ASPEN AEROGELS INC - Common Stock (ASPN)

CUSIP: 04523Y105

Q1 2019 13F Holders as of 31 Mar 2019

Holder snapshot 6 signals
Share change
-6,299
SEC-reported price per share
$2.55
Number of holders
34
Value change
+$462,305
Number of buys
16
Number of sells
12
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
82,107,547

Security key

04523Y105

Report period

Q1 2019

Institutions

34

Top holders

10

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 Dec 2018
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. 3.2%
ARIEL INVESTMENTS, LLC 2.2%
Telemark Asset Management, LLC 1.4%
NEEDHAM INVESTMENT MANAGEMENT LLC 1.4%

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
13F
3.9%
$6,746,000
3,167,322 shares
31 Dec 2018
OAKTOP CAPITAL MANAGEMENT II, L.P.
13F
Company
13F
3.2%
$5,524,000
2,593,272 shares
31 Dec 2018
ARIEL INVESTMENTS, LLC
13F
Company
13F
2.2%
$3,890,000
1,826,280 shares
31 Dec 2018
Telemark Asset Management, LLC
13F
Company
13F
1.4%
$2,497,000
1,172,500 shares
31 Dec 2018
NEEDHAM INVESTMENT MANAGEMENT LLC
13F
Company
13F
1.4%
$2,408,000
1,130,400 shares
31 Dec 2018
ROYCE & ASSOCIATES LP
13F
Company
13F
1%
$1,812,000
850,475 shares
31 Dec 2018
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 2019

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
34
Shares
16,264,254
Rows available
34
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 2019 vs Q1 2019 Across Filers

Q1 2019 holders
34
Q1 2019 holders
34
Holder diff
0
Investor Q1 2019 Shares Q1 2019 Shares Share Diff Share Chg % Q1 2019 value Q1 2019 value Value change Value Chg %
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