Abiopharma

🔍 Vassallo Steven (Executive)

Company: Cerebras Systems Inc. (CBRS)

Report Date: 2026-06-24

Detailed Transactions and Holdings:

• Acquired 1,391,131 shares of Class A Common Stock (Direct)
  Date: 2026-06-24 | Code: C | equity_swap_involved: 0 | shares_owned_after: 1,391,131.00 | transaction_form_type: 4 | Footnotes: F1, F2
• Acquired 29,963 shares of Class A Common Stock (Direct)
  Date: 2026-06-24 | Code: C | equity_swap_involved: 0 | shares_owned_after: 29,963.00 | transaction_form_type: 4 | Footnotes: F1, F3
• Acquired 109,141 shares of Class A Common Stock (Direct)
  Date: 2026-06-24 | Code: C | equity_swap_involved: 0 | shares_owned_after: 109,141.00 | transaction_form_type: 4 | Footnotes: F1
• Acquired 347,782 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: C | equity_swap_involved: 0 | shares_owned_after: 1,738,913.00 | transaction_form_type: 4 | Footnotes: F1, F2
• Acquired 7,490 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: C | equity_swap_involved: 0 | shares_owned_after: 37,453.00 | transaction_form_type: 4 | Footnotes: F1, F3
• Acquired 27,285 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: C | equity_swap_involved: 0 | shares_owned_after: 136,426.00 | transaction_form_type: 4 | Footnotes: F1, F4
• Sold 1,738,913 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: J | equity_swap_involved: 0 | transaction_form_type: 4 | Footnotes: F5, F2
• Sold 37,453 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: J | equity_swap_involved: 0 | transaction_form_type: 4 | Footnotes: F6, F3
• Sold 136,426 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: J | equity_swap_involved: 0 | transaction_form_type: 4 | Footnotes: F7, F4
• Acquired 449,885 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: J | equity_swap_involved: 0 | shares_owned_after: 449,885.00 | transaction_form_type: 4 | Footnotes: F8, F9
• Sold 449,885 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: J | equity_swap_involved: 0 | transaction_form_type: 4 | Footnotes: F10, F9
• Acquired 1,368 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: J | equity_swap_involved: 0 | shares_owned_after: 1,368.00 | transaction_form_type: 4 | Footnotes: F11, F12
• Acquired 99,599 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: J | equity_swap_involved: 0 | shares_owned_after: 99,599.00 | transaction_form_type: 4 | Footnotes: F13, F14
• Acquired 50,944 shares of Class A Common Stock (Direct)
  Date: 2026-08-14 | Code: J | equity_swap_involved: 0 | shares_owned_after: 50,944.00 | transaction_form_type: 4 | Footnotes: F15, F16
• Sold 6,081 shares of Class A Common Stock at $216.38 per share (Direct)
  Date: 2026-08-14 | Code: S | equity_swap_involved: 0 | shares_owned_after: 93,518.00 | transaction_form_type: 4 | Footnotes: F17, F14
• Sold 16,671 shares of Class A Common Stock at $217.47 per share (Direct)
  Date: 2026-08-14 | Code: S | equity_swap_involved: 0 | shares_owned_after: 76,847.00 | transaction_form_type: 4 | Footnotes: F18, F14
• Sold 11,834 shares of Class A Common Stock at $218.46 per share (Direct)
  Date: 2026-08-14 | Code: S | equity_swap_involved: 0 | shares_owned_after: 65,013.00 | transaction_form_type: 4 | Footnotes: F19, F14
• Sold 14,323 shares of Class A Common Stock at $219.41 per share (Direct)
  Date: 2026-08-14 | Code: S | equity_swap_involved: 0 | shares_owned_after: 50,690.00 | transaction_form_type: 4 | Footnotes: F20, F14
• Sold 1,091 shares of Class A Common Stock at $219.97 per share (Direct)
  Date: 2026-08-14 | Code: S | equity_swap_involved: 0 | shares_owned_after: 49,599.00 | transaction_form_type: 4 | Footnotes: F21, F14
• Sold 1,391,131 shares of Class B Common Stock (Derivative)
  Date: 2026-06-24 | Code: C | equity_swap_involved: 0 | shares_owned_after: 12,520,174.00 | transaction_form_type: 4 | Footnotes: F1, F1, F22, F22, F2
• Sold 29,963 shares of Class B Common Stock (Derivative)
  Date: 2026-06-24 | Code: C | equity_swap_involved: 0 | shares_owned_after: 269,664.00 | transaction_form_type: 4 | Footnotes: F1, F1, F22, F22, F3
• Sold 109,141 shares of Class B Common Stock (Derivative)
  Date: 2026-06-24 | Code: C | equity_swap_involved: 0 | shares_owned_after: 982,270.00 | transaction_form_type: 4 | Footnotes: F1, F1, F22, F22, F4
• Sold 347,782 shares of Class B Common Stock (Derivative)
  Date: 2026-08-14 | Code: C | equity_swap_involved: 0 | shares_owned_after: 12,172,392.00 | transaction_form_type: 4 | Footnotes: F1, F1, F22, F22, F2
• Sold 7,490 shares of Class B Common Stock (Derivative)
  Date: 2026-08-14 | Code: C | equity_swap_involved: 0 | shares_owned_after: 262,174.00 | transaction_form_type: 4 | Footnotes: F1, F1, F22, F22, F3
• Sold 27,285 shares of Class B Common Stock (Derivative)
  Date: 2026-08-14 | Code: C | equity_swap_involved: 0 | shares_owned_after: 954,985.00 | transaction_form_type: 4 | Footnotes: F1, F1, F22, F22, F4

