Security key
04523Y105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 74,247,101
- Total 13F value
- $1,306,720,369
- Share change
- -515,230
- Put/Call ratio
- 40%
- SEC-reported price per share
- $17.60
- Number of holders
- 162
- Value change
- -$2,830,981
- Number of buys
- 75
- Number of sells
- 80
- Shares outstanding
- 82,107,547
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 2024
Institutions
162
Top holders
10
ASPN full security history
Ownership snapshot
Full 13F holder table
ASPEN AEROGELS INC SEC filings
ASPEN AEROGELS INC company facts
Broader feeds
Ownership snapshot
Top reported holders of ASPN - ASPEN AEROGELS 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
KIM, LLC
Disclosed value leader
KIM, LLC
Comparable rows
15/15
Latest evidence
31 Dec 2023
13F
Lead comparable stake: 19%
Showing 1-6 of 15 holder rows.
Quick read
KIM, LLC leads the comparable SEC ownership view at 19%.
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 KIM, LLC's linked filing trail.
Comparable ownership
Top 5
KIM, LLC
19%
BlackRock Finance, Inc.
4.9%
VANGUARD GROUP INC
4.2%
OAKTOP CAPITAL MANAGEMENT II, L.P.
3.9%
GEORGE KAISER FAMILY FOUNDATION
3.9%
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 |
|---|---|---|---|---|---|
| KIM, LLC |
13F
Company
|
19%
|
$249,015,122
15,780,426 shares
|
— | 31 Dec 2023 |
| BlackRock Finance, Inc. |
13F
Company
|
4.9%
|
$63,987,681
4,054,986 shares
|
— | 31 Dec 2023 |
| VANGUARD GROUP INC |
13F
Company
|
4.2%
|
$54,343,102
3,443,796 shares
|
— | 31 Dec 2023 |
| OAKTOP CAPITAL MANAGEMENT II, L.P. |
13F
Company
|
3.9%
|
$50,413,282
3,194,758 shares
|
— | 31 Dec 2023 |
| GEORGE KAISER FAMILY FOUNDATION |
13F
Individual
|
3.9%
|
$49,980,341
3,167,322 shares
|
— | 31 Dec 2023 |
| NEEDHAM INVESTMENT MANAGEMENT LLC |
13F
Company
|
3.6%
|
$46,825,572
2,967,400 shares
|
— | 31 Dec 2023 |
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 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
162
Shares
74,247,101
Rows available
162
| 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 2024 vs Q1 2024 Across Filers
Q1 2024 holders
162
Q1 2024 holders
162
Holder diff
0
| Investor | Q1 2024 Shares | Q1 2024 Shares | Share Diff | Share Chg % | Q1 2024 value | Q1 2024 value | Value change | Value Chg % |
|---|