BSX CLUSTER SEC Filing Analysis

Latest settled — T+5d ⚠ clustered

BSX ▼ -16.96% at T+5d

NEUTRAL call ✗ call lost -16.96% · α vs SPY -18.62% · entry $57.71 → $47.92

Next anchor: T+20d in 9d

Currently $46.91 · -18.71% from $57.71 entry

Entry anchored
May 21, 2026
via day open

T+1d

-0.15%

call -0.15% · α -0.74%

$57.62

settled 22d ago

T+5d

-16.96%

call -16.96% · α -18.62%

$47.92

settled 15d ago

T+20d

—

call — · α —

—

in 9d

T+60d

—

call — · α —

—

in 2mo

Price Chart

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Executive Summary

Three directors purchased ~$554K of BSX stock in open-market transactions over two days. While a cluster of insider buying is generally a bullish signal, the absolute dollar amount is only ~0.0007% of BSX's $84.2B market cap, rendering it economically trivial. Historical calibration data for this ticker shows past reports have produced negative T+20 outcomes and the calibration cell for this impact level has a low observed probability of up-moves, suggesting this cluster is noise rather than a meaningful signal.

Key Financial Metrics

Direction

buying

Total Value

$554.0K

Insiders

3

Actionable Insight

Ignore this cluster. The dollar value is immaterial relative to company size, no C-suite participation, and historical model reads on BSX have been net negative at T+20. No directional trading signal.

Key Facts

Three directors (Ludwig, Pegus, Habiger) purchased shares on May 19-20, 2026.
Total open-market purchase value: ~$554K across 4 trades.
Market cap: $84.2B — purchases represent ~0.0007% of market cap, well below the 0.1% materiality threshold.
No C-suite executives participated; all buyers are independent directors.
All trades were open-market (code P) — no 10b5-1 plans noted.
Historical calibration for this ticker shows past reports have significantly underperformed; model score-6/7 cells on BSX have sub-35% up-move probability at T+20.

Financial Impact

Approximately $554K in aggregate insider purchases against an $84.2B market cap — economically insignificant.

buybacksinsider ownership

Risk Factors

Past model performance on BSX is poor — do not extrapolate from historical calibration to current filing.
Director purchases this small are likely personal allocation decisions, not informed trading.

Market Snapshot

Exchange

NYSE

Sector

Surgical & Medical Instruments & Apparatus

Analyst Consensus

88% bullish (41 analysts)

Documents Analyzed

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

Document	Accession Number
CLUSTER Data (Synthetic)	cluster-BSX-1779398497301

5 reports for BSX

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

Track record builds as more directional reports settle.

Filters

Reports for BSX — sortable, filterable
	Type				Now
May 21, 2026 22d ago	Insider Cluster NEUTRAL ★ 3/10	$57.71 $47.92	▼ −16.96%	▼ −18.62%	$46.91 (−18.71%)
May 18, 2026 26d ago	8-K NEUTRAL ★ 4/10	$55.89 $57.62	▲ +3.10%	▲ +1.48%	$46.91 (−16.06%)
May 18, 2026 26d ago	8-K BULLISH ★ 7/10	$55.89 $57.62	▲ +3.10%	▲ +1.48%	$46.91 (−16.06%)
Mar 18, 2026 12w ago	DEFA14A NEUTRAL ★ 3/10	$69.88 $70.14	▲ +0.37%	▲ +2.58%	$46.91 (−32.87%)
Feb 28, 2026 15w ago	Institutional Cluster BULLISH ★ 7/10	$76.13 $71.89	▼ −5.57%	▼ −4.36%	$46.91 (−38.38%)

US Market Status

Market Closed — Opens Mon (47h 37m)

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