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[Form 4/A] ProMIS Neurosciences Inc. Amended Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4/A
Rhea-AI Filing Summary

Title 19 Promis exercised purchase warrants to acquire common shares of ProMIS Neurosciences (PMN). On 07/25/2025 the reporting person exercised 119,800 Tranche A warrants, 119,800 Tranche B warrants and 119,800 Tranche C warrants, each exercised for one common share at an adjusted exercise price of $0.83518 per share (original tranche exercise prices were $2.02 for A and B, $2.50 for C). Each exercise resulted in issuance of 119,800 common shares per tranche, zero cash price reported for derivative value, and 345,316 common shares reported as beneficially owned following the transactions. The Form 4/A corrects an inadvertent prior disclosure of the exercise price. The remarks state that, based on the issuer's reported outstanding shares of 51,806,497, the reporting person’s ownership dropped below 10%.

Title 19 Promis ha esercitato warrant di acquisto per ottenere azioni ordinarie di ProMIS Neurosciences (PMN). In data 25/07/2025 il dichiarante ha esercitato 119.800 warrant Tranche A, 119.800 warrant Tranche B e 119.800 warrant Tranche C, ciascuno convertito in un’azione ordinaria al prezzo di esercizio rettificato di $0.83518 per azione (i prezzi di esercizio originali erano $2,02 per A e B e $2,50 per C). Ogni esercizio ha comportato l’emissione di 119.800 azioni ordinarie per tranche, non è stato riportato alcun corrispettivo in contanti per il valore del derivato, e dopo le operazioni risultano possedute beneficiariamente 345.316 azioni ordinarie. Il Form 4/A corregge una precedente comunicazione involontaria del prezzo di esercizio. Nelle note si precisa che, in base alle azioni in circolazione dichiarate dall’emittente pari a 51.806.497, la partecipazione del dichiarante è scesa al di sotto del 10%.

Title 19 Promis ejerció warrants de compra para adquirir acciones ordinarias de ProMIS Neurosciences (PMN). El 25/07/2025 la persona informante ejerció 119.800 warrants Tranche A, 119.800 Tranche B y 119.800 Tranche C, cada uno convertido en una acción ordinaria a un precio de ejercicio ajustado de $0.83518 por acción (los precios de ejercicio originales eran $2.02 para A y B y $2.50 para C). Cada ejercicio resultó en la emisión de 119.800 acciones ordinarias por tranche, no se reportó precio en efectivo por el valor del derivado, y tras las transacciones se informaron 345.316 acciones ordinarias en propiedad beneficiaria. El Form 4/A corrige una divulgación inadvertida previa del precio de ejercicio. En las observaciones se indica que, según las acciones en circulación reportadas por el emisor de 51.806.497, la participación del informante cayó por debajo del 10%.

Title 19 Promis는 ProMIS Neurosciences(PMN)의 보통주를 취득하기 위해 매수워런트를 행사했습니다. 2025-07-25에 보고인은 119,800개의 Tranche A 워런트, 119,800개의 Tranche B 워런트 및 119,800개의 Tranche C 워런트를 각각 행사하여 조정된 행사가격인 $0.83518 per share에 보통주 한 주로 전환했습니다(원래 트랜치 행사가격은 A·B $2.02, C $2.50). 각 행사로 트랜치당 119,800주 보통주가 발행되었고, 파생상품 가치에 대한 현금 가격은 보고되지 않았으며, 거래 후 총 345,316주 보통주를 실질적으로 보유하고 있는 것으로 보고되었습니다. Form 4/A는 이전에 실수로 공시된 행사가격을 정정한 것입니다. 비고에는 발행사가 보고한 51,806,497주를 기준으로 보고인의 지분이 10% 미만으로 하락했다고 적혀 있습니다.

