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SC 13D/A ·Filed Oct 15, 2026

PBM

PSYENCE BIOMEDICAL LTD.
NEUTRAL
Impact 5/10
Horizonweeks Processed11d 15h ago SEC0001213900-26-109613
Activist stake amendment (position change)
Actionable Insight • Neutral

The standstill agreement effectively neutralizes Psyence Labs as an activist threat for the duration of the restricted period. Monitor whether the issuer exercises its option to invest US$5,000,000 in Psyence Labs, as referenced in the standstill carve-out, which could signal deepening strategic ties rather than confrontation.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+5d
PBM ▼ -4.63% at T+5d
NEUTRAL call -4.63% · α vs SPY -3.62% · entry $4.32 → $4.12
Next anchor: T+20d in 16d
Latest observation: T+6 -2.54% FF3 residual α
Entry = T+0 close
Oct 15, 2026
via day close
T+1d
-2.31%
call -2.31% · α -1.21%
$4.22
settled 11d ago
T+5d
-4.63%
call -4.63% · α -3.62%
$4.12
settled 5d ago
T+20d
Pending
in 16d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Psyence Labs Ltd. filed Amendment No. 1 to its Schedule 13D, reporting the acquisition of 1,497,500 common shares of Psyence Biomedical Ltd. on October 1, 2026, via a share-for-share swap agreement. This increased its beneficial ownership to 2,643,659 shares, representing approximately 49.75% of the outstanding common shares. The filing also details a standstill agreement that significantly restricts Psyence Labs from taking activist actions, including acquiring additional shares, soliciting proxies, or seeking board representation without issuer consent.

Key Financial Metrics

Stake
49.75%
Investor
Psyence Labs Ltd.

Key Facts

  • Psyence Labs acquired 1,497,500 common shares on October 1, 2026, via a share-for-share swap agreement with the issuer and a subsidiary.
  • The swap involved the issuer issuing shares at a deemed price of US$6.00 per share for aggregate non-cash consideration of US$8,985,000.
  • Following the acquisition, Psyence Labs beneficially owns 2,643,659 common shares, representing approximately 49.75% of the outstanding shares.
  • The swap agreement includes broad standstill restrictions prohibiting Psyence Labs from acquiring additional shares, soliciting proxies, seeking board representation, or initiating extraordinary transactions without issuer consent.
  • The filing amends the original Schedule 13D filed on June 3, 2026.

Financial Impact

Psyence Labs increased its stake to 49.75% via a non-cash share swap valued at US$8,985,000. The standstill agreement caps further activist escalation.

ownership percentagedilution

Risk Factors

  • The standstill restrictions limit Psyence Labs' ability to push for changes, reducing near-term activist pressure.
  • The 49.75% stake gives Psyence Labs significant influence but also subjects it to affiliate/control person resale restrictions.

Investment Themes

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
SC 13D/A Filing (Primary)0001213900-26-109613
Document: 0001213900-26-109613-index-headers.html0001213900-26-109613
Document: 0001213900-26-109613-index.html0001213900-26-109613
Document: 0001213900-26-109613.txt0001213900-26-109613
14 reports for PBM
Performance horizon
67% Hit rate @ T+1 2 of 3 directional calls Went positive at some point 2 of 3 best @ T+20▲ +28.37%Sep 23, 2026
Filters
Rows
Reports for PBM — sortable, filterable
TypeNow
Oct 21, 2026
5d ago
6-K
MIXED ★ 5/10
$4.52 $4.12▼ −8.85%▼ −7.67%$3.66 (−19.03%)
Oct 15, 2026
11d ago
SC 13D/A
NEUTRAL ★ 5/10
$4.32 $4.22▼ −2.31%▼ −1.21%$3.66 (−15.28%)
Oct 5, 2026
21d ago
SC 13G
NEUTRAL ★ 3/10
$5.08 $5.02▼ −1.18%▼ −1.73%$3.66 (−27.95%)
Oct 5, 2026
21d ago
6-K
NEUTRAL ★ 4/10
$5.08 $5.02▼ −1.18%▼ −1.73%$3.66 (−27.95%)
Oct 5, 2026
21d ago
Press Release
NEUTRAL ★ 4/10
$5.08 $5.02▼ −1.18%▼ −1.73%$3.66 (−27.95%)
Sep 28, 2026
28d ago
6-K
NEUTRAL ★ 4/10
$5.67 $5.43▼ −4.15%▼ −3.96%$3.66 (−35.39%)
Sep 28, 2026
28d ago
Press Release
NEUTRAL ★ 4/10
$5.67 $5.43▼ −4.15%▼ −3.96%$3.66 (−35.39%)
Sep 23, 2026
4w ago
6-K
BEARISH ★ 6/10
$6.31 $5.86▲ +7.13%▲ +7.05%$3.66 (+42.00%)
Sep 14, 2026
6w ago
6-K
NEUTRAL ★ 4/10
$6.00 $6.07▲ +1.17%▲ +1.63%$3.66 (−39.00%)
Sep 2, 2026
7w ago
EFFECT
NEUTRAL ★ 3/10
$4.37 $4.43▲ +1.37%▲ +0.33%$3.66 (−16.25%)
Showing 10 of 14

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Report published Oct 15, 2026