organization · Reporting owner

ICS OPPORTUNITIES II LLC

Disclosed activity across 1 company

Tapewire entity: 47116
SEC CIK: 0001783647

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Latest disclosed role at each company.

No relationships currently tracked through insider filings.

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Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

No balances currently tracked through insider filings.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Faeth Therapeutics, Inc.

Report date April 02, 2026 · Filed May 15, 2026

Jointly reported with MILLENNIUM MANAGEMENT LLC, MILLENNIUM GROUP MANAGEMENT LLC, ENGLANDER ISRAEL A

Section 16 reporting ended · disclosed 2026-05-15. Current position is not established by this disclosure.

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	IndirectSee Footnote	144,974	Reported balance After 2026-04-02 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2026-04-02 · Purchase · Acquired 26 · Balance 144,974 F1: Represents volume-weighted average price ("VWAP") of purchases of 26 shares of common stock ("Common Stock"), par value $0.0001 per share, of Sensei Biotherapeutics, Inc. (the "Company") on April 2, 2026 at prices ranging from $32.90 to $33.62. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting persons will provide full information regarding the number of shares purchased or sold by the reporting person at each separate price within each range represented by a VWAP disclosed herein. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	144,974	Reported balance After 2026-04-02 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2026-04-02 · Purchase · Acquired 1,276 · Balance 144,974 F4: Represents VWAP of purchases of 1,276 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $33.97 to $34.90. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	144,974	Reported balance After 2026-04-02 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2026-04-02 · Purchase · Acquired 701 · Balance 144,974 F5: Represents VWAP of purchases of 701 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $35.4481 to $35.91. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	144,974	Reported balance After 2026-04-02 transaction · row 4 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 4 · 2026-04-02 · Sale · Disposed 3,099 · Balance 144,974 F6: Represents VWAP of sales of 3,099 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $30.1332 to $31.1212. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	144,974	Reported balance After 2026-04-02 transaction · row 5 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 5 · 2026-04-02 · Sale · Disposed 1,265 · Balance 144,974 F7: Represents VWAP of sales of 1,265 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $31.21 to $32.15. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	144,974	Reported balance After 2026-04-02 transaction · row 6 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 6 · 2026-04-02 · Sale · Disposed 1,794 · Balance 144,974 F8: Represents VWAP of sales of 1,794 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $32.22 to $33.1251. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	144,974	Reported balance After 2026-04-02 transaction · row 7 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 7 · 2026-04-02 · Sale · Disposed 374 · Balance 144,974 F9: Represents VWAP of sales of 374 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $33.23 to $33.45. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	144,974	Reported balance After 2026-04-02 transaction · row 8 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 8 · 2026-04-02 · Sale · Disposed 1,134 · Balance 144,974 F10: Represents VWAP of sales of 1,134 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $34.40 to $35.25. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	141,029	Reported balance After 2026-04-06 transaction · row 9 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 9 · 2026-04-06 · Purchase · Acquired 1,104 · Balance 141,029 F11: Represents purchases of 1,104 shares of the Company's Common Stock on April 6, 2026 at $31.02 per share. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	141,029	Reported balance After 2026-04-06 transaction · row 10 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 10 · 2026-04-06 · Sale · Disposed 1,214 · Balance 141,029 F12: Represents VWAP of sales of 1,214 shares of the Company's Common Stock on April 6, 2026 at prices ranging from $30.64 to $31.345. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	141,029	Reported balance After 2026-04-06 transaction · row 11 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 11 · 2026-04-06 · Sale · Disposed 45 · Balance 141,029 F13: Represents VWAP of sales of 45 shares of the Company's Common Stock on April 6, 2026 at prices ranging from $31.80 to $32.17. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	133,986	Reported balance After 2026-04-07 transaction · row 12 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 12 · 2026-04-07 · Purchase · Acquired 1,108 · Balance 133,986 F14: Represents VWAP of purchases of 1,108 shares of the Company's Common Stock on April 7, 2026 at $33.38 per share. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	133,986	Reported balance After 2026-04-07 transaction · row 13 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 13 · 2026-04-07 · Sale · Disposed 2,115 · Balance 133,986 F15: Represents VWAP of sales of 2,115 shares of the Company's Common Stock on April 7, 2026 at prices ranging from $28.5071 to $29.3167. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	133,986	Reported balance After 2026-04-07 transaction · row 14 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 14 · 2026-04-07 · Sale · Disposed 205 · Balance 133,986 F16: Represents VWAP of sales of 205 shares of the Company's Common Stock on April 7, 2026 at prices ranging from $29.695 to $30.50. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	133,986	Reported balance After 2026-04-07 transaction · row 15 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 15 · 2026-04-07 · Sale · Disposed 4,423 · Balance 133,986 F17: Represents VWAP of sales of 4,423 shares of the Company's Common Stock on April 7, 2026 at prices ranging from $30.9852 to $31.813. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	133,986	Reported balance After 2026-04-07 transaction · row 16 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 16 · 2026-04-07 · Sale · Disposed 300 · Balance 133,986 F18: Represents VWAP of sales of 300 shares of the Company's Common Stock on April 7, 2026 at prices ranging from $32.0625 to $32.615. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee Footnote	133,986	Reported balance After 2026-04-07 transaction · row 17 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 17 · 2026-04-07 · Sale · Disposed 1,108 · Balance 133,986 F19: Represents sales of 1,108 shares of the Company's Common Stock on April 7, 2026 at $33.38 per share. F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.

