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STOCK TITAN

[Form 4] Wave Life Sciences Ltd. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Negative)
Form Type
4
Rhea-AI Filing Summary

What happened: Wave Life Sciences director Ken Takanashi sold 4,872 ordinary shares on August 5, 2025 to cover taxes from restricted share units that vested.

Why it matters: The sale was executed under a pre-established 10b5-1 trading plan, indicating it was planned in advance rather than a discretionary decision. After the transaction he still directly beneficially owns 5,716,303 shares, so this was a small, routine tax-withholding sale rather than a material exit.

Cosa è successo: Il direttore di Wave Life Sciences, Ken Takanashi, ha venduto 4.872 azioni ordinarie il 5 agosto 2025 per coprire le imposte relative a unità azionarie vincolate che sono maturate.

Perché conta: La vendita è stata eseguita nell'ambito di un piano di negoziazione 10b5-1 preesistente, il che indica che era pianificata in anticipo e non una decisione discrezionale. Dopo l'operazione detiene ancora direttamente a titolo beneficiario 5.716.303 azioni, quindi si è trattato di una piccola vendita di routine per ritenuta fiscale e non di una dismissione rilevante.

Qué pasó: El director de Wave Life Sciences, Ken Takanashi, vendió 4.872 acciones ordinarias el 5 de agosto de 2025 para cubrir impuestos derivados de unidades restringidas que vencieron.

Por qué importa: La venta se realizó bajo un plan de negociación 10b5-1 preestablecido, lo que indica que fue planificada con antelación y no una decisión discrecional. Tras la operación aún posee directa y beneficiariamente 5.716.303 acciones, por lo que se trató de una pequeña venta rutinaria para retener impuestos y no de una salida significativa.

무슨 일이 있었�: Wave Life Sciences� 이사 Ken Takanashi� 2025� 8� 5� 제한주식 단위(RSU)� 베스팅으� 발생� 세금� 충당하기 위해 보통� 4,872주를 매각했습니다.

중요� 이유: 해당 매각은 사전 설정� 10b5-1 거래 계획� 따라 이뤄졌으�, 이는 재량� 따른 결정� 아니� 사전� 계획� 것임� 의미합니�. 거래 후에� 그는 여전� 직접적으� 수익� 소유자격으로 5,716,303�� 보유하고 있어, 이는 중대� 이탈� 아니� 세금 원천징수� 위한 소규� 통상 매각이었습니�.

Ce qui s'est passé : Le directeur de Wave Life Sciences, Ken Takanashi, a vendu 4 872 actions ordinaires le 5 août 2025 pour couvrir les impôts liés à des unités d'actions restreintes arrivées à échéance.

Pourquoi c'est important : La vente a été réalisée dans le cadre d'un plan de trading 10b5-1 préétabli, ce qui indique qu'elle était planifiée à l'avance et non une décision discrétionnaire. Après la transaction, il détient toujours directement et à titre bénéficiaire 5 716 303 actions, il s'agit donc d'une petite cession de retenue d'impôt de routine et non d'une sortie significative.

Was passiert ist: Wave Life Sciences-Direktor Ken Takanashi verkaufte am 5. August 2025 4.872 Stammaktien, um Steuern aus Restricted-Share-Units zu begleichen, die vesteten.

Warum das wichtig ist: Der Verkauf erfolgte im Rahmen eines vorab eingerichteten 10b5-1-Handelsplans, was darauf hinweist, dass er im Voraus geplant war und keine diskretionäre Entscheidung. Nach der Transaktion besitzt er weiterhin direkt und wirtschaftlich begünstigt 5.716.303 Aktien, sodass es sich um einen kleinen routinemäßigen steuerlichen Einbehalt und nicht um einen wesentlichen Ausstieg handelte.

Positive
  • Sale executed under a 10b5-1 trading plan, indicating it was pre-planned and not an opportunistic trade
  • Reporting person retains a large direct stake of 5,716,303 shares after the transaction
Negative
  • None.

Insights

TL;DR: Routine tax-related sale by a director under a 10b5-1 plan; not a sign of governance concerns.

This Form 4 reports a small, pre-planned sale to satisfy tax withholding on vested RSUs. Because the transaction was made pursuant to a 10b5-1 plan, it reduces the likelihood the sale signals new inside information or a change in intent. The director remains a large shareholder with over 5.7 million shares, which suggests continued alignment with shareholders. No governance red flags are evident from this filing alone.

TL;DR: Small, non-material insider sale executed at about $8.75 per share to cover taxes; negligible market impact.

