How big is Prothena Biosciences Inc.'s plan?

Prothena Biosciences Inc.'s plan reported $41.0M in assets and 150 participants for 2024.

Original filing (PDF)20251014164524NAL0006847666001

Prothena Biosciences Inc.

Name: Prothena Biosciences Inc. — Prothena Biosciences, Form 5500 (2024)
Creator: Prothena Biosciences Inc.
License: https://www.usa.gov/government-works

Form 5500

FILING_RECEIVED

Prothena Biosciences Inc. 401(k) Plan

401(k) retirement plan · Prothena Biosciences Inc.'s Prothena Biosciences Inc. 401(k) Plan held $41.0M in plan assets for 150 participants in 2024, with Fidelity as recordkeeper.

Signals · 2

Corrective distributions issuedHigh average account balance

Active participants

150

Accounts w/ balance

211

Plan assets (EOY)

$41.0M

Net assets (EOY)

$41.0M

People on this filing

Kevin Hickey signed Prothena Biosciences Inc.'s 2024 Form 5500 as plan administrator.

Kevin Hickey — Plan Administrator — Form 5500 signer

Get verified email & phone for these signers

Signer names are public record from the Form 5500 e-signature.

Plan identifiers

Prothena Biosciences Inc.'s EIN is 46-1256213.

EIN 46-1256213

Plan number 001

Plan year 2024

ACK ID 20251014164524NAL0006847666001

Official Form 5500 document

Download the official 2024 Form 5500 (PDF) for Prothena Biosciences Inc. from the U.S. Department of Labor's EFAST2 system.

Download the official 2024 Form 5500 (PDF)

Plan features

Prothena Biosciences Inc.'s plan includes profit-sharing, ERISA 404(c) participant direction, a 401(k) feature, a default investment (QDIA).

Decision-maker contacts

One unlock reveals every key decision-maker — plan signer, CFO, HR & Benefits — with verified email + LinkedIn for PROTHENA BIOSCIENCES INC.

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How this plan invests

This plan

26 securities

funds · stocks · CUSIPs

Holdings are itemized directly on this plan's Schedule of Assets, below.

Plan health score

Top-tier plan health

Directional indicator from public Form 5500 data — compliance & integrity, total plan cost, participant health and vendor stack, benchmarked against same-size peers. Not a fiduciary tool.

Compliance & integrity

Total plan cost

Plan health

Vendor & structure

100

Knocking points off

Corrective distributions issued (likely failed ADP/ACP testing).

Helping the score

Below-peer total plan cost (95th percentile).
High average account balance (96th percentile).

Plan sponsor

Name

PROTHENA BIOSCIENCES INC

EIN

all filings

Address

1800 SIERRA POINT PARKWAY · BRISBANE, CA · 94005

Phone

(650) 278-1762

Industry

Professional & Technical Services

Plan administrator

Same as plan sponsor.

Plan characteristics

Plan number

001

Plan year

2024

Plan year begin

2024-01-01

Tax period

2024-12-31

Filed

2025-10-14

Pension benefit codes

2A · Age/service weighted or new comparability

2E · Profit-sharing

2F · ERISA section 404(c)

2G · Total participant-directed accounts

2J · 401(k) feature

2K · 401(m) arrangement

2T · Default investment account (QDIA)

3F · Sponsor used leased employees

Service providers (Schedule C)

1 rows

Recordkeeper

Name	EIN	Location	Relation	Direct comp	Indirect comp
FIDELITY INVESTMENTS INSTITUTIONAL	04-2647786	—	RECORDKEEPER	$1K	—

Investments

26 direct securities· $41.0M(100% of reported assets)

Mutual Funds

$29.4M

15 holdings

Common Collective Trusts

$9.0M

5 holdings

Other securities

$1.5M

4 holdings

Cash / Money Market

$868K

1 holding

Bonds / Notes

$173K

1 holding

					% of plan
Fidelity 500 Index Fund Mutual Fund	Common Collective Trusts	—	—	$5.4M	13.2%
Fidelity Freedom 2040 Fund Mutual Fund	Mutual Funds	—	—	$5.3M	12.9%
Fidelity Freedom 2035 Fund Mutual Fund	Mutual Funds	—	—	$4.6M	11.2%
Fidelity Freedom 2025 Fund Mutual Fund	Mutual Funds	—	—	$4.6M	11.1%
Fidelity Freedom 2045 Fund Mutual Fund	Mutual Funds	—	—	$3.3M	8.0%
Fidelity Freedom 2030 Fund Mutual Fund	Mutual Funds	—	—	$2.5M	6.1%
Fidelity Freedom 2050 Fund Mutual Fund	Mutual Funds	—	—	$2.4M	5.8%
Fidelity Blue Chip Growth Fund Mutual Fund	Mutual Funds	—	—	$2.2M	5.5%
Fidelity Freedom 2055 Fund Mutual Fund	Mutual Funds	—	—	$1.5M	3.6%
Fidelity Mid Cap Index Fund Mutual Fund	Common Collective Trusts	—	—	$1.3M	3.1%
Fidelity Small Cap Index Fund Mutual Fund	Common Collective Trusts	—	—	$1.1M	2.6%
JPMorgan Equity Income Fund Mutual Fund	Other securities	—	—	$869K	2.1%
Gabelli U.S. Treasury Money Market Fund Mutual Fund	Cash / Money Market	—	—	$868K	2.1%
Fidelity U.S. Bond Index Fund Mutual Fund	Common Collective Trusts	—	—	$863K	2.1%
MFS Mid Cap Growth Fund Mutual Fund	Mutual Funds	—	—	$828K	2.0%
Fidelity Freedom 2060 Fund Mutual Fund	Mutual Funds	—	—	$635K	1.5%
Fidelity Small Cap Growth Fund Mutual Fund	Mutual Funds	—	—	$632K	1.5%
Fidelity Global ex U.S. Index Fund Mutual Fund	Common Collective Trusts	—	—	$416K	1.0%
Fidelity Freedom Income Fund Mutual Fund	Mutual Funds	—	—	$312K	0.8%
Fidelity Freedom 2020 Fund Mutual Fund	Mutual Funds	—	—	$294K	0.7%
Allspring Special Mid Cap Value Fund Mutual Fund	Other securities	—	—	$284K	0.7%
Fidelity Total Bond Fund Mutual Fund	Mutual Funds	—	—	$264K	0.6%
The Hartford International Opportunities Fd Mutual Fund	Other securities	—	—	$242K	0.6%
participants 10.50%	Bonds / Notes	—	—	$173K	0.4%
Fidelity Freedom 2065 Fund Mutual Fund	Mutual Funds	—	—	$152K	0.4%
Allspring Special Small Cap Value Fund Mutual Fund	Other securities	—	—	$141K	0.3%