Title 19 Promis a exercé des warrants d’achat pour acquérir des actions ordinaires de ProMIS Neurosciences (PMN). Le 25/07/2025, la personne déclarante a exercé 119 800 warrants de la Tranche A, 119 800 de la Tranche B et 119 800 de la Tranche C, chacun converti en une action ordinaire au prix d’exercice ajusté de $0.83518 par action (les prix d’exercice initiaux étaient de $2,02 pour A et B et $2,50 pour C). Chaque exercice a entraîné l’émission de 119 800 actions ordinaires par tranche, aucun prix en espèces n’a été déclaré pour la valeur du produit dérivé, et 345 316 actions ordinaires ont été déclarées comme détenues effectivement après les opérations. Le formulaire 4/A corrige une divulgation antérieure involontaire du prix d’exercice. Les remarques indiquent que, sur la base des actions en circulation déclarées par l’émetteur de 51 806 497, la participation du déclarant est passée en dessous de 10%.

Title 19 Promis hat Kauf-Warrants ausgeübt, um Stammaktien von ProMIS Neurosciences (PMN) zu erwerben. Am 25.07.2025 übte die meldende Person 119.800 Tranche-A-Warrants, 119.800 Tranche-B-Warrants und 119.800 Tranche-C-Warrants aus, jeweils zum Umtausch in eine Stammaktie zu einem bereinigten Ausübungspreis von $0.83518 pro Aktie (ursprüngliche Ausübungspreise: A und B $2,02, C $2,50). Jede Ausübung führte zur Ausgabe von 119.800 Stammaktien pro Tranche, es wurde kein Bargeldbetrag für den Derivatewert gemeldet, und nach den Transaktionen wurden 345.316 Stammaktien als wirtschaftlich gehalten gemeldet. Das Formular 4/A korrigiert eine versehentliche frühere Angabe des Ausübungspreises. In den Bemerkungen heißt es, dass die Beteiligung der meldenden Person anhand der vom Emittenten berichteten ausstehenden Aktien von 51.806.497 unter 10% gefallen ist.

Positive
  • Corrected disclosure of the exercise price from $0.83158 to $0.83518, improving filing accuracy
  • Issuer-accepted exercise achieved, converting warrants into common shares and clarifying beneficial ownership
Negative
  • Reporting person’s ownership dropped below 10% based on issuer's reported 51,806,497 outstanding shares
  • Initial filing contained an incorrect exercise price, requiring an amendment to correct material transaction detail

Insights

TL;DR Insider exercised warrants materially below original strike prices, increasing common shares outstanding and correcting a prior pricing error.

The exercise of 359,400 warrants (119,800 per tranche) at an accepted price of $0.83518 materially changes the reporting person’s immediate share count while reflecting amendment-level housekeeping to correct the disclosed exercise price. This is an issuer-accepted private exercise arrangement reducing the effective price paid versus original tranche strikes; the filing notes resulting beneficial ownership of 345,316 shares and that ownership fell below 10% using the issuer's stated outstanding share count of 51,806,497. For investors, the transaction is primarily a change in ownership composition and disclosure accuracy rather than a direct statement about operational performance.

TL;DR Amendment clarifies exercise price and reports changes to insider ownership percentage; governance disclosure corrected.

The Form 4/A aligns insider reporting with the issuer-approved exercise terms and corrects a numeric error in the initial filing. Accurate disclosure of exercise prices and resultant ownership percentages is important for compliance and market transparency. The remark that ownership fell below 10%—based on the issuer's reported outstanding shares—highlights the importance of timely issuer share counts in Section 16 calculations. This amendment addresses disclosure integrity rather than alleging misconduct.

Title 19 Promis ha esercitato warrant di acquisto per ottenere azioni ordinarie di ProMIS Neurosciences (PMN). In data 25/07/2025 il dichiarante ha esercitato 119.800 warrant Tranche A, 119.800 warrant Tranche B e 119.800 warrant Tranche C, ciascuno convertito in un’azione ordinaria al prezzo di esercizio rettificato di $0.83518 per azione (i prezzi di esercizio originali erano $2,02 per A e B e $2,50 per C). Ogni esercizio ha comportato l’emissione di 119.800 azioni ordinarie per tranche, non è stato riportato alcun corrispettivo in contanti per il valore del derivato, e dopo le operazioni risultano possedute beneficiariamente 345.316 azioni ordinarie. Il Form 4/A corregge una precedente comunicazione involontaria del prezzo di esercizio. Nelle note si precisa che, in base alle azioni in circolazione dichiarate dall’emittente pari a 51.806.497, la partecipazione del dichiarante è scesa al di sotto del 10%.