The disposition of 4,872 shares at a reported price of $8.75 represents a modest cash-covering transaction tied to RSU vesting. Relative to the director's remaining stake of 5,716,303 shares, the sale is immaterial and unlikely to affect valuation or signal a change in company outlook. Investors should view this as routine insider liquidity rather than a material selling event.

Cosa è successo: Il direttore di Wave Life Sciences, Ken Takanashi, ha venduto 4.872 azioni ordinarie il 5 agosto 2025 per coprire le imposte relative a unità azionarie vincolate che sono maturate.

Perché conta: La vendita è stata eseguita nell'ambito di un piano di negoziazione 10b5-1 preesistente, il che indica che era pianificata in anticipo e non una decisione discrezionale. Dopo l'operazione detiene ancora direttamente a titolo beneficiario 5.716.303 azioni, quindi si è trattato di una piccola vendita di routine per ritenuta fiscale e non di una dismissione rilevante.

Qué pasó: El director de Wave Life Sciences, Ken Takanashi, vendió 4.872 acciones ordinarias el 5 de agosto de 2025 para cubrir impuestos derivados de unidades restringidas que vencieron.

Por qué importa: La venta se realizó bajo un plan de negociación 10b5-1 preestablecido, lo que indica que fue planificada con antelación y no una decisión discrecional. Tras la operación aún posee directa y beneficiariamente 5.716.303 acciones, por lo que se trató de una pequeña venta rutinaria para retener impuestos y no de una salida significativa.

무슨 일이 있었�: Wave Life Sciences� 이사 Ken Takanashi� 2025� 8� 5� 제한주식 단위(RSU)� 베스팅으� 발생� 세금� 충당하기 위해 보통� 4,872주를 매각했습니다.

중요� 이유: 해당 매각은 사전 설정� 10b5-1 거래 계획� 따라 이뤄졌으�, 이는 재량� 따른 결정� 아니� 사전� 계획� 것임� 의미합니�. 거래 후에� 그는 여전� 직접적으� 수익� 소유자격으로 5,716,303�� 보유하고 있어, 이는 중대� 이탈� 아니� 세금 원천징수� 위한 소규� 통상 매각이었습니�.

Ce qui s'est passé : Le directeur de Wave Life Sciences, Ken Takanashi, a vendu 4 872 actions ordinaires le 5 août 2025 pour couvrir les impôts liés à des unités d'actions restreintes arrivées à échéance.

Pourquoi c'est important : La vente a été réalisée dans le cadre d'un plan de trading 10b5-1 préétabli, ce qui indique qu'elle était planifiée à l'avance et non une décision discrétionnaire. Après la transaction, il détient toujours directement et à titre bénéficiaire 5 716 303 actions, il s'agit donc d'une petite cession de retenue d'impôt de routine et non d'une sortie significative.

Was passiert ist: Wave Life Sciences-Direktor Ken Takanashi verkaufte am 5. August 2025 4.872 Stammaktien, um Steuern aus Restricted-Share-Units zu begleichen, die vesteten.

Warum das wichtig ist: Der Verkauf erfolgte im Rahmen eines vorab eingerichteten 10b5-1-Handelsplans, was darauf hinweist, dass er im Voraus geplant war und keine diskretionäre Entscheidung. Nach der Transaktion besitzt er weiterhin direkt und wirtschaftlich begünstigt 5.716.303 Aktien, sodass es sich um einen kleinen routinemäßigen steuerlichen Einbehalt und nicht um einen wesentlichen Ausstieg handelte.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
TAKANASHI KEN

(Last) (First) (Middle)
C/O SHIN NIPPON BIOMEDICAL LABORATORIES,
2438 MIYANOURA-MACHI, KAGOSHIMA CITY

(Street)
KAGOSHIMA M0 891-1394

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Wave Life Sciences Ltd. [ WVE ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
08/05/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Ordinary Shares 08/05/2025 S 4,872(1) D $8.75 5,716,303 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. On August 5, 2025, the reporting person sold 4,872 ordinary shares solely to cover taxes associated with the vesting of restricted share units on August 5, 2025. These sales were made pursuant to a 10b5-1 Trading Plan.
/s/ Ken Takanashi 08/07/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

Who sold shares in the Wave Life (WVE) Form 4?

Ken Takanashi, a director of Wave Life Sciences, is the reporting person who sold shares.

How many shares did the director sell and when?

The director sold 4,872 ordinary shares on August 5, 2025.

Why were the shares sold?

The sale was to cover taxes associated with the vesting of restricted share units (RSUs).

Was the sale discretionary or pre-planned?

The sale was executed pursuant to a 10b5-1 trading plan, indicating it was pre-planned.

At what price were the shares sold and how many shares remain owned?

The reported price was $8.75 per share, and the reporting person directly beneficially owns 5,716,303 shares following the transaction.
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