Security key
045327103
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 67,055,637
- Total 13F value
- $9,677,197,351
- Share change
- +46,131
- Put/Call ratio
- 135%
- SEC-reported price per share
- $144.33
- Number of holders
- 370
- Value change
- +$24,846,191
- Number of buys
- 187
- Number of sells
- 151
Open additional details 1 more signal available
Report period
Q1 2021
Institutions
370
Top holders
10
AZPN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Aspen Technology, Inc. SEC filings
Aspen Technology, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 045327103
Recent filing periods:
Ownership snapshot
Top reported holders of AZPN - ASPEN TECHNOLOGY 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
KAYNE ANDERSON RUDNICK IN...
Disclosed value leader
KAYNE ANDERSON RUDNICK IN...
Comparable rows
0/15
Latest evidence
31 Dec 2020
13F
Highest disclosed value: $868,334,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC has the largest disclosed position value at $868.33M.
0 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 KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC's linked filing trail.
Disclosed position value
Top 5
KAYNE ANDERSON RUDNICK INVESTMENT...
$868.33M
VANGUARD GROUP INC
$797.21M
BlueSpruce Investments, LP
$507.72M
BlackRock Finance, Inc.
$479.52M
WADDELL & REED FINANCIAL INC
$434.77M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$868,334,000
6,666,669 shares
|
— | 31 Dec 2020 |
| VANGUARD GROUP INC |
13F
Company
|
—
class O/S missing
|
$797,207,000
6,120,595 shares
|
— | 31 Dec 2020 |
| BlueSpruce Investments, LP |
13F
Company
|
—
class O/S missing
|
$507,725,000
3,898,083 shares
|
— | 31 Dec 2020 |
| BlackRock Finance, Inc. |
13F
Company
|
—
class O/S missing
|
$479,519,000
3,681,516 shares
|
— | 31 Dec 2020 |
| WADDELL & REED FINANCIAL INC |
13F
Company
|
—
class O/S missing
|
$434,767,000
3,337,946 shares
|
— | 31 Dec 2020 |
| FMR LLC |
13F
Company
|
—
class O/S missing
|
$415,926,000
3,193,300 shares
|
— | 31 Dec 2020 |
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 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
370
Shares
67,055,637
Rows available
370
| 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 2021 vs Q4 2025 Across Filers
Q4 2025 holders
1
Q1 2021 holders
370
Holder diff
369
| Investor | Q4 2025 Shares | Q1 2021 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend