EQ Equillium, Inc.
Price Chart
Executive Summary
Two Equillium insiders (COO and Principal Accounting Officer) sold a combined $342K in open-market sales on May 28, 2026, following the exercise of stock options. The sales represent ~0.19% of the company's $180M market cap — a modest amount. While the cluster includes multiple insiders, the dollar value is proportional to routine option-exercise-and-sell patterns, and the sales coincide with a common vesting/expiration window, reducing their informational signal. The historical calibration shows cluster sells at this score level have a net negative expected alpha, but the cross-filing actuarial verdicts flag this as an amplified context, warranting a slightly elevated impact score.
Key Financial Metrics
Actionable Insight
The sales are routine option-exercise-and-sell transactions, not a bearish signal. Monitor for any upcoming corporate event (earnings, pipeline update) that could have prompted the exercise timing. The cross-filing amplifiers suggest this cluster may be more informative than standalone — watch for additional insider activity in the next 30 days.
Key Facts
- COO Christine Zedelmayer sold 55,604 shares at $2.70 for $150,131 on May 28, 2026.
- Principal Accounting Officer Tom Penny sold 65,000 shares at $2.95 for $191,750 on May 28, 2026.
- Both sales followed same-day option exercises (non-cash derivative conversions).
- Total open-market sales of $341,881 represent ~0.19% of EQ's $180M market cap.
- Four directors received non-cash stock grants of 70,000 shares each on May 28, 2026 — no economic signal.
- The cluster is concentrated on a single day (May 28) with no prior 7-day insider buying.
- EQ has 88% analyst bullish rating (7 Strong Buy, 7 Buy, 2 Hold).
Financial Impact
Total insider sales of $342K, or 0.19% of market cap — below the 0.5% threshold for materiality.
Risk Factors
- Further insider selling could emerge if the stock appreciates, given the pattern of option exercises.
- The company is a pre-revenue biotech — any pipeline setback could amplify the negative signal of insider sales.
- Historical calibration shows cluster sells at this score level have a net negative expected alpha (-2.79% segment average).
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-EQ-1780093752163 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 5, 2026
4d ago
|
Insider Cluster
| $3.12 awaiting T+5 | awaiting T+5 | — | $2.77 (+11.22%) |
|
May 29, 2026
11d ago
|
Insider Cluster
| $3.08 $2.94 | ▼ −4.55% | ▼ −1.80% | $2.77 (−10.06%) |
|
May 20, 2026
20d ago
|
Press Release
| $2.21 $2.84 | ▲ +28.51% | ▲ +26.91% | $2.77 (+25.34%) |
|
Apr 17, 2026
7w ago
|
EFFECT
| $2.05 $2.16 | ▲ +5.37% | ▲ +4.81% | $2.77 (+35.12%) |
|
Apr 15, 2026
7w ago
|
DEFA14A
| $2.05 $2.33 | ▲ +13.66% | ▲ +12.02% | $2.77 (+35.12%) |
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Apr 7, 2026
9w ago
|
S-3
| $1.80 $2.05 | ▲ +13.89% | ▲ +10.37% | $2.77 (+53.89%) |
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Mar 25, 2026
10w ago
|
Press Release
| $2.06 $1.97 | ▲ +4.37% | ▲ +6.00% | $2.77 (−34.47%) |
US Market Status
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