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SC 13D/A ·Filed Oct 22, 2026

SRZN

Surrozen, Inc./DE
NEUTRAL
Impact 4/10
Horizonweeks Processed4d ago SEC0001193125-26-429027
Activist stake amendment (position change)
Actionable Insight • Neutral

Monitor for any future 13D amendments that signal a change in the Column Group's intentions, such as board representation demands or strategic review requests. The private placement proceeds (~$95.1M gross) provide near-term cash runway, reducing immediate financing risk.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+1d
SRZN ▲ +7.06% at T+1d
NEUTRAL call +7.06% · α vs SPY +6.35% · entry $25.48 → $27.28
Next anchor: T+5d in 3d
Entry = T+0 close
Oct 22, 2026
via day close
T+1d
+7.06%
call +7.06% · α +6.35%
$27.28
settled 3d ago
T+5d
Pending
in 3d
T+20d
Pending
in 24d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

The Column Group entities filed Amendment No. 7 to their Schedule 13D on Surrozen, Inc., reporting a reduction in aggregate beneficial ownership from prior levels due to dilution from the company's October 20, 2026 private placement. The filing is a routine update reflecting the issuance of 6,043,321 new shares, which diluted the group's stake to 16.6% (from a higher prior percentage). No change in purpose or new activist demands were disclosed.

Key Financial Metrics

Stake
16.6%
Investor
The Column Group III GP, LP

Key Facts

  • The Column Group entities collectively beneficially own 3,824,612 shares (16.6% of 17,807,990 shares outstanding) as of October 20, 2026.
  • On October 20, 2026, TCG III LP, TCG III-A LP, and TCG Opportunity III LP purchased units in the private placement at $11.60 per unit, totaling ~$18.0 million.
  • The filing is a routine amendment to update ownership percentages due to dilution from the private placement; no new activist demands or changes in purpose.
  • Tim Kutzkey, a member of Surrozen's board, is a managing partner of the reporting entities.

Financial Impact

The Column Group invested approximately $18.0 million in the private placement at $11.60 per unit, but their percentage stake dropped from a higher prior level due to the 6,043,321 new shares issued.

ownership percentagedilution

Risk Factors

  • Further dilution from outstanding warrants (1,697,177 shares not exercisable within 60 days due to beneficial ownership limitations) could reduce the Column Group's stake further if exercised.
  • No stated activist demands — the group appears passive, reducing near-term catalyst potential.

Investment Themes

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
SC 13D/A Filing (Primary)0001193125-26-429027
Document: 0001193125-26-429027-index.html0001193125-26-429027
Document: 0001193125-26-429027.txt0001193125-26-429027
11 reports for SRZN
Performance horizon
67% Hit rate @ T+5 2 of 3 directional calls Went positive at some point 4 of 4 best @ T+60▲ +7.00%Mar 23, 2026
Filters
Rows
Reports for SRZN — sortable, filterable
TypeNow
Oct 22, 2026
4d ago
SC 13D/A
NEUTRAL ★ 4/10
$25.48awaiting T+5—$27.28 (+7.06%)
Oct 20, 2026
6d ago
8-K
BULLISH ★ 6/10
$25.32awaiting T+5—$27.28 (+7.74%)
Oct 20, 2026
6d ago
Press Release
MIXED ★ 6/10
$25.32awaiting T+5—$27.28 (+7.74%)
Oct 7, 2026
18d ago
SC 13G/A
NEUTRAL ★ 4/10
$27.97 $25.07▼ −10.37%▼ −10.09%$27.28 (−2.47%)
Oct 2, 2026
24d ago
8-K
BULLISH ★ 7/10
$29.32 $29.69▲ +1.26%▲ +0.10%$27.28 (−6.96%)
Oct 2, 2026
24d ago
Press Release
BULLISH ★ 6/10
$29.32 $29.69▲ +1.26%▲ +0.10%$27.28 (−6.96%)
Oct 1, 2026
25d ago
SC 13G
NEUTRAL ★ 4/10
$29.32 $29.69▲ +1.26%▲ +0.10%$27.28 (−6.96%)
Aug 7, 2026
11w ago
25-NSE
NEUTRAL ★ 3/10
$25.09 $23.78▼ −5.22%▼ −5.17%$27.28 (+8.73%)
May 4, 2026
25w ago
Insider Cluster
NEUTRAL ★ 2/10
$32.07 $29.28▼ −8.70%▼ −11.64%$27.28 (−14.94%)
Mar 23, 2026
30w ago
S-3
BEARISH ★ 7/10
$25.00 $29.13▼ −16.52%▼ −16.94%$27.28 (−9.12%)
Showing 10 of 11

US Market Status

Market Closed — Opens Tue (16h 6m)

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Report published Oct 22, 2026