Title 19 Promis ejerció warrants de compra para adquirir acciones ordinarias de ProMIS Neurosciences (PMN). El 25/07/2025 la persona informante ejerció 119.800 warrants Tranche A, 119.800 Tranche B y 119.800 Tranche C, cada uno convertido en una acción ordinaria a un precio de ejercicio ajustado de $0.83518 por acción (los precios de ejercicio originales eran $2.02 para A y B y $2.50 para C). Cada ejercicio resultó en la emisión de 119.800 acciones ordinarias por tranche, no se reportó precio en efectivo por el valor del derivado, y tras las transacciones se informaron 345.316 acciones ordinarias en propiedad beneficiaria. El Form 4/A corrige una divulgación inadvertida previa del precio de ejercicio. En las observaciones se indica que, según las acciones en circulación reportadas por el emisor de 51.806.497, la participación del informante cayó por debajo del 10%.

Title 19 Promis는 ProMIS Neurosciences(PMN)의 보통주를 취득하기 위해 매수워런트를 행사했습니다. 2025-07-25에 보고인은 119,800개의 Tranche A 워런트, 119,800개의 Tranche B 워런트 및 119,800개의 Tranche C 워런트를 각각 행사하여 조정된 행사가격인 $0.83518 per share에 보통주 한 주로 전환했습니다(원래 트랜치 행사가격은 A·B $2.02, C $2.50). 각 행사로 트랜치당 119,800주 보통주가 발행되었고, 파생상품 가치에 대한 현금 가격은 보고되지 않았으며, 거래 후 총 345,316주 보통주를 실질적으로 보유하고 있는 것으로 보고되었습니다. Form 4/A는 이전에 실수로 공시된 행사가격을 정정한 것입니다. 비고에는 발행사가 보고한 51,806,497주를 기준으로 보고인의 지분이 10% 미만으로 하락했다고 적혀 있습니다.

Title 19 Promis a exercé des warrants d’achat pour acquérir des actions ordinaires de ProMIS Neurosciences (PMN). Le 25/07/2025, la personne déclarante a exercé 119 800 warrants de la Tranche A, 119 800 de la Tranche B et 119 800 de la Tranche C, chacun converti en une action ordinaire au prix d’exercice ajusté de $0.83518 par action (les prix d’exercice initiaux étaient de $2,02 pour A et B et $2,50 pour C). Chaque exercice a entraîné l’émission de 119 800 actions ordinaires par tranche, aucun prix en espèces n’a été déclaré pour la valeur du produit dérivé, et 345 316 actions ordinaires ont été déclarées comme détenues effectivement après les opérations. Le formulaire 4/A corrige une divulgation antérieure involontaire du prix d’exercice. Les remarques indiquent que, sur la base des actions en circulation déclarées par l’émetteur de 51 806 497, la participation du déclarant est passée en dessous de 10%.

Title 19 Promis hat Kauf-Warrants ausgeübt, um Stammaktien von ProMIS Neurosciences (PMN) zu erwerben. Am 25.07.2025 übte die meldende Person 119.800 Tranche-A-Warrants, 119.800 Tranche-B-Warrants und 119.800 Tranche-C-Warrants aus, jeweils zum Umtausch in eine Stammaktie zu einem bereinigten Ausübungspreis von $0.83518 pro Aktie (ursprüngliche Ausübungspreise: A und B $2,02, C $2,50). Jede Ausübung führte zur Ausgabe von 119.800 Stammaktien pro Tranche, es wurde kein Bargeldbetrag für den Derivatewert gemeldet, und nach den Transaktionen wurden 345.316 Stammaktien als wirtschaftlich gehalten gemeldet. Das Formular 4/A korrigiert eine versehentliche frühere Angabe des Ausübungspreises. In den Bemerkungen heißt es, dass die Beteiligung der meldenden Person anhand der vom Emittenten berichteten ausstehenden Aktien von 51.806.497 unter 10% gefallen ist.

