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MILLENNIUM MANAGEMENT LLC

Position in PRTA — Prothena Corp Public Ltd Co

CIK 1273087 NEW YORK, NY

Position in PRTA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
+$0 QoQ
Shares Held
0
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
26 quarters on record

Common Shares in PRTA Over Time

Shares Held

Position Value (USD)

Derivatives in PRTA

reported options exposure · as of Jun 30, 2026
CallValue
$1,467,521
CallShares
149,900
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

MILLENNIUM MANAGEMENT LLC holds $4,596,705,485 across 322 Biotechnology names.

# Ticker Company Shares Value (USD) Open

All Filings in PRTA

Export CSV
33 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,467,521 149,900
2026-03-31 $488,916 50,300
2025-12-31 $209,870 21,976
2025-12-31 $739,170 77,400
2025-09-30 $6,061,926 621,099
2025-06-30 $1,035,414 170,579
2025-03-31 $649,279 52,467
2024-12-31 $1,703,619 123,005
2024-09-30 $1,882,760 112,538
2024-06-30 $645,866 31,292
2024-03-31 $7,981,909 322,241
2023-12-31 $1,368,419 37,656
2023-09-30 $12,811,581 265,525
2023-06-30 $696,456 10,200
2023-06-30 $2,260,068 33,100
2023-03-31 $9,434,152 194,639
2022-12-31 $12,870,002 213,610
2022-09-30 $2,425,200 40,000
2022-09-30 $242,520 4,000
2022-09-30 $7,847,765 129,437
2022-06-30 $5,556,790 204,670
2022-03-31 $9,971,724 272,675
2021-12-31 $494,000 10,000
2021-12-31 $10,862,615 219,891
2021-09-30 $10,803,382 151,669
2021-06-30 $4,521,201 87,944
2021-06-30 $3,429,047 66,700
2021-03-31 $502,400 20,000
2021-03-31 $576,654 22,956
2020-12-31 $6,608,742 550,270
2020-09-30 $7,184,198 719,139
2020-06-30 $6,744,890 644,827
2020-03-31 $6,813,867 636,810