ZLAB CLUSTER SEC Filing Analysis

Latest settled — T+5d ⚠ clustered

ZLAB ▼ -0.64% at T+5d

SHORT call ✓ call won +0.64% · α vs SPY +1.88% · entry $18.81 → $18.69

Next anchor: T+20d in 7d

Currently $16.65 · +11.48% from $18.81 entry (call sign-flipped)

Entry anchored
May 19, 03:59 PM ET
via Databento tick

T+1d

+1.54%

call -1.54% · α -1.35%

$19.10

settled 21d ago

T+5d

-0.64%

call +0.64% · α +1.88%

$18.69

settled 14d ago

T+20d

—

call — · α —

—

in 7d

T+60d

—

call — · α —

—

in 2mo

Price Chart

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Executive Summary

CEO Du Ying sold $3.3M worth of ZLAB shares over a 5-day window, primarily through same-day option exercises and open-market sales, following a weak Q1 2026 earnings report (revenue down 6% YoY, net loss widened to $51M). The CLO also sold $71K. The cluster is 100% selling by the two most senior insiders, occurring 12 days after a bearish earnings release, which amplifies the negative signal.

Key Financial Metrics

Direction

selling

Total Value

$3.4M

Insiders

2

Actionable Insight

CEO selling $3.3M immediately after a weak earnings report is a strong negative signal. The cluster is 100% selling by the two most senior insiders, with no buys to offset. Monitor for further insider sales and any guidance updates. The stock may face continued selling pressure near-term.

Key Facts

CEO Du Ying sold 216,231 shares for ~$3.3M in open-market sales over May 13-18, 2026.
CLO Edmondson Frazor Titus III sold 3,517 shares for ~$71K on May 14, 2026.
All CEO sales were same-day exercises of stock options (exercise prices $0 and $1.74), netting zero cost basis.
Cluster occurred 12 days after Q1 2026 earnings: revenue $99.6M (-6% YoY), product revenue $95.6M (-10% YoY), net loss $51.0M.
Total insider selling of ~$3.37M represents ~0.16% of ZLAB's $2.1B market cap.
Cross-filing context shows cluster-insider-trades + cluster-earnings-context is an AMPLIFIER (PMI=2.50, q=0.000).

Financial Impact

CEO sold ~$3.3M, CLO sold ~$71K, total ~$3.37M (0.16% of market cap).

insider ownershipmarket sentiment

Risk Factors

Further insider selling could signal deteriorating fundamentals.
ZEJULA generic competition and widening losses may pressure the stock.
No insider buying to provide a bullish counter-signal.

Market Snapshot

Exchange

Nasdaq

Sector

Pharmaceutical Preparations

Analyst Consensus

79% bullish (14 analysts)

Documents Analyzed

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

Document	Accession Number
CLUSTER Data (Synthetic)	cluster-ZLAB-1779221970472

13 reports for ZLAB

T+1T+5T+20T+60

Track record builds as more directional reports settle.

Filters

Reports for ZLAB — sortable, filterable
	Type				Now
May 21, 2026 19d ago	8-K NEUTRAL ★ 4/10	$18.61 $17.09	▼ −8.17%	▼ −9.83%	$16.65 (−10.53%)
May 19, 2026 21d ago	Insider Cluster NEUTRAL ★ 3/10	$18.81 $18.69	▼ −0.64%	▼ −1.88%	$16.65 (−11.48%)
May 19, 2026 21d ago	Insider Cluster BEARISH ★ 6/10	$18.81 $18.69	▲ +0.64%	▲ +1.88%	$16.65 (+11.48%)
May 7, 2026 4w ago	8-K BEARISH ★ 6/10	$19.77 $20.47	▼ −3.57%	▼ −2.06%	$16.65 (+15.76%)
Apr 28, 2026 6w ago	DEFA14A NEUTRAL ★ 2/10	$22.14 $20.98	▼ −5.24%	▼ −6.93%	$16.65 (−24.80%)
Apr 6, 2026 9w ago	144 NEUTRAL ★ 3/10	$20.50 $21.34	▲ +4.10%	▼ −0.04%	$16.65 (−18.78%)
Apr 6, 2026 9w ago	144 NEUTRAL ★ 3/10	$20.50 $21.34	▲ +4.10%	▼ −0.04%	$16.65 (−18.78%)
Mar 11, 2026 13w ago	Insider Cluster BEARISH ★ 5/10	$19.47 awaiting T+5	awaiting T+5	—	$16.65 (+14.46%)
Mar 5, 2026 13w ago	Insider Cluster NEUTRAL ★ 4/10	$19.30 awaiting T+5	awaiting T+5	—	$16.65 (−13.73%)
Mar 3, 2026 14w ago	Insider Cluster NEUTRAL ★ 3/10	$18.45 awaiting T+5	awaiting T+5	—	$16.65 (−9.76%)

US Market Status

Market Closed — Opens Thu (10h 32m)

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