Security key
04523Y105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 28,413,761
- Total 13F value
- $849,796,727
- Share change
- +4,230,358
- Put/Call ratio
- 49%
- SEC-reported price per share
- $29.92
- Number of holders
- 113
- Value change
- +$128,951,542
- Number of buys
- 66
- Number of sells
- 33
- 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
Q2 2021
Institutions
113
Top holders
10
ASPN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2021
Previous quarter: Q1 2021
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
GEORGE KAISER FAMILY FOUN...
Disclosed value leader
GEORGE KAISER FAMILY FOUN...
Comparable rows
15/15
Latest evidence
31 Mar 2021
13F
Lead comparable stake: 3.9%
Showing 1-6 of 15 holder rows.
Quick read
GEORGE KAISER FAMILY FOUNDATION leads the comparable SEC ownership view at 3.9%.
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 GEORGE KAISER FAMILY FOUNDATION's linked filing trail.
Comparable ownership
Top 5
GEORGE KAISER FAMILY FOUNDATION
3.9%
OAKTOP CAPITAL MANAGEMENT II, L.P.
3.6%
Telemark Asset Management, LLC
2.5%
BlackRock Finance, Inc.
2.3%
VANGUARD GROUP INC
1.5%
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 |
|---|---|---|---|---|---|
| GEORGE KAISER FAMILY FOUNDATION |
13F
Individual
|
3.9%
|
$64,423,000
3,167,322 shares
|
— | 31 Mar 2021 |
| OAKTOP CAPITAL MANAGEMENT II, L.P. |
13F
Company
|
3.6%
|
$59,795,000
2,939,758 shares
|
— | 31 Mar 2021 |
| Telemark Asset Management, LLC |
13F
Company
|
2.5%
|
$41,189,000
2,025,000 shares
|
— | 31 Mar 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
2.3%
|
$37,766,000
1,856,748 shares
|
— | 31 Mar 2021 |
| VANGUARD GROUP INC |
13F
Company
|
1.5%
|
$24,416,000
1,200,320 shares
|
— | 31 Mar 2021 |
| NEEDHAM INVESTMENT MANAGEMENT LLC |
13F
Company
|
1.3%
|
$22,435,000
1,103,000 shares
|
— | 31 Mar 2021 |
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 Q2 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
113
Shares
28,413,761
Rows available
113
| 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 Q2 2021 vs Q1 2021 Across Filers
Q1 2021 holders
83
Q2 2021 holders
113
Holder diff
30
| Investor | Q1 2021 Shares | Q2 2021 Shares | Share Diff | Share Chg % | Q1 2021 value | Q2 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend