Comparable stake leader
Psyence Labs Ltd
SEC ownership of PSYENCE BIOMEDICAL LTD.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001985062.
Disclosed value leader
Psyence Labs Ltd
Comparable rows
5/25
Latest evidence
31 Mar 2026
- Public ticker
- PBM, PBMWW on Nasdaq
- Parsed ownership sources
- 13D/G and 13F
- Largest SEC-reported holder
- Psyence Labs Ltd
- Latest 13D/G holder
- Psyence Labs Ltd
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0001985062
- Issuer location
- Toronto
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of PSYENCE BIOMEDICAL LTD. (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
Psyence Labs Ltd
Disclosed value leader
Psyence Labs Ltd
Comparable rows
5/25
Latest evidence
31 Mar 2026
13D/G
13F
Lead comparable stake: 30%
20 rows are not safely comparable across share classes.
13D/G row: Psyence Labs Ltd
Showing 1-8 of 25 holder rows.
Quick read
Psyence Labs Ltd leads the comparable SEC ownership view at 30%.
5 of 25 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 Psyence Labs Ltd's linked filing trail.
Comparable ownership
Top 5
Psyence Labs Ltd
30%
Weiner Jeffrey David
5.1%
Hudson Bay Capital Management LP
5%
Kaos Capital Ltd
4.9%
AdvisorShares Trust
0.79%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 25 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Psyence Labs Ltd |
13D/G
|
30%
|
$825,234
1,146,159 shares
|
$0 | 25 Feb 2026 |
| Weiner Jeffrey David |
13D/G
|
5.1%
|
$37,332
51,850 shares
|
$0 | 13 Feb 2026 |
| Hudson Bay Capital Management LP |
13D/G
|
5%
|
$133,150
237,768 shares
|
-$79,650 | 31 Mar 2025 |
| Kaos Capital Ltd |
13D/G
|
4.9%
|
$236,098
313,876 shares
|
$0 | 08 Jan 2026 |
| AdvisorShares Trust |
13D/G
|
0.79%
|
$15,077
26,924 shares
|
$0 | 31 Dec 2024 |
| Parallel Advisors, LLC |
13F
Company
|
—
mixed-class rows
|
$575,250
178,750 shares
mixed-class rows
|
— | 31 Mar 2026 |
| Harraden Circle Investments, LLC |
13F
Company
|
—
class O/S missing
|
$20,929
1,150,000 shares
|
— | 31 Mar 2026 |
| Polar Asset Management Partners Inc. |
13F
Company
|
—
class O/S missing
|
$13,341
733,000 shares
|
— | 31 Mar 2026 |
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.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 06 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Recent insider transactions for PSYENCE BIOMEDICAL LTD.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.