Footnotes:

• F1: Each share of Class B Common Stock was converted into one share of Class A Common Stock for no additional consideration.
• F2: Securities are directly held by Foundation Capital VIII, L.P. ("FC8"). Foundation Capital Management Co. VIII, L.L.C. ("FCM8") is the general partner of FC8. The Reporting Person is a manager of FCM8 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.
• F3: Securities are directly held by Foundation Capital VIII Principals Fund, L.L.C. ("FC8P"). Foundation Capital Management Co. VIII, L.L.C. ("FCM8") is the manager of FC8P. The Reporting Person is a manager of FCM8 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.
• F4: Securities are directly held by Foundation Capital Leadership Fund II, L.P. ("FCLF2"). Foundation Capital Management Co. LF II, L.L.C. ("FCMLF2") is the general partner of FCLF2. The Reporting Person is a manager of FCMLF2 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.
• F5: Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FC8 to its general partner and limited partners without additional consideration.
• F6: Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FC8P to its general partner and limited partners without additional consideration.
• F7: Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FCLF2 to its general partner and limited partners without additional consideration.
• F8: Represents receipt of shares in the distributions in kind described in footnotes (5) and (6).
• F9: Securities are directly held by FCM8. The Reporting Person is a manager of FCM8 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.
• F10: Represents a pro rata, in-kind distribution, and not a purchase or sale of securities, by FCM8 to its members without additional consideration.
• F11: Represents receipt of shares in the distribution in kind described in footnote (7).
• F12: Securities are directly held by FCMLF2. The Reporting Person is a manager of FCMLF2 and may be deemed to beneficially own such shares. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.
• F13: Represents receipt of shares in the distributions in kind described in footnotes (6) and (10).
• F14: The securities are held by a revocable family trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his proportionate pecuniary interest therein.
• F15: Represents receipt of shares in the distribution in kind described in footnote (10).
• F16: The securities are held by an irrevocable GST trust, of which the Reporting Person is a co-trustee. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
• F17: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $215.79 to $216.78 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
• F18: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $216.87 to $217.86 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
• F19: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $217.90 to $218.89 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
• F20: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $218.90 to $219.89 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
• F21: The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $219.90 to $220.15 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
• F22: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder and does not expire.