Goldman Sachs
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Goldman Sachs’s Prothena Corp PRTA Stock Holding History

Goldman Sachs’s Portfolio PRTA Stock Details PRTA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2018
Q3 		– Sell
-1,100
Closed -$16K – 5748
2018
Q2 		$16K Sell
1,100
-3,200
-74% -$63.2K ﹤0.01% 5508
2018
Q1 		$158K Sell
4,300
-11,800
-73% -$429K ﹤0.01% 5112
2017
Q4 		$604K Buy
16,100
+10,300
+178% +$524K ﹤0.01% 4686
2017
Q3 		$376K Sell
5,800
-16,400
-74% -$1M ﹤0.01% 5303
2017
Q2 		$1.2M Buy
22,200
+7,700
+53% +$410K ﹤0.01% 4293
2017
Q1 		$809K Buy
14,500
+10,700
+282% +$562K ﹤0.01% 4574
2016
Q4 		$187K Sell
3,800
-8,400
-69% -$463K ﹤0.01% 5812
2016
Q3 		$732K Buy
12,200
+7,500
+160% +$402K ﹤0.01% 4683
2016
Q2 		$164K Sell
4,700
-45,100
-91% -$1.96M ﹤0.01% 5838
2016
Q1 		$2.05M Buy
49,800
+42,000
+538% +$1.64M ﹤0.01% 3441
2015
Q4 		$531K Sell
7,800
-10,300
-57% -$621K ﹤0.01% 4868
2015
Q3 		$821K Buy
18,100
+1,800
+11% +$105K ﹤0.01% 4670
2015
Q2 		$859K Buy
16,300
+13,800
+552% +$545K ﹤0.01% 4674
2015
Q1 		$95K Sell
2,500
-51,622
-95% -$1.32M ﹤0.01% 6438
2014
Q4 		$1.12M Sell
54,122
-56,100
-51% -$1.17M ﹤0.01% 4437
2014
Q3 		$2.44M Buy
110,222
+53,080
+93% +$1.13M ﹤0.01% 3741
2014
Q2 		$1.29M Buy
57,142
+57,000
+40,141% +$1.43M ﹤0.01% 4452
2014
Q1 		$5K Sell
142
-192
-57% -$6.19K ﹤0.01% 6730
2013
Q4 		$9K Buy
+334
New +$8.38K ﹤0.01% 6586

Other funds holding PRTA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $724M AUM 96.91% 1-Year Est. Return

Goldman Sachs's PRTA Position: Q2 2026 in Review

Goldman Sachs increased its Prothena Corp (PRTA) stake by 20% in Q2 2026, buying an estimated $1.59M and bringing the position to 979,730 shares worth $9.59M. The position accounts for ﹤0.01% of the portfolio, ranked #3273.

Goldman Sachs first reported a position in PRTA in Q2 2013 and has held it in 52 quarters since. The position peaked at $20.6M in Q3 2017. 187 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.

  • Goldman Sachs held 979,730 shares of Prothena Corp worth $9.59M as of Q2 2026.
  • Goldman Sachs bought 160,845 Prothena Corp shares in Q2 2026, an estimated $1.59M.
  • Prothena Corp made up ﹤0.01% of Goldman Sachs's portfolio in Q2 2026, its #3273 holding.
  • Goldman Sachs first reported a position in Prothena Corp in Q2 2013 and has held it in 52 quarters since.
  • Goldman Sachs's Prothena Corp position peaked at $20.6M in Q3 2017.
  • 187 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.

Based on Goldman Sachs's 13F filing for Q2 2026, filed 14 Aug 2026.