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Picton Mahoney Asset Management’s Boston Scientific BSX Stock Holding History

Picton Mahoney Asset Management’s Portfolio BSX Stock Details BSX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.81M Sell
28,915
-340,990
-92% -$27.3M 0.01% 516
2025
Q4 		$35.3M Buy
369,905
+29,802
+9% +$2.92M 0.27% 68
2025
Q3 		$33.2M Buy
340,103
+7,734
+2% +$801K 0.3% 55
2025
Q2 		$35.7M Buy
332,369
+37,904
+13% +$3.84M 0.37% 50
2025
Q1 		$29.7M Buy
294,465
+13,344
+5% +$1.34M 0.51% 24
2024
Q4 		$25.1M Sell
281,121
-2,858
-1% -$252K 0.51% 30
2024
Q3 		$23.8M Sell
283,979
-4,239
-1% -$334K 0.78% 23
2024
Q2 		$22.2M Sell
288,218
-6,831
-2% -$500K 0.86% 20
2024
Q1 		$20.2M Sell
295,049
-2,993
-1% -$192K 0.61% 34
2023
Q4 		$17.2M Buy
298,042
+49,856
+20% +$2.66M 0.47% 41
2023
Q3 		$13.1M Buy
248,186
+89,323
+56% +$4.68M 0.39% 56
2023
Q2 		$8.59M Buy
158,863
+15,153
+11% +$791K 0.37% 90
2023
Q1 		$7.19M Buy
+143,710
New +$6.77M 0.32% 110
2017
Q1 		– Sell
-293,700
Closed -$6.35M – 191
2016
Q4 		$6.35M Sell
293,700
-64,270
-18% -$1.4M 0.52% 71
2016
Q3 		$8.52M Sell
357,970
-20,700
-5% -$494K 0.57% 67
2016
Q2 		$8.85M Sell
378,670
-19,400
-5% -$420K 0.55% 62
2016
Q1 		$7.49M Sell
398,070
-162,530
-29% -$2.85M 0.48% 80
2015
Q4 		$10.3M Buy
560,600
+5,700
+1% +$102K 0.62% 61
2015
Q3 		$9.11M Sell
554,900
-13,800
-2% -$236K 0.53% 72
2015
Q2 		$10.1M Sell
568,700
-467,500
-45% -$8.35M 0.5% 77
2015
Q1 		$18.4M Sell
1,036,200
-289,500
-22% -$4.58M 0.7% 40
2014
Q4 		$17.6M Buy
+1,325,700
New +$16.9M 0.84% 43
2013
Q3 		– Sell
-45,700
Closed -$424K – 330
2013
Q2 		$424K Buy
+45,700
New +$388K 0.03% 219

Other funds holding BSX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Picton Mahoney Asset Management's BSX Position: Q1 2026 in Review

Picton Mahoney Asset Management reduced its Boston Scientific (BSX) stake by 92% in Q1 2026, selling an estimated $27.3M and leaving 28,915 shares worth $1.81M. The position accounts for 0.01% of the portfolio, ranked #516.

Picton Mahoney Asset Management first reported a position in BSX in Q2 2013 and has held it in 23 quarters since. The position peaked at $35.7M in Q2 2025. 1,671 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

  • Picton Mahoney Asset Management held 28,915 shares of Boston Scientific worth $1.81M as of Q1 2026.
  • Picton Mahoney Asset Management sold 340,990 Boston Scientific shares in Q1 2026, an estimated $27.3M.
  • Boston Scientific made up 0.01% of Picton Mahoney Asset Management's portfolio in Q1 2026, its #516 holding.
  • Picton Mahoney Asset Management first reported a position in Boston Scientific in Q2 2013 and has held it in 23 quarters since.
  • Picton Mahoney Asset Management's Boston Scientific position peaked at $35.7M in Q2 2025.
  • 1,671 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Picton Mahoney Asset Management's 13F filing for Q1 2026, filed 13 May 2026.