Wellington Mgmt. Group Adjusts PTC Therapeutics Stake to 9.7%

TL;DR

**Wellington Management Group LLP now owns 9.7% of PTC Therapeutics, down from 10.1%.**

AI Summary

Wellington Management Group LLP, a major investment firm, filed an amended SC 13G/A on February 8, 2024, indicating a change in its ownership stake in PTC Therapeutics, Inc. as of December 29, 2023. This amendment, number 4, shows that Wellington Management Group LLP now beneficially owns 7,046,750 shares of PTC Therapeutics' Common Stock, representing 9.7% of the company. This matters to investors because it signals a significant institutional investor's continued, albeit slightly reduced, confidence in PTC Therapeutics, as their previous filing showed 10.1% ownership.

Why It Matters

This filing shows a prominent institutional investor, Wellington Management Group LLP, still holds a substantial stake in PTC Therapeutics, Inc., which can influence market perception and stock stability.

Risk Assessment

Risk Level: low — The filing indicates a minor adjustment in a large institutional holding, not a complete divestment or a new, aggressive stake, suggesting low immediate risk.

Analyst Insight

Investors should note that a major institutional investor like Wellington Management Group LLP continues to hold a substantial stake in PTC Therapeutics, Inc., which could be seen as a vote of confidence, but the slight reduction from previous filings warrants monitoring for further changes in their position.

Key Numbers

• 7,046,750 — Shares Beneficially Owned (Represents Wellington Management Group LLP's total holding in PTC Therapeutics, Inc.)
• 9.7% — Percentage of Class (Indicates Wellington Management Group LLP's significant ownership stake in PTC Therapeutics, Inc.)

Key Players & Entities

• Wellington Management Group LLP (company) — the reporting person and institutional investor
• PTC Therapeutics, Inc. (company) — the subject company whose securities are being reported
• 7,046,750 shares (dollar_amount) — the total number of shares beneficially owned by Wellington Management Group LLP
• 9.7% (dollar_amount) — the percentage of class beneficially owned by Wellington Management Group LLP
• December 29, 2023 (date) — the date of the event requiring the filing

Forward-Looking Statements

• Wellington Management Group LLP will maintain a significant, albeit potentially fluctuating, stake in PTC Therapeutics, Inc. above 5% for the foreseeable future. (Wellington Management Group LLP) — high confidence, target: December 29, 2024

FAQ

Filing Documents

• SEC13G_Filing.htm (SC 13G/A) — 35KB
• 0000902219-24-000109.txt ( ) — 37KB

From the Filing

SC 13G/A 1 SEC13G_Filing.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 ) * PTC Therapeutics, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 69366J200 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) * The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 (the "Act") or otherwise subject to the liabilities of that section of the Act, but shall be subject to all other provisions of the Act (however, see the Notes.) CUSIP No. 69366J200 1. NAMES OF REPORTING PERSONS Wellington Management Group LLP 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Massachusetts NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 0 6. SHARED VOTING POWER 9,218,634 7. SOLE DISPOSITIVE POWER 0 8. SHARED DISPOSITIVE POWER 9,816,603 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9,816,603 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 13.01% 12. TYPE OF REPORTING PERSON HC CUSIP No. 69366J200 1. NAMES OF REPORTING PERSONS Wellington Group Holdings LLP 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 0 6. SHARED VOTING POWER 9,218,634 7. SOLE DISPOSITIVE POWER 0 8. SHARED DISPOSITIVE POWER 9,816,603 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9,816,603 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 13.01% 12. TYPE OF REPORTING PERSON HC CUSIP No. 69366J200 1. NAMES OF REPORTING PERSONS Wellington Investment Advisors Holdings LLP 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 0 6. SHARED VOTING POWER 9,218,634 7. SOLE DISPOSITIVE POWER 0 8. SHARED DISPOSITIVE POWER 9,816,603 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9,816,603 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 13.01% 12. TYPE OF REPORTING PERSON HC CUSIP No. 69366J200 1. NAMES OF REPORTING PERSONS Wellington Management Company LLP 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 0 6. SHARED VOTING POWER 9,186,712 7. SOLE DISPOSITIVE POWER 0 8. SHARED DISPOSITIVE POWER 9,632,252 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9,632,252 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 12.76% 12. TYPE OF REPORTING PERSON IA Item 1. (a) Name of Issuer PTC Therapeutics, Inc. (b) Address of Issuer's Principal Executive Offices 100 Corporate Court South Plainfield, NJ 07080-2449 Item 2. (a) Name of Person Filing Wellington Management Group LLP Wellington Group Holdings LLP Wellington Investment Advisors Holdings LLP Wellington Management Company LLP (b) Address of Principal Business Office or, if None, Residence c/o Wellington Management Company LLP 280 Congress Street Boston, MA 02210 (c) Citizenship Wellington Management Group LLP - Massachusetts Wellington Group Holdings LLP - Delaware Wellington Investment Advisors Holdings LLP - Delaware Wellington Management Company LLP - Delaware (d) Title of Class of Securities Common Stock (e) CUSIP Number 69366J200 Item 3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a: (a) [ ] Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o). (b) [ ] Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c). (c) [ ] Insurance Company as d

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