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NORTHERN TRUST CORP

Bank

Position in PRTA — Prothena Corp Public Ltd Co

CIK 73124 CHICAGO, IL

Position in PRTA

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$4,475,243
+$883,296 QoQ
Shares Held
457,124
+23.7% QoQ
Ownership
0.890%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#23
of 187 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 98% Shared 2% None 0%

Common Shares in PRTA Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

NORTHERN TRUST CORP holds $7,813,607,781 across 424 Biotechnology names. PRTA ranks #172 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PRTA

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,475,243 457,124
2026-03-31 $3,591,947 369,542
2025-12-31 $3,468,949 363,241
2025-09-30 $3,266,252 334,657
2025-06-30 $2,030,740 334,554
2025-03-31 $4,624,572 373,703
2024-12-31 $5,602,268 404,496
2024-09-30 $6,234,516 372,655
2024-06-30 $7,515,145 364,106
2024-03-31 $9,840,203 397,263
2023-12-31 $14,685,356 404,110
2023-09-30 $19,775,116 409,847
2023-06-30 $28,129,651 411,975
2023-03-31 $18,548,886 382,688
2022-12-31 $21,785,495 361,585
2022-09-30 $21,047,581 347,148
2022-06-30 $9,562,798 352,221
2022-03-31 $13,340,441 364,792
2021-12-31 $21,974,056 444,819
2021-09-30 $31,411,360 440,985
2021-06-30 $22,686,408 441,284
2021-03-31 $8,572,826 341,275
2020-12-31 $4,445,619 370,160
2020-09-30 $3,862,401 386,627
2020-06-30 $4,511,825 431,341
2020-03-31 $5,508,851 514,846