Security key
04523Y105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 74,870,231
- Total 13F value
- $1,181,354,395
- Share change
- +8,015,312
- Put/Call ratio
- 154%
- SEC-reported price per share
- $15.78
- Number of holders
- 166
- Value change
- +$136,924,909
- Number of buys
- 76
- Number of sells
- 70
- 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
Q4 2023
Institutions
166
Top holders
10
ASPN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
ASPEN AEROGELS INC SEC filings
ASPEN AEROGELS INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 04523Y105
Recent filing periods:
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
30 Sep 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.
4.7%
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%
|
$135,711,664
15,780,426 shares
|
— | 30 Sep 2023 |
| BlackRock Finance, Inc. |
13F
Company
|
4.7%
|
$33,313,881
3,873,707 shares
|
— | 30 Sep 2023 |
| VANGUARD GROUP INC |
13F
Company
|
4.2%
|
$29,634,628
3,445,887 shares
|
— | 30 Sep 2023 |
| OAKTOP CAPITAL MANAGEMENT II, L.P. |
13F
Company
|
3.9%
|
$27,474,919
3,194,758 shares
|
— | 30 Sep 2023 |
| GEORGE KAISER FAMILY FOUNDATION |
13F
Individual
|
3.9%
|
$27,238,969
3,167,322 shares
|
— | 30 Sep 2023 |
| Samjo Capital LLC |
13F
Company
|
3.7%
|
$25,929,000
3,015,000 shares
|
— | 30 Sep 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 Q4 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
166
Shares
74,870,231
Rows available
166
| 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 Q4 2023 vs Q3 2023 Across Filers
Q3 2023 holders
157
Q4 2023 holders
166
Holder diff
9
| Investor | Q3 2023 Shares | Q4 2023 Shares | Share Diff | Share Chg % | Q3 2023 value | Q4 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend