Aspen Neuroscience ASPE Insider Ownership

NASDAQ ASPE

$13.82 +1.01 (+7.88%)

At close: Nov 11, 2026 · 4:00 PM EST

Insider Holdings by Owner

11.34Mn Shares

Advisors Llc Orbimed3.59Mn31.7%

Peter A. Thompson3.59Mn31.7%

Venture Fund X, L.P. Arch2.36Mn20.8%

Venture Partners Xiv, L.P. Arch1.20Mn10.6%

Faheem Hasnain348.33K3.1%

Other insiders (1)250.42K2.2%

Insider Ownership Statistics

as of 31 Dec, 2026

Insider Ownership

Shares Held by Insiders

filed for Dec 2026

Shares Outstanding

1.09Mn

1,094,550 shares

Direct Holdings

Indirect: 0

Net Open-Market Trades

+4.53Mn

net bought · $68.00Mn in Dec 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Open-Market Insider Trades

Bought Sold

Latest quarter —

Net over range —

Net-buying quarters —

Insider Ownership Summary

Updated Nov 5, 2026

Over the past 12 months, Aspen Neuroscience insiders bought $35 million of stock on the open market (2.33Mn shares) and made no open-market sales.

Counted by insider, open-market buying of ASPE stock in the past 12 months came from 3 insiders, with no insider selling.
Among Aspen Neuroscience's insiders, the largest open-market purchases in the past 12 months were by Arch Venture Partners XIV, L.P. (10% owner), totaling $18 million (1.2Mn shares), most recently on November 2, 2026.
Beyond open-market trades, insiders at Aspen Neuroscience acquired 5.3Mn shares through option exercises and conversions in the last 12 months.
Per Business Quant data, Aspen Neuroscience insiders hold 6.21Mn shares in total based on their latest Form 4 filings.
Aspen Neuroscience insiders hold 1.16Mn shares directly (18.70% of their total) and 5.05Mn shares (81.30%) indirectly, through entities such as trusts and partnerships.
The insider holdings in Aspen Neuroscience belong to 4 insiders who have reported on Form 4 within the past two years.
Aspen Neuroscience's three biggest insider holders are Peter A. Thompson (Director and 10% owner, 3.59Mn shares), Arch Venture Fund X, L.P. (10% owner, 2.36Mn shares) and Andrew Spaventa (Director, 250.41K shares), based on their latest Form 4 filings.
Peter A. Thompson holds 57.82% of the combined insider position in Aspen Neuroscience.
In the last 12 months, 6 Form 4 filings with transactions in ASPE stock came from 6 insiders.
These insider figures for Aspen Neuroscience are based on Form 4 filings through November 4, 2026.

Form 4 Holdings

Insiders Holding ASPE

Insiders 6

Shares held 11.34Mn

Of outstanding 1,035.87%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Advisors Llc Orbimed	Director, TenPercentOwner	0	3,589,132	3,589,132	31.7%	04 Nov, 2026
2	Peter A. Thompson	Director, TenPercentOwner	0	3,589,132	3,589,132	31.7%	04 Nov, 2026
3	Venture Fund X, L.P. Arch	TenPercentOwner	1,161,074	1,200,000	2,361,074	20.8%	02 Nov, 2026
4	Venture Partners Xiv, L.P. Arch	TenPercentOwner	1,200,000	0	1,200,000	10.6%	02 Nov, 2026
5	Faheem Hasnain	Executive Chair	348,330	0	348,330	3.1%	09 Nov, 2026
6	Andrew Spaventa	Director	0	250,415	250,415	2.2%	02 Nov, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

55 Insider Transactions

Source SEC Form 4

Latest quarter Dec 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
05 Nov, 2026	Faheem Hasnain	Executive Chair	Acquired A	321,672	$0.00	$0	348,330	Direct
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Acquired C	196,541	—	—	196,541	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Acquired C	196,541	—	—	196,541	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Acquired C	642,745	—	—	839,286	Indirect
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Acquired C	642,745	—	—	839,286	Indirect
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Acquired C	616,984	—	—	1,456,270	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Acquired C	616,984	—	—	1,456,270	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Acquired C	625,743	—	—	2,082,013	Indirect
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Acquired C	625,743	—	—	2,082,013	Indirect
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Acquired C	507,119	—	—	2,589,132	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Acquired C	507,119	—	—	2,589,132	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Acquired P	1,000,000	$15.00	$15.00Mn	3,589,132	Indirect
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Acquired P	1,000,000	$15.00	$15.00Mn	3,589,132	Indirect
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Disposed C	196,541	$0.00	$0	0	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Disposed C	196,541	$0.00	$0	0	Indirect
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Disposed C	642,745	$0.00	$0	0	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Disposed C	642,745	$0.00	$0	0	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Disposed C	616,984	$0.00	$0	0	Indirect
02 Nov, 2026	Peter A. Thompson	Director, TenPercentOwner	Disposed C	616,984	$0.00	$0	0	Indirect
02 Nov, 2026	Advisors Llc Orbimed	Director, TenPercentOwner	Disposed C	625,743	$0.00	$0	0	Indirect

Showing 1 to 20 of 55 transactions