Insider Cluster (4 insiders) ·Filed Feb 24, 2026

CRBU

Caribou Biosciences, Inc.
NEUTRAL
Impact 4/10
Horizondays Processed7mo ago
Actionable Insight • Neutral

Monitor for continued insider selling patterns and upcoming earnings or clinical trial updates; no immediate red flag, but sustained selling could signal muted confidence if not explained by 10b5-1 plans.

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
CRBU ▼ -7.94% at T+60d
NEUTRAL call ✗ call lost -7.94% · α vs SPY -14.69% · entry $2.14 → $1.97
Entry anchored
Feb 23, 03:59 PM ET
via exchange tick
T+1d
-8.88%
call -8.88% · α -9.71%
$1.95
settled 7mo ago
T+5d
-17.76%
call -17.76% · α -16.73%
$1.76
settled 7mo ago
T+20d
-14.95%
call -14.95% · α -9.97%
$1.82
settled 6mo ago
T+60d
-7.94%
call -7.94% · α -14.69%
$1.97
settled 5mo ago

Price Chart

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Executive Summary

Multiple C-suite executives at Caribou Biosciences (CRBU) sold shares in a coordinated cluster over a 7-day window, totaling approximately $35,500 in sales. On the same dates, these insiders also received substantial stock awards (totaling hundreds of thousands of shares), indicating the sales were part of pre-arranged 10b5-1 plans or compensation-related exercises. The activity aligns with recent insider selling trends and appears routine rather than reactive to material non-public information.

Key Financial Metrics

Direction
selling
Total Value
$35.5K
Insiders
4

Key Facts

  • Four C-suite executives sold shares on February 24, 2026, at $1.96 per share, totaling $35,454.44 in aggregate.
  • On February 20, 2026, the same executives received stock awards ranging from 45,000 to 55,000 shares, valued at zero because they are newly granted.
  • The sales are likely part of pre-scheduled 10b5-1 plans or option exercises tied to compensation, not discretionary market timing.
  • Total value of insider sales in the last 30 days is $35K, consistent with this cluster.
  • No open-market buying activity observed in the cluster.

Financial Impact

$35,454 in insider sales; offset by $0 cost basis in awards received

insider ownershipshare countdilution

Risk Factors

  • Perception of insider pessimism if sales are not clearly tied to pre-arranged plans.
  • Potential dilution from large stock awards if not offset by performance-based vesting.

Market Snapshot

Exchange
Nasdaq

Investment Themes

Biotech & Drug Discovery

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CONTEXT: Insider Cluster Data (8 trades, 7d window)cluster-CRBU-1771984517304
10 reports for CRBU
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for CRBU — sortable, filterable
TypeNow
Jun 11, 2026
16w ago
8-K
BULLISH ★ 6/10
$1.66 $1.94▲ +16.87%▲ +14.98%$1.23 (−25.90%)
Jun 11, 2026
16w ago
Press Release
BULLISH ★ 7/10
$1.66 $1.94▲ +16.87%▲ +14.98%$1.23 (−25.90%)
Jun 5, 2026
16w ago
DEFA14A
NEUTRAL ★ 2/10
$1.84 $1.83▼ −0.54%▼ −2.17%$1.23 (−33.15%)
Apr 24, 2026
22w ago
DEFA14A
NEUTRAL ★ 3/10
$2.13 $2.16▲ +1.41%▼ −3.55%$1.23 (−42.25%)
Mar 5, 2026
30w ago
8-K
MIXED ★ 5/10
$1.82 $1.95▲ +7.14%▲ +9.19%$1.23 (−32.42%)
Mar 5, 2026
30w ago
Press Release
MIXED ★ 6/10
$1.82 $1.95▲ +7.14%▲ +9.19%$1.23 (−32.42%)
Feb 28, 2026
30w ago
Institutional Cluster
NEUTRAL ★ 5/10
$1.84 $1.72▼ −6.52%▲ +1.42%$1.23 (−33.15%)
Feb 24, 2026
31w ago
Insider Cluster
NEUTRAL ★ 3/10
$2.14 $1.82▼ −14.95%▼ −9.97%$1.23 (−42.52%)
Feb 24, 2026
31w ago
Insider Cluster
NEUTRAL ★ 4/10
$2.14 $1.82▼ −14.95%▼ −9.97%$1.23 (−42.52%)
Feb 24, 2026
31w ago
Insider Cluster
NEUTRAL ★ 3/10
$2.14 $1.82▼ −14.95%▼ −9.97%$1.23 (−42.52%)
Showing 10 of 10

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Report published Feb 25, 2026