Manulife (Manufacturers Life Insurance)
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Manulife (Manufacturers Life Insurance)’s Prothena Corp PRTA Stock Holding History

Manulife (Manufacturers Life Insurance)’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
2026
Q1 		$118K Sell
12,184
-1,511
-11% -$13.8K ﹤0.01% 2585
2025
Q4 		$131K Sell
13,695
-172
-1% -$1.75K ﹤0.01% 2653
2025
Q3 		$135K Sell
13,867
-1,273
-8% -$9.79K ﹤0.01% 2704
2025
Q2 		$91.9K Sell
15,140
-50,091
-77% -$376K ﹤0.01% 2772
2025
Q1 		$807K Sell
65,231
-4,953
-7% -$70K ﹤0.01% 1907
2024
Q4 		$972K Sell
70,184
-15,887
-18% -$251K ﹤0.01% 1926
2024
Q3 		$1.44M Buy
86,071
+3,163
+4% +$68K ﹤0.01% 1725
2024
Q2 		$1.71M Buy
82,908
+327
+0.4% +$7.08K ﹤0.01% 1554
2024
Q1 		$2.05M Sell
82,581
-3,041
-4% -$90.5K ﹤0.01% 1511
2023
Q4 		$3.11M Buy
85,622
+3,591
+4% +$138K ﹤0.01% 1332
2023
Q3 		$3.96M Buy
82,031
+16,621
+25% +$987K ﹤0.01% 1212
2023
Q2 		$4.47M Buy
65,410
+8,444
+15% +$545K ﹤0.01% 1141
2023
Q1 		$2.76M Buy
56,966
+1,904
+3% +$101K ﹤0.01% 1308
2022
Q4 		$3.29M Buy
55,062
+2,031
+4% +$119K ﹤0.01% 1244
2022
Q3 		$3.17M Sell
53,031
-305
-0.6% -$9.64K ﹤0.01% 1248
2022
Q2 		$1.43M Sell
53,336
-1,307
-2% -$38.2K ﹤0.01% 1505
2022
Q1 		$2M Buy
54,643
+37,277
+215% +$1.34M ﹤0.01% 1508
2021
Q4 		$858 Buy
17,366
+83
+0.5% +$4.6K ﹤0.01% 1935
2021
Q3 		$1.23M Sell
17,283
-1,371
-7% -$85.1K ﹤0.01% 1709
2021
Q2 		$959K Buy
18,654
+1,429
+8% +$44.6K ﹤0.01% 2017
2021
Q1 		$433K Sell
17,225
-1,884
-10% -$35.4K ﹤0.01% 2380
2020
Q4 		$229K Buy
19,109
+750
+4% +$8.87K ﹤0.01% 2694
2020
Q3 		$183K Hold
18,359
– – ﹤0.01% 2605
2020
Q2 		$189K Sell
18,359
-6,757
-27% -$75.1K ﹤0.01% 2536
2020
Q1 		$269K Buy
25,116
+1,251
+5% +$15.2K ﹤0.01% 2164
2019
Q4 		$308K Sell
23,865
-1,940
-8% -$20.8K ﹤0.01% 2323
2019
Q3 		$201K Hold
25,805
– – ﹤0.01% 2586
2019
Q2 		$273K Sell
25,805
-562
-2% -$5.77K ﹤0.01% 2420
2019
Q1 		$320K Buy
26,367
+13,879
+111% +$173K ﹤0.01% 2244
2018
Q4 		$129K Sell
12,488
-14,335
-53% -$170K ﹤0.01% 2404
2018
Q3 		$351K Sell
26,823
-3,181
-11% -$45.9K ﹤0.01% 2471
2018
Q2 		$437K Buy
30,004
+2,035
+7% +$40.2K ﹤0.01% 2498
2018
Q1 		$1.03M Sell
27,969
-302
-1% -$11K ﹤0.01% 1825
2017
Q4 		$1.06M Buy
28,271
+251
+0.9% +$12.8K ﹤0.01% 1812
2017
Q3 		$1.81M Sell
28,020
-539
-2% -$33K ﹤0.01% 1478
2017
Q2 		$1.54M Buy
28,559
+2,664
+10% +$142K ﹤0.01% 1564
2017
Q1 		$1.45M Buy
25,895
+3,243
+14% +$170K ﹤0.01% 1566
2016
Q4 		$1.11M Buy
22,652
+43
+0.2% +$2.37K ﹤0.01% 1630
2016
Q3 		$1.35M Buy
22,609
+37
+0.2% +$1.99K ﹤0.01% 1497
2016
Q2 		$789K Buy
22,572
+2,165
+11% +$94.3K ﹤0.01% 1752
2016
Q1 		$822K Buy
20,407
+835
+4% +$32.7K ﹤0.01% 1706
2015
Q4 		$1.33K Buy
19,572
+206
+1% +$12.4K ﹤0.01% 1500
2015
Q3 		$878 Buy
19,366
+490
+3% +$28.5K ﹤0.01% 1664
2015
Q2 		$995 Buy
18,876
+1,692
+10% +$66.8K ﹤0.01% 1696
2015
Q1 		$656 Buy
17,184
+630
+4% +$16.2K ﹤0.01% 1932
2014
Q4 		$343 Sell
16,554
-99
-0.6% -$2.07K ﹤0.01% 2241
2014
Q3 		$369 Buy
16,653
+3,001
+22% +$63.6K ﹤0.01% 2196
2014
Q2 		$308K Buy
13,652
+3,287
+32% +$82.2K ﹤0.01% 2396
2014
Q1 		$397 Buy
10,365
+152
+1% +$4.9K ﹤0.01% 2238
2013
Q4 		$270 Sell
10,213
-18
-0.2% -$451 ﹤0.01% 2493
2013
Q3 		$207 Buy
+10,231
New +$181K ﹤0.01% 2630

Other funds holding PRTA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return

Manulife (Manufacturers Life Insurance)'s PRTA Position: Q1 2026 in Review

Manulife (Manufacturers Life Insurance) reduced its Prothena Corp (PRTA) stake by 11% in Q1 2026, selling an estimated $13.8K and leaving 12,184 shares worth $118K. The position accounts for ﹤0.01% of the portfolio, ranked #2585.

Manulife (Manufacturers Life Insurance) first reported a position in PRTA in Q3 2013 and has held it in 51 quarters since. The position peaked at $4.47M in Q2 2023. 185 funds tracked by Wall St. Rank hold PRTA as of Q1 2026.

  • Manulife (Manufacturers Life Insurance) held 12,184 shares of Prothena Corp worth $118K as of Q1 2026.
  • Manulife (Manufacturers Life Insurance) sold 1,511 Prothena Corp shares in Q1 2026, an estimated $13.8K.
  • Prothena Corp made up ﹤0.01% of Manulife (Manufacturers Life Insurance)'s portfolio in Q1 2026, its #2585 holding.
  • Manulife (Manufacturers Life Insurance) first reported a position in Prothena Corp in Q3 2013 and has held it in 51 quarters since.
  • Manulife (Manufacturers Life Insurance)'s Prothena Corp position peaked at $4.47M in Q2 2023.
  • 185 funds tracked by Wall St. Rank held Prothena Corp as of Q1 2026.

Based on Manulife (Manufacturers Life Insurance)'s 13F filing for Q1 2026, filed 15 May 2026.