SEC Submission: Reform of Section 13(d)/Rule 13d-1 Disclosure Windows

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SEC Submission: Reform of Section 13(d)/Rule 13d-1 Disclosure Windows

To: Division of Corporation Finance

U.S. Securities and Exchange Commission

rule-comments@sec.gov

�

Date:

From: Ed N. Abdool

Executive Summary

Problem: The U.S. five-business-day disclosure rule under Section 13(d)/Rule 13d-1 creates

an information lag that can be exploited for arbitrage, disadvantaging retail investors and

undermining market confidence.

Evidence: The trading activity of Challenger Ltd in Telix Pharmaceuticals Ltd (ASX: TLX)

during August–September 2025 illustrates how delayed disclosures enable large investors to

profit from informational asymmetry.

Solution: This submission proposes five key reforms relevant to the SEC’s framework:

1. Require real-time (same-day) disclosure of changes in beneficial ownership above

5%.

2. Introduce a 90–180 day cooling-off period or a financial surcharge for rapid roundtrip trades.

3. Mandate 24-hour disclosure of block trades exceeding 1% of a company’s

outstanding voting shares.

4. Require consolidated group-level reporting across related entities.

5. Expand disclosure obligations to cover economic and derivative-based exposures.

1. Introduction

This submission raises urgent concerns about the adequacy of the U.S. beneficial ownership

disclosure framework under Section 13(d) of the Securities Exchange Act and Rule 13d-1. The fivebusiness-day disclosure window permits institutional investors to exploit information asymmetries,

harming retail investors and overall market fairness.

Although the case study originates from the Australian market, the same vulnerabilities exist in the

U.S., where delays in filing Schedule 13D/13G allow large investors to capture economic value

unavailable to the wider market.

2. Case Study: Timeline of Events – Challenger Ltd & Telix Pharmaceuticals (TLX)

Date

Challenger Action

Market/Public Disclosure

Lag/Impact

Lodged “Notice of ceasing to be

21 Aug a substantial holder” – sold

Disclosed same day.

2025 ~3.47M shares, dropping below

5%.

Market interpreted as fund

exit → share price

weakened.

29 Aug Sold another ~3.47M shares at

2025 ~$14.80 via off-market trade.

Not disclosed until 5 Sept

2025.

~7-day gap; market

unaware of ongoing

disposal.

2–3

Sept

2025

Still undisclosed at the time.

Challenger accumulated

during dip.

Re-purchased >3M shares at

~$14.20.

Lodged “Notice of initial

5 Sept

substantial holder” – declared

2025

holding of 16.9M shares (>5%).

Market informed of both the Retail investors were

disposal and reacquisition

disadvantaged by lack of

simultaneously.

timely information.

Observation: Challenger effectively sold high (29 Aug) and bought low (2–3 Sept) during a disclosure

lag. The informational delay enabled value capture not accessible to the wider market.

3. Structural Weaknesses in Current Disclosure Framework

1. Disclosure Lag (Rule 13d-1 – 5 business days)

o

Allows investors to build or reduce positions before disclosure.

o

In practice, weekends and intervening trades can extend informational gaps.

2. Opacity of Block Trades

o

Large transactions remain invisible until filings are made.

3. Fragmented Reporting

o

Disclosures by separate funds or affiliates can obscure aggregate group exposure.

4. Incomplete Derivatives Disclosure

o

Economic exposure through derivatives, swaps, or synthetic instruments may not

trigger disclosure thresholds.

4. Proposed Reforms

1. Real-Time Disclosure of Beneficial Ownership Changes

o

Amend Rule 13d-1 to require same-day disclosure of material changes above 5%.

2. Cooling-Off Period or Financial Surcharge

o

Restrict investors who reduce holdings below 5% from reaccumulating above that

threshold within 90–180 days, unless subject to a surcharge.

3. Enhanced Transparency for Block Trades

o

Require disclosure within 24 hours of any block trade exceeding 1% of voting shares.

4. Group-Level Consolidation

o

Mandate reporting at the parent/group level to prevent fragmented filings.

5. Derivative and Economic Exposure Reporting

o

Expand disclosure requirements to include derivative-based and synthetic

exposures.

5. Regulator Funding and Incentives

Surcharge revenue from opportunistic round-trip trades could fund SEC monitoring and

enforcement.

Public dashboards of block trades and beneficial ownership changes could be financed from

penalties and fees.

This approach reduces reliance on general taxpayer funding while enhancing transparency

and investor protection.

6. Conclusion

The Challenger Ltd case demonstrates that while investors may comply with current disclosure rules,

the framework itself enables behavior that undermines fairness and transparency.

I respectfully urge the SEC to consider reforms to:

Shorten the disclosure window to same-day;

Introduce cooling-off periods or surcharges;

Mandate faster disclosure of block trades;

Require consolidated group reporting; and

Expand the scope of beneficial ownership to include derivative exposures.

Such reforms would align the U.S. markets with global best practice and strengthen investor

confidence.

Disclaimer & Confidentiality Statement

(United States-specific)

This submission is provided in good faith for regulatory consideration and is intended solely for the

use of the U.S. Securities and Exchange Commission (SEC). It contains personal information and

policy analysis submitted on a confidential basis.

1. No Allegation of Misconduct

This document does not allege any unlawful or improper conduct by Challenger Limited, Telix

Pharmaceuticals Limited, or any associated parties. It is submitted solely as a policy proposal aimed

at strengthening market transparency and integrity under U.S. law.

2. Confidentiality of Personal Information

I do not consent to the disclosure of my personal details (including name, email address, and

signature) to Challenger Limited, Telix Pharmaceuticals Limited, or any other third party without my

prior written and signed consent.

3. Use of Submission Content

I request that the factual content and analysis within this submission be used only to the extent

strictly necessary and proportionate for any formal inquiry, consultation, or rulemaking process the

SEC may initiate, and only in accordance with applicable U.S. privacy and administrative law.

4. Public Interest Purpose

This submission is made in the public interest and is intended to support regulatory reform and the

enhancement of market integrity in the United States.

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.

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