Aspen Technology, Inc.
AZPNDelisted Mar 12, 2025- Industry
- Services-Computer Programming Services
- SEC CIK
- 0001897982
Aspen Technology, Inc. was delisted on Mar 12, 2025; its insiders filed their last Form 4 on Mar 13, 2025; 450 institutions reported holding it in 13F filings for Q4 2024, worth $6.92B in total; no superinvestor held it.
Holders of 5% or more of AZPN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Aspen Technology, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Emerson Electric Co | 13D/A | 100.00%100 shares | +42.60 ppfrom 57.40% | May 26, 20227 filings | Mar 12, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
27 Schedule 13D and 13G filings on Aspen Technology, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 20255:21 PM ET | Kayne Anderson Rudnick Investment Management LLC | 13G/A | 0.00%0 shares | –Below 5% | Mar 31, 2025 | SEC |
| Mar 12, 20259:07 AM ET | Emerson Electric Coand 2 others | 13D/A | 100.00%100 shares | +42.60 ppfrom 57.40% | Mar 12, 2025 | SEC |
| Mar 5, 20254:41 PM ET | Emerson Electric Coand 2 others | 13D/A | 57.40%36.3M shares | 0.00 ppfrom 57.40% | Mar 3, 2025 | SEC |
| Jan 27, 20257:09 AM ET | Emerson Electric Coand 4 others | 13D/A | 57.40%36.3M shares | – | Jan 27, 2025 | SEC |
| Nov 8, 2024 | BlackRock, Inc. | 13G/AOld format | – | – | – | SEC |
| Nov 5, 20247:01 AM ET | Emerson Electric Co | 13D/AOld format | – | – | – | SEC |
| Oct 22, 2024 | BlackRock, Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 13, 2024 | Kayne Anderson Rudnick Investment Management LLC | 13G/AOld format | – | – | – | SEC |
| Jan 25, 20244:59 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Oct 13, 20235:01 PM ET | Emerson Electric Co | 13D/AOld format | – | – | – | SEC |
| Oct 11, 20239:11 AM ET | Emerson Electric Co | 13D/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Kayne Anderson Rudnick Investment Management LLC | 13G/AOld format | – | – | – | SEC |
| Feb 7, 20232:10 PM ET | BlackRock Inc. | 13GOld format | – | New | – | SEC |
| Jun 9, 20223:12 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| May 26, 20225:19 PM ET | Emerson Electric Co | 13DOld format | – | New | – | SEC |
| May 9, 20223:23 PM ET | BlackRock Inc. | 13GOld format | – | – | – | SEC |
| Feb 14, 2022 | Kayne Anderson Rudnick Investment Management LLC | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2022 | BlueSpruce Investments, LP | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 1, 20225:08 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Dec 10, 2021 | Kayne Anderson Rudnick Investment Management LLC | 13G/AOld format | – | – | – | SEC |
| Mar 10, 2021 | Kayne Anderson Rudnick Investment Management LLC | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2021 | BlueSpruce Investments, LP | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2021 | Waddell & Reed Financial Inc | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2021 | Kayne Anderson Rudnick Investment Management LLC | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 28, 20215:55 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
1 notice from officers, directors and other affiliates planning to sell Aspen Technology, Inc. shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Feb 28, 20233:06 PM ET | Chawla ManishOfficer | 1.29K | $277.5K | Feb 28, 2023 | Fidelity Brokerage Services LLC | SEC |