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BSXNet buying

Insider activity on BSX over the last 12 months.

Open-market buys
$9.8M
Open-market sells
Distinct insiders
4
Filings (12mo)
16
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Price & insider trades

Where insiders bought and sold against BSX's price — tap a bubble for the P&L since.

Insider buyInsider sellClose · 12mo · $49.42 now
Tap a bubble to see the insider's P&L since they traded.

Graded signals

AI-scored insider events on BSX — tap any signal for the full read.

BULLISH
BSX CEO Mahoney Makes First-Ever $9M Buy After Years of Selling
16d ago

CEO Michael Mahoney bought $9M worth of BSX at $48.33, establishing his first-ever long position after executing seven prior sales totaling over $100M. This is a highly significant reversal from a serial seller to a major buyer, signaling a potential inflection point in his view of the company's value. Bull: strong analyst consensus and a 17% discount to recent highs → target $58; bear: breaks $42 support.

Where it could go — Our 7-8 conviction officer buys: 61% beat SPY at 30d; bull holds $48, bear breaks $42.

Conviction 8/10HIGH importance75% confidence
BULLISH
BSX Director Ludwig buys $227K near 90-day low, stake +19.7%
18d ago

Director Edward Ludwig bought $227K worth of BSX shares at $45.48, increasing his stake by 19.7% while the stock traded 22.3% below its 90-day high. This second consecutive purchase suggests confidence near lows, though recent similar signals have underperformed with no supporting cluster.

Where it could go — Our 5-6 conviction director buys: 65% beat SPY at 30d; watch $42.20 as support, $47.16 as resistance.

Conviction 5/10MEDIUM importance65% confidence
BULLISH30d -21.1% vs SPY
Director Habiger buys $125K in BSX near 90-day low in first-ever purchase
91d ago

Director David Habiger bought $125K worth of BSX shares at $56.95, increasing his stake by 23.3% while the stock traded just 8.4% above its 90-day low. This first-time buy near the lows is notable but lacks supporting cluster buys from other insiders, limiting its overall significance.

Where it could go — Analyst mean target implies upside; bear case if stock breaks $52.52.

Conviction 4/10MEDIUM importance60% confidence
BULLISH30d -22.3% vs SPY
Director Habiger buys $125K in BSX near 90-day low in first-ever purchase
91d ago

Director David Habiger bought $125K worth of BSX shares at $56.95, increasing his stake by 23.3% while the stock traded just 8.4% above its 90-day low. This first-time buy near the lows is notable but lacks supporting cluster buys from other insiders, limiting its overall significance.

Where it could go — Analyst mean target implies upside; bear case if stock breaks $52.52.

Conviction 4/10MEDIUM importance60% confidence
BULLISH30d -21.1% vs SPY
BSX Director Ludwig buys $203K at 26% discount to high, stake +16%
91d ago

Director Edward Ludwig made his first-ever purchase of $203K in BSX at $56.68, increasing his stake by 16.4% while the stock traded 26% below its 90-day high. This is mildly interesting as a director buying near lows, but the weak $100K cluster signal and lack of historical pattern data limit significance.

Where it could go — Analyst mean target implies upside from current levels; bear case if stock breaks $52.52 support.

Conviction 5/10MEDIUM importance65% confidence

Recent insider trades

The open-market buys and sells filed on BSX.

Habiger David C
Director · 2026-08-04
+$57K
buy
Mahoney Michael F
Chairman, President & CEO · 2026-08-03
+$9.0M
buy
LUDWIG EDWARD J
Director · 2026-07-31
+$227K
buy
LUDWIG EDWARD J
Director · 2026-05-20
+$203K
buy
Pegus Cheryl
Director · 2026-05-20
+$100K
buy
Habiger David C
Director · 2026-05-19
+$251K
buy