Abiopharma

🔍 Lie Sean (Executive)

Company: Cerebras Systems Inc. (CBRS)

Report Date: 2026-08-20

Detailed Transactions and Holdings:

• Acquired 696,798 shares of Class A Common Stock (Direct)
  Date: 2026-08-20 | Code: C | equity_swap_involved: 0 | shares_owned_after: 1,292,247.00 | transaction_form_type