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DIMENSIONAL FUND ADVISORS LP

Position in PRTA — Prothena Corp Public Ltd Co

CIK 354204 AUSTIN, TX

Position in PRTA

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$8,866,321
+$1,259,422 QoQ
Shares Held
905,651
+15.7% QoQ
Ownership
1.76%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#16
of 187 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 89% Shared 7% None 5%

Common Shares in PRTA Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

DIMENSIONAL FUND ADVISORS LP holds $6,105,781,868 across 230 Biotechnology names. PRTA ranks #86 (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 $8,866,321 905,651
2026-03-31 $7,606,899 782,603
2025-12-31 $7,403,225 775,207
2025-09-30 $7,876,201 806,988
2025-06-30 $5,841,397 962,339
2025-03-31 $10,681,454 863,148
2024-12-31 $11,977,935 864,833
2024-09-30 $14,288,255 854,050
2024-06-30 $17,783,092 861,584
2024-03-31 $21,372,346 862,832
2023-12-31 $31,529,853 867,635
2023-09-30 $53,213,089 1,102,862
2023-06-30 $78,536,200 1,150,208
2023-03-31 $59,745,815 1,232,635
2022-12-31 $79,560,183 1,320,501
2022-09-30 $89,969,158 1,483,905
2022-06-30 $42,537,341 1,566,753
2022-03-31 $55,043,554 1,505,156
2021-12-31 $74,027,727 1,498,537
2021-09-30 $112,518,327 1,579,648
2021-06-30 $81,503,409 1,585,361
2021-03-31 $39,667,042 1,579,102
2020-12-31 $20,873,007 1,737,969
2020-09-30 $17,632,350 1,765,000
2020-06-30 $18,847,152 1,801,831
2020-03-31 $19,553,180 1,827,400