.48%	372,127	$2,318,000	—	30 Jun 2018	13F
D. E. Shaw & Co., Inc.	13F	Company	0.47%	361,633	$2,253,000	—	30 Jun 2018	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.44%	343,486	$2,140,000	—	30 Jun 2018	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.36%	282,971	$1,763,000	—	30 Jun 2018	13F
MORGAN STANLEY	13F	Company	0.35%	273,427	$1,704,000	—	30 Jun 2018	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.34%	267,713	$1,668,000	—	30 Jun 2018	13F
TEACHERS ADVISORS, LLC	13F	Company	0.34%	265,895	$1,657,000	—	30 Jun 2018	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.33%	256,454	$1,598,000	—	30 Jun 2018	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.31%	242,283	$1,509,000	—	30 Jun 2018	13F
ALGERT GLOBAL LLC	13F	Company	0.31%	240,976	$1,501,000	—	30 Jun 2018	13F
Bank of New York Mellon Corp	13F	Company	0.31%	240,757	$1,500,000	—	30 Jun 2018	13F
PARADIGM CAPITAL MANAGEMENT INC/NY	13F	Company	0.29%	223,400	$1,391,000	—	30 Jun 2018	13F
Alambic Investment Management, L.P.	13F	Company	0.27%	210,919	$1,314,000	—	30 Jun 2018	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	0.27%	206,709	$1,288,000	—	30 Jun 2018	13F
MENTA CAPITAL LLC	13F	Company	0.26%	199,511	$1,243,000	—	30 Jun 2018	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.25%	197,700	$1,232,000	—	30 Jun 2018	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.2%	152,315	$949,000	—	30 Jun 2018	13F
QS Investors, LLC	13F	Company	0.16%	124,823	$778,000	—	30 Jun 2018	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.14%	106,551	$664,000	—	30 Jun 2018	13F
DEUTSCHE BANK AG\	13F	Company	0.13%	100,523	$627,000	—	30 Jun 2018	13F
Allianz Asset Management GmbH	13F	Company	0.12%	95,215	$593,000	—	30 Jun 2018	13F
Swiss National Bank	13F	Company	0.11%	87,700	$546,000	—	30 Jun 2018	13F
OXFORD ASSET MANAGEMENT LLP	13F	Company	0.1%	80,814	$505,000	—	30 Jun 2018	13F
CREDIT SUISSE AG/	13F	Company	0.1%	78,400	$489,000	—	30 Jun 2018	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.1%	76,492	$477,000	—	30 Jun 2018	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.1%	75,651	$471,306	—	30 Jun 2018	13F
BRC Group Holdings, Inc.	13F	Company	0.1%	75,000	$467,000	—	30 Jun 2018	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.1%	74,472	$464,000	—	30 Jun 2018	13F
Man Group plc	13F	Company	0.09%	69,436	$433,000	—	30 Jun 2018	13F
Stone Ridge Asset Management LLC	13F	Company	0.09%	68,701	$428,000	—	30 Jun 2018	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.09%	68,595	$427,000	—	30 Jun 2018	13F

Institutional Holders of A10 Networks, Inc. - Common Stock (ATEN) as of Q3 2018

As of 30 Sep 2018, A10 Networks, Inc. - Common Stock (ATEN) was held by 86 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 44,644,215 shares. The largest 10 holders included SUMMIT PARTNERS L P, BlackRock Inc., VIEX Capital Advisors, LLC, Vanguard Group Inc, ALLIANCEBERNSTEIN L.P., RENAISSANCE TECHNOLOGIES LLC, Divisar Capital Management LLC, Legal & General Group Plc, ETF MANAGERS GROUP, LLC, and ROYCE & ASSOCIATES LP. This page lists 86 institutional shareholders reporting positions in this security for the Q3 2018 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2018 vs Q2 2018 Across Filers

Q2 2018 holders

Q3 2018 holders

Holder diff

-2

Investor	Q2 2018 Shares	Q3 2018 Shares	Share Diff	Share Chg %	Q2 2018 Value $	Q3 2018 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.