Westfield Capital Management
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Westfield Capital Management’s PTC Therapeutics PTCT Stock Holding History

Westfield Capital Management’s Portfolio PTCT Stock Details PTCT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-5,076
Closed -$259K – 267
2025
Q1 		$259K Buy
+5,076
New +$253K ﹤0.01% 243
2016
Q1 		– Sell
-1,872,220
Closed -$60.7M – 283
2015
Q4 		$60.7M Buy
1,872,220
+621,079
+50% +$18.3M 0.41% 81
2015
Q3 		$33.4M Sell
1,251,141
-1,215,619
-49% -$52M 0.24% 123
2015
Q2 		$119M Buy
2,466,760
+122,419
+5% +$7.14M 0.72% 38
2015
Q1 		$143M Buy
2,344,341
+1,613,031
+221% +$98.4M 0.82% 30
2014
Q4 		$37.9M Buy
731,310
+10,330
+1% +$455K 0.22% 135
2014
Q3 		$31.7M Sell
720,980
-8,270
-1% -$259K 0.19% 153
2014
Q2 		$19.1M Buy
729,250
+238,110
+48% +$5.1M 0.11% 206
2014
Q1 		$12.8M Buy
+491,140
New +$13.2M 0.08% 226

Other funds holding PTCT

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AC
Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Toronto Dominion Bank
Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $69.7B AUM 40.86% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Westfield Capital Management's PTCT Position: Q2 2025 in Review

Westfield Capital Management sold out of PTC Therapeutics (PTCT) in Q2 2025, closing a stake of 5,076 shares — an estimated $259K sold.

Westfield Capital Management first reported a position in PTCT in Q1 2014 and held it in 9 quarters. The position peaked at $143M in Q1 2015. 283 funds tracked by Wall St. Rank hold PTCT as of Q2 2025.

  • Westfield Capital Management reported no remaining PTC Therapeutics position as of Q2 2025 after selling out during the quarter.
  • Westfield Capital Management sold 5,076 PTC Therapeutics shares in Q2 2025, an estimated $259K.
  • Westfield Capital Management first reported a position in PTC Therapeutics in Q1 2014 and held it in 9 quarters.
  • Westfield Capital Management's PTC Therapeutics position peaked at $143M in Q1 2015.
  • 283 funds tracked by Wall St. Rank held PTC Therapeutics as of Q2 2025.

Based on Westfield Capital Management's 13F filing for Q2 2025, filed 12 Aug 2025.