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).
1. Name and Address of Reporting Person*
Title 19 Promis

(Last) (First) (Middle)
C/O TROVE,
40 BROAD STREET, 8TH FLOOR

(Street)
BOSTON MA 02109

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
ProMIS Neurosciences Inc. [ PMN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
Officer (give title below) X Other (specify below)
See Remarks section.
3. Date of Earliest Transaction (Month/Day/Year)
07/25/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
07/29/2025
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
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
Tranche A Common Share Purchase Warrants (1)(2) 07/25/2025 X 119,800 (1) (1) Common Shares 119,800 $0 345,316 D
Tranche B Common Share Purchase Warrants (2)(3) 07/25/2025 X 119,800 (3) (3) Common Shares 119,800 $0 345,316 D
Tranche C Common Share Purchase Warrants (2)(4) 07/25/2025 X 119,800 (4) (4) Common Shares 119,800 $0 345,316 D
Explanation of Responses:
1. On July 25, 2025, Title 19 Promis exercised 119,800 Tranche A purchase warrants, each exercisable to purchase one Common Share. These warrants were exercisable at an exercise price of $2.02 per warrant share; however, following an offer by Title 19 Promis and an acceptance by the Issuer, were exercised at an exercise price of $0.83518 per share. The remainder of these warrants are currently exercisable and expire on the earlier of (i) 18 months of the issue date and (ii) within 60 days of the public announcement via press release or the filing of a Current Report on Form 8-K of 6-month data from the cohorts treated with single ascending doses of PMN310.
2. This amendment is being filed to report that the price at which the Tranche A purchase warrants, Tranche B purchase warrants and Tranche C purchase warrants were exercised was inadvertently disclosed as $0.83158 instead of $0.83518.
3. On July 25, 2025, Title 19 Promis exercised 119,800 Tranche B purchase warrants, each exercisable to purchase one Common Share. These warrants were exercisable at an exercise price of $2.02 per warrant share; however, following an offer by Title 19 Promis and an acceptance by the Issuer, were exercised at an exercise price of $0.83518 per share. The remainder of these warrants are currently exercisable and expire on the earlier of (i) 30 months of the issue date and (ii) within 60 days of the public announcement via press release or the filing of a Current Report on Form 8-K of 12-month data from the cohorts treated with single ascending doses of PMN310.
4. On July 25, 2025, Title 19 Promis exercised 119,800 Tranche C purchase warrants, each exercisable to purchase one Common Share. These warrants were exercisable at an exercise price of $2.50 per warrant share; however, following an offer by Title 19 Promis and an acceptance by the Issuer, were exercised at an exercise price of $0.83518 per share. The remainder of these warrants are currently exercisable and expire on July 31, 2029.
Remarks:
The Issuer's Form 10-Q filed on August 13, 2025 provides that as of such date, the Issuer had 51,806,497 Common Shares outstanding. Based on this number and other shares included in the denominator of the calculation of the Reporting Person's ownership, the Reporting Person's ownership has dropped below 10% as of the date of filing this amended Form 4. However, based on the publicly available number of outstanding shares reported prior to when this Form 4 was originally filed, the Reporting Person held more than 10% at such time the Form 4 was originally filed.
Title 19 Promis By: /s/ Michael S. Gordon, Manager 08/14/2025
** 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

What warrants did Title 19 Promis exercise in the Form 4/A for PMN?

Title 19 Promis exercised 119,800 Tranche A, 119,800 Tranche B, and 119,800 Tranche C purchase warrants, each exercisable for one common share.

At what price were the PMN warrants exercised?

All exercised warrants were accepted by the issuer at an adjusted exercise price of $0.83518 per share.

How many common shares did the reporting person beneficially own after these transactions?

The Form reports the reporting person beneficially owned 345,316 common shares following the reported transactions.

Did the filing amend any previously reported information?

Yes. The amendment corrects a previously misstated exercise price (originally disclosed as $0.83158) to $0.83518.

Did the reporting person remain a 10% owner after the amendment?

No. Based on the issuer's reported outstanding shares of 51,806,497, the reporting person’s ownership fell below 10% as noted in the remarks.
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