Filing footnotes · ownership attribution and instrument terms

F1: Represents volume-weighted average price ("VWAP") of purchases of 26 shares of common stock ("Common Stock"), par value $0.0001 per share, of Sensei Biotherapeutics, Inc. (the "Company") on April 2, 2026 at prices ranging from $32.90 to $33.62. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting persons will provide full information regarding the number of shares purchased or sold by the reporting person at each separate price within each range represented by a VWAP disclosed herein.

F2: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2.

F3: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any.

F4: Represents VWAP of purchases of 1,276 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $33.97 to $34.90.

F5: Represents VWAP of purchases of 701 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $35.4481 to $35.91.

F6: Represents VWAP of sales of 3,099 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $30.1332 to $31.1212.

F7: Represents VWAP of sales of 1,265 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $31.21 to $32.15.

F8: Represents VWAP of sales of 1,794 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $32.22 to $33.1251.

F9: Represents VWAP of sales of 374 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $33.23 to $33.45.

F10: Represents VWAP of sales of 1,134 shares of the Company's Common Stock on April 2, 2026 at prices ranging from $34.40 to $35.25.

F11: Represents purchases of 1,104 shares of the Company's Common Stock on April 6, 2026 at $31.02 per share.

F12: Represents VWAP of sales of 1,214 shares of the Company's Common Stock on April 6, 2026 at prices ranging from $30.64 to $31.345.

F13: Represents VWAP of sales of 45 shares of the Company's Common Stock on April 6, 2026 at prices ranging from $31.80 to $32.17.

F14: Represents VWAP of purchases of 1,108 shares of the Company's Common Stock on April 7, 2026 at $33.38 per share.

F15: Represents VWAP of sales of 2,115 shares of the Company's Common Stock on April 7, 2026 at prices ranging from $28.5071 to $29.3167.

F16: Represents VWAP of sales of 205 shares of the Company's Common Stock on April 7, 2026 at prices ranging from $29.695 to $30.50.

F17: Represents VWAP of sales of 4,423 shares of the Company's Common Stock on April 7, 2026 at prices ranging from $30.9852 to $31.813.

F18: Represents VWAP of sales of 300 shares of the Company's Common Stock on April 7, 2026 at prices ranging from $32.0625 to $32.615.

F19: Represents sales of 1,108 shares of the Company's Common Stock on April 7, 2026 at $33.38 per share.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
March 26, 2026 Filed May 15, 2026 20:22 UTC	Faeth Therapeutics, Inc. SNSE · Entity 5029	PurchaseCommon Stock	778	$27.23	$21,182.37	Disclosure SEC source: 0001104659-26-062603 · tm2614687-2_4seq1.xml · nonDerivative · entry 1 MILLENNIUM MANAGEMENT LLC · CIK 0001273087 · 10% owner ICS OPPORTUNITIES II LLC · CIK 0001783647 · 10% owner MILLENNIUM GROUP MANAGEMENT LLC · CIK 0001446830 · 10% owner ENGLANDER ISRAEL A · CIK 0001017456 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See footnote Disclosed balance after: 131,370 F1 · price: Represents volume-weighted average price ("VWAP") of purchases of 778 shares of common stock ("Common Stock"), par value $0.0001 per share, of Sensei Biotherapeutics, Inc. (the "Company") on March 26, 2026 at prices ranging from $26.66 to $27.62. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting persons will provide full information regarding the number of shares purchased or sold by the reporting person at each separate price within each range represented by a VWAP disclosed herein. F2 · balance_after: In each case, the number of shares of the Company's Common Stock disclosed in column 5 is the number of shares of the Company's Common Stock beneficially owned by Millennium Management LLC at the conclusion of the transactions on the date disclosed in the corresponding entry in column 2. F3 · ownership.nature: The transactions in the Company's Common Stock reported herein were made by ICS Opportunities II LLC or other trading entities, in each case subject to voting control and investment discretion by Millennium Management LLC, Millennium Group Management LLC (the managing member of Millennium Management LLC) and Israel A. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). Each reporting person disclaims beneficial ownership of the shares of the Company's Common Stock disclosed herein except to the extent of such reporting person's pecuniary interest therein, if any. Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.