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Insider Cluster (6 insiders) ·Filed Jun 15, 2026

SERA

SERA PROGNOSTICS, INC.
BEARISH
Impact 5/10
Horizonweeks Processed4mo ago
Insider cluster: 5 insiders, $0.1M total
Actionable Insight ▼ Bearish

The entire C-suite and senior management are selling concurrently, which is an unusually broad sell-side cluster. While the absolute dollar amounts are modest relative to market cap, the breadth and involvement of the CEO/CFO/CCO/GC suggest a coordinated reduction. Monitor for an upcoming negative catalyst — the next quarterly filing or news item could disappoint. Short-term traders may consider caution or hedging given the uniform insider selling signal.

DirectionBearish
Confidencemedium
Horizonweeks
Final — all horizons settled through T+60d
SERA ▲ +10.22% at T+60d
SHORT call ✗ call lost -10.22% · α vs SPY -9.22% · entry $1.86 → $2.05
Entry = T+0 close
Jun 15, 2026
via day close
T+1d
+1.61%
call -1.61% · α -2.86%
$1.89
settled 4mo ago
T+5d
-1.08%
call +1.08% · α -1.16%
$1.84
settled 4mo ago
T+20d
+6.45%
call -6.45% · α -6.25%
$1.98
settled 3mo ago
T+60d
+10.22%
call -10.22% · α -9.22%
$2.05
settled 7w ago

Price Chart

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Executive Summary

Five insiders at SERA PROGNOSTICS, including the CEO, CFO, CCO, General Counsel, and a director, sold a total of ~$87K worth of shares over a 7-day window ending June 11. The CEO alone accounted for ~$57K of the sales. Total insider selling represents approximately 0.12% of the $73M market cap, which is a modest magnitude. The cluster includes the entire C-suite and senior management selling within a tight window, which elevates the signal.

Key Financial Metrics

Direction
selling
Total Value
$87.0K
Insiders
6

Key Facts

  • CEO Zhenya Lindgardt sold 27,745 shares total ($57,220) on June 9 and June 11.
  • CFO Austin Aerts sold 7,477 shares total ($15,409) on June 9 and June 11.
  • CCO Dyaarl Lee Anderson sold 4,739 shares ($9,525) on June 11.
  • General Counsel Benjamin Jackson sold 2,179 shares ($4,380) on June 11.
  • Director Sandra AJ Lawrence sold 1,600 shares ($3,440) on June 8.
  • CMO Tiffany Inglis sold 362 shares ($728) on June 11 (in cross-filing context).
  • Total insider sales cluster value ~$87K, representing about 0.12% of the $73M market cap.
  • Prior 30-day insider activity showed 8 sells totaling $91K — this cluster is a continuation of that trend.

Financial Impact

Total insider selling of ~$87K, or ~0.12% of $73M market cap.

dilutioninsider sentiment

Risk Factors

  • Potential undisclosed negative catalyst (poor earnings, regulatory setback, dilutive financing).
  • Continuation of selling pressure if more insiders follow or the pattern accelerates.
  • Liquidity risk — market cap of $73M, daily volume may be thin.

Market Snapshot

Exchange
Nasdaq
Sector
Services-Medical Laboratories
Analyst Consensus
89% bullish (9 analysts)

Investment Themes

Healthcare & Medical Devices

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-SERA-1781554117656
11 reports for SERA
Performance horizon
Filters
Rows
Reports for SERA — sortable, filterable
TypeNow
Oct 21, 2026
5d ago
Press Release
NEUTRAL ★ 1/10
$2.04awaiting T+60—$2.04 (−0.00%)
Oct 13, 2026
13d ago
144
NEUTRAL ★ 2/10
$2.07awaiting T+60—$2.04 (−1.45%)
Aug 19, 2026
9w ago
8-K
NEUTRAL ★ 3/10
$2.10awaiting T+60—$2.04 (−2.86%)
Jun 30, 2026
16w ago
8-K
NEUTRAL ★ 2/10
$2.03 $2.11▲ +3.94%▲ +0.98%$2.04 (+0.49%)
Jun 15, 2026
19w ago
Insider Cluster
BEARISH ★ 5/10
$1.86 $2.05▼ −10.22%▼ −9.22%$2.04 (−9.68%)
Jun 8, 2026
20w ago
144
NEUTRAL ★ 2/10
$2.13 $2.01▼ −5.63%▼ −9.45%$2.04 (−4.23%)
Jun 1, 2026
21w ago
8-K
NEUTRAL ★ 2/10
$2.04 $2.09▲ +2.45%▲ +1.33%$2.04 (−0.00%)
Apr 24, 2026
26w ago
DEFA14A
NEUTRAL ★ 2/10
$2.00 $2.08▲ +4.00%▼ −0.78%$2.04 (+2.00%)
Mar 6, 2026
33w ago
Insider Cluster
NEUTRAL ★ 3/10
$1.95 $2.19▲ +12.31%▼ −0.47%$2.04 (+4.62%)
Mar 6, 2026
33w ago
Insider Cluster
NEUTRAL ★ 3/10
$1.95 $2.19▲ +12.31%▼ −0.47%$2.04 (+4.62%)
Showing 10 of 11

US Market Status

Market Closed — Opens in 3h 17m

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Report published Jun 15, 2026