How many shares of PRTA does TWO SIGMA INVESTMENTS, LP own?

As of 2026-Q2, TWO SIGMA INVESTMENTS, LP holds 1.3M shares of PRTA (PROTHENA CORP PLC).

What is TWO SIGMA INVESTMENTS, LP's PRTA position worth?

As of 2026-Q2, TWO SIGMA INVESTMENTS, LP's PRTA position is worth $12.4M.

Is TWO SIGMA INVESTMENTS, LP buying or selling PRTA?

In 2026-Q2, TWO SIGMA INVESTMENTS, LP increased their PRTA position (+4.9% change in shares).

When did TWO SIGMA INVESTMENTS, LP first buy PRTA?

Based on available 13F filings, TWO SIGMA INVESTMENTS, LP first reported a position in PRTA in 2018-Q4. They have held the position across 30 quarters.

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TWO SIGMA INVESTMENTS, LP

PRTA
30 quarters

Position history for TWO SIGMA INVESTMENTS, LP's holdings in PROTHENA CORP PLC

Current Value

$12.4M

Current Shares

1.3M

Total Value Change

+$8.6M

Total Shares Change

+901,411

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	1.3M	+4.9%	$12.4M	0.0%	$9.79	29
2026-Q1	Increased	1.2M	+80.0%	$11.7M	0.0%	$9.36	43
2025-Q4	Increased	670,138	+57.1%	$6.4M	0.0%	$9.31	39
2025-Q3	Increased	426,605	+111.8%	$4.2M	0.0%	$9.76	43
2025-Q2	Increased	201,450	+1156.5%	$1.2M	0.0%	$6.08	41
2025-Q1	Decreased	16,033	-58.2%	$198,408	0.0%	$13.14	0
2024-Q4	Increased	38,394	+265.4%	$531,757	0.0%	$14.88	39
2024-Q3	Decreased	10,507	-85.3%	$175,782	0.0%	$20.05	0
2024-Q2	New	71,559	-	$1.5M	0.0%	$20.64	35
2023-Q4	Exited	0	-100.0%	$0	0.0%	$36.34	0
2023-Q3	Decreased	136,203	-16.3%	$6.6M	0.0%	$48.25	0
2023-Q2	Decreased	162,733	-55.5%	$11.1M	0.0%	$68.64	0
2023-Q1	Increased	365,539	+79.7%	$17.7M	0.1%	$47.66	43
2022-Q4	Increased	203,435	+49.9%	$12.3M	0.0%	$60.25	39
2022-Q3	Decreased	135,685	-41.1%	$8.2M	0.0%	$59.47	0
2022-Q2	Decreased	230,427	-11.8%	$6.3M	0.0%	$26.81	0
2022-Q1	Decreased	261,291	-13.3%	$9.6M	0.0%	$36.52	0
2021-Q4	Decreased	301,454	-6.1%	$14.9M	0.0%	$47.72	0
2021-Q3	Decreased	321,166	-4.7%	$22.9M	0.1%	$70.81	0
2021-Q2	Increased	336,990	+13.7%	$17.3M	0.0%	$48.51	32
2021-Q1	Increased	296,378	+485.9%	$7.4M	0.0%	$22.66	44
2020-Q4	Decreased	50,581	-49.3%	$607,000	0.0%	$12.38	0
2020-Q3	Decreased	99,811	-12.7%	$997,000	0.0%	$9.93	0
2020-Q2	Increased	114,324	+38.9%	$1.2M	0.0%	$10.27	33
2020-Q1	Decreased	82,330	-44.0%	$881,000	0.0%	$10.63	0
2019-Q4	Increased	147,062	+21.5%	$2.3M	0.0%	$15.77	31
2019-Q3	Decreased	121,043	-67.1%	$949,000	0.0%	$7.80	0
2019-Q2	Decreased	367,523	-8.5%	$3.9M	0.0%	$10.57	0
2019-Q1	Increased	401,724	+10.5%	$4.9M	0.0%	$12.13	30
2018-Q4	New	363,576	-	$3.7M	0.0%	$10.25	37

Other major holders of PRTA: BNP PARIBAS FINANCIAL MARKETS, PRICE T ROWE ASSOCIATES INC /MD/

PRTA30 quarters

PRTA
30 quarters