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Insider Cluster (7 insiders) ·Filed Mar 6, 2026

SERA

SERA PROGNOSTICS, INC.
NEUTRAL
Impact 3/10
Horizondays Processed7mo ago
Insider cluster: 7 insiders, $0.0M total
Actionable Insight • Neutral

The selling is routine in size and likely related to personal tax or diversification planning, especially following equity grants. Monitor for any pattern of increasing sales or news ahead of next earnings. No immediate red flag, but continued C-suite selling could erode confidence.

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
SERA ▲ +12.31% at T+60d
NEUTRAL call +12.31% · α vs SPY -0.47% · entry $1.95 → $2.19
Entry = T+0 close
Mar 5, 2026
via day close
T+1d
-1.03%
call -1.03% · α -1.87%
$1.93
settled 8mo ago
T+5d
+9.23%
call +9.23% · α +10.76%
$2.13
settled 8mo ago
T+20d
+17.95%
call +17.95% · α +19.99%
$2.30
settled 7mo ago
T+60d
+12.31%
call +12.31% · α -0.47%
$2.19
settled 5mo ago

Price Chart

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Executive Summary

Seven executives at Serac Prognostics sold shares in the past week, including the CEO and CFO, realizing a total of $66,299 in open-market sales. These sales were offset by non-cash stock grants to two C-suite executives totaling 144,530 shares. The net activity is selling, with minimal dollar volume relative to the company's $77M market cap.

Key Financial Metrics

Direction
selling
Total Value
$66.3K
Insiders
7

Key Facts

  • CEO Lindgardt Zhenya sold 25,612 shares for $49,079 (combined transactions at $1.90 and $2.04).
  • CFO Aerts Austin sold 7,088 shares for $13,610 and was granted 112,765 shares in non-cash awards.
  • Five other C-suite executives sold small blocks totaling $13,610.
  • Total open-market sales by insiders: $66,299 over 7 days.
  • All stock grants (A-coded transactions) are non-cash awards worth $0 in immediate economic value.
  • Total insider sales represent just 0.086% of the company's $77M market cap — well below the 0.1% threshold for materiality.

Financial Impact

$66,299 in total open-market sales by insiders, representing 0.086% of market cap

insider ownershipmarket sentiment

Risk Factors

  • Perception risk if media or retail investors misinterpret small-scale selling as negative signal.
  • Potential for increased scrutiny if selling continues ahead of a catalyst or earnings release.

Market Snapshot

Exchange
Nasdaq

Investment Themes

Healthcare & Medical Devices

Documents Analyzed

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

DocumentAccession Number
CONTEXT: Insider Cluster Data (13 trades, 7d window)cluster-SERA-1773440871932
11 reports for SERA
Performance horizon

Track record builds as more directional reports settle.

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 5h 5m

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Report published Mar 13, 2026