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SC 13G/A ·Filed Oct 8, 2026

CUE

Cue Biopharma, Inc.
NEUTRAL
Impact 4/10
Horizonweeks Processed19d 3h ago SEC0001213900-26-107721
Passive stake amendment
Actionable Insight • Neutral

The Strome group's warrant exercises and blocker increase signal incremental conviction but remain within a passive framework. Monitor for any future conversion to a 13D filing, which would indicate activist intent.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+5d
CUE ▼ -16.39% at T+5d
NEUTRAL call -16.39% · α vs SPY -16.11% · entry $22.33 → $18.67
Next anchor: T+20d in 9d
Latest observation: T+11 -15.61% FF3 residual α
Entry = T+0 close
Oct 8, 2026
via day close
T+1d
+23.87%
call +23.87% · α +23.27%
$27.66
settled 18d ago
T+5d
-16.39%
call -16.39% · α -16.11%
$18.67
settled 12d ago
T+20d
Pending
in 9d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Mark E. Strome and affiliated entities filed an amended Schedule 13G disclosing aggregate beneficial ownership of 644,916 shares (8.50%) of Cue Biopharma as of October 8, 2026. The filing details partial warrant exercises by Strome Mezzanine Fund II in July–August 2026 and an increase in the warrant exercise blocker from 5% to 8.5%, reflecting active position management but no change in passive intent.

Key Financial Metrics

Stake
8.5%
Investor
Mark E. Strome

Key Facts

  • Mark E. Strome and affiliates collectively own 8.50% of Cue Biopharma common stock as of October 8, 2026.
  • Strome Mezzanine Fund II partially exercised warrants for 99,997 shares on July 14, 2026, 99,996 shares on August 5, 2026, and 99,996 shares on August 27, 2026.
  • The warrant blocker was adjusted from 5% to 8.5% effective August 15, 2026, allowing additional exercise capacity.
  • Remaining exercisable warrants cover 222,839 shares as of the filing date.
  • The filing is an amendment to a prior Schedule 13G and certifies passive investment intent under Rule 13d-1(c).

Financial Impact

No direct financial impact; the filing updates beneficial ownership disclosure following warrant exercises and blocker adjustment.

Risk Factors

  • Warrant overhang: remaining 222,839 exercisable shares could add ~3% dilution upon exercise.
  • Passive certification limits the group's ability to engage in activist activities without converting to a 13D.

Investment Themes

Documents Analyzed

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

DocumentAccession Number
SC 13G/A Filing (Primary)0001213900-26-107721
Document: 0001213900-26-107721-index-headers.html0001213900-26-107721
Document: 0001213900-26-107721-index.html0001213900-26-107721
Document: 0001213900-26-107721.txt0001213900-26-107721
25 reports for CUE
Performance horizon
69% Hit rate @ T+1 9 of 13 directional calls Went positive at some point 10 of 13 best @ T+20▲ +519.50%Apr 7, 2026
Filters
Rows
Reports for CUE — sortable, filterable
TypeNow
Oct 14, 2026
12d ago
Insider Cluster
BEARISH ★ 4/10
$18.67 $16.71▲ +10.50%▲ +9.39%$18.11 (+2.97%)
Oct 13, 2026
13d ago
144
NEUTRAL ★ 2/10
$18.60 $18.67▲ +0.38%▲ +0.09%$18.11 (−2.61%)
Oct 8, 2026
19d ago
SC 13G/A
NEUTRAL ★ 4/10
$22.33 $27.66▲ +23.87%▲ +23.27%$18.11 (−18.88%)
Sep 21, 2026
5w ago
8-K
BULLISH ★ 7/10
$28.27 $30.90▲ +9.30%▲ +9.32%$18.11 (−35.92%)
Sep 20, 2026
5w ago
Press Release
BULLISH ★ 7/10
$28.27 $30.90▲ +9.30%▲ +9.32%$18.11 (−35.92%)
Aug 21, 2026
9w ago
EFFECT
BEARISH ★ 6/10
$23.98 $23.18▲ +3.34%▲ +3.04%$18.11 (+24.46%)
Aug 17, 2026
10w ago
Insider Cluster
BEARISH ★ 6/10
$25.70 $26.28▼ −2.26%▼ −2.05%$18.11 (+29.51%)
Aug 14, 2026
10w ago
Press Release
NEUTRAL ★ 4/10
$27.64 $25.70▼ −7.02%▼ −6.34%$18.11 (−34.46%)
Aug 13, 2026
10w ago
144
NEUTRAL ★ 2/10
$34.20 $27.64▼ −19.18%▼ −18.71%$18.11 (−47.03%)
Jul 9, 2026
15w ago
Press Release
BULLISH ★ 6/10
$36.78 $30.92▼ −15.93%▼ −15.17%$18.11 (−50.75%)
Showing 10 of 25

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Report published Oct 8, 2026