Aspen Neuroscience (ASPE): 10% owner bought ~$18M

~$18M

Approx. value · 1.2M sh @ $15.00

1.2M

Holds after · shares reported

Traded

Nov 2, 2026

Filed

Nov 3, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Nov 2, 2026 · this disclosureInsider10% owner purchased ~$18M of ASPE shares in the open market

What came next

1. Nov 2, 2026Company filing · Form 8-K · Bylaws or charter, Other newsChanged its bylaws, charter or fiscal year, and reported other company news
2. Nov 2, 2026Insider · 4 peopleInsiders: 5 purchases (~$50.0M)
3. Nov 3, 20265% stakeQatar Investment Authority reported a passive stake (13G) of 6.7%
4. Nov 6, 20265% stakeFMR LLC reported a passive stake (13G) of 11.2%
5. Nov 6, 20265% stakeGILEAD SCIENCES, INC. reported a passive stake (13G) of 9.9%
6. Nov 6, 20265% stakeORBIMED ADVISORS LLC filed an activist stake (13D) of 12.3%
7. Nov 9, 20265% stakeFrazier Life Sciences X, L.P. reported a passive stake (13G) of 5.8%
8. Nov 9, 20265% stakeARCH Venture Fund X, L.P. filed an activist stake (13D) of 12.9%

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Aspen Neuroscience

For Aspen Neuroscience, OQRO holds 6 insider filings (SEC Form 4 or Form 144) and 6 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ASPE page.

Other recent filings by ARCH Venture Fund X, L.P., 10% owner

• SEC Form 4 at Aspen Neuroscience (ASPE)Nov 3, 2026
• SEC Form 4 at Aspen Neuroscience (ASPE)Nov 3, 2026

The full history of ARCH Venture Fund X, L.P., 10% owner is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Aspen Neuroscience

• SEC Schedule 13DNov 9, 2026
• SEC Schedule 13GNov 9, 2026
• SEC Schedule 13GNov 6, 2026
• SEC Schedule 13GNov 6, 2026
• SEC Schedule 13DNov 6, 2026
• SEC Form 4Nov 4, 2026

Everything OQRO holds on this company is on its ASPE page.