Aspen Aerogels Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NYSE:ASPN Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
14 May 24	SellUS$82,250,000	Spring Creek Capital, LLC	Company	3,500,000	US$23.50
06 May 24	SellUS$1,228,722	Gregg Landes	Individual	48,386	US$25.65
20 Nov 23	SellUS$1,707	Gregg Landes	Individual	155	US$11.01
07 Sep 23	BuyUS$49,009	Steven Mitchell	Individual	7,541	US$6.50
05 Sep 23	BuyUS$308,455	Steven Mitchell	Individual	50,000	US$6.17
22 Aug 23	BuyUS$22,581	Mark Noetzel	Individual	4,000	US$5.65
08 Aug 23	BuyUS$170,698	Donald Young	Individual	25,000	US$6.83

Insider Trading Volume

Insider Buying: ASPN insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of ASPN?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	526	0.000691%
Individual Insiders	1,200,655	1.58%
General Public	3,425,674	4.5%
Institutions	71,534,355	93.9%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 8.6%.

Top Shareholders

Top 25 shareholders own 75.96% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
16.1%	Spring Creek Capital, LLC	12,280,426	US$295.7m	-22.2%	37.88%
5.33%	BlackRock, Inc.	4,062,917	US$97.8m	0.2%	no data
4.75%	The Vanguard Group, Inc.	3,619,702	US$87.2m	5.11%	no data
4.39%	Oaktop Capital Management II, L.P.	3,340,525	US$80.4m	4.56%	8.06%
4.33%	Hood River Capital Management LLC	3,300,443	US$79.5m	12.2%	1.69%
4.16%	George Kaiser Family Foundation, Endowment Arm	3,167,322	US$76.3m	0%	13.11%
3.94%	Needham Investment Management, LLC	3,002,200	US$72.3m	1.17%	6.45%
3.12%	FMR LLC	2,377,753	US$57.3m	2.13%	no data
2.86%	Encompass Capital Advisors LLC	2,181,339	US$52.5m	7.59%	2.57%
2.72%	Frontier Capital Management Co LLC	2,072,789	US$49.9m	42.8%	0.43%
2.6%	AWM Investment Company Inc	1,977,839	US$47.6m	-7.85%	6.19%
2.18%	Samjo Management, LLC	1,657,775	US$39.9m	-27.2%	14.37%
2.17%	Columbia Management Investment Advisers, LLC	1,650,950	US$39.8m	-10.7%	0.01%
2.16%	Royce & Associates, LP	1,648,074	US$39.7m	-4.13%	0.33%
1.96%	Telemark Asset Management, LLC	1,492,424	US$35.9m	0%	3.28%
1.82%	State Street Global Advisors, Inc.	1,383,560	US$33.3m	7.67%	no data
1.55%	Geode Capital Management, LLC	1,182,026	US$28.5m	6.23%	no data
1.52%	Federated Hermes, Inc.	1,154,042	US$27.8m	0%	0.07%
1.49%	Dimensional Fund Advisors LP	1,133,710	US$27.3m	39%	no data
1.42%	UniSuper Management Pty Ltd	1,083,836	US$26.1m	0%	0.21%
1.23%	Driehaus Capital Management LLC	936,065	US$22.5m	-6.02%	0.16%
1.14%	Ardsley Advisory Partners LP	865,000	US$20.8m	-17.3%	2.9%
1.11%	Morgan Stanley, Investment Banking and Brokerage Investments	845,465	US$20.4m	120%	no data
1.01%	Voya Investment Management LLC	769,653	US$18.5m	3,670%	0.02%
0.87%	Mesirow Financial Investment Management, Inc.	665,438	US$16.0m	-15.6%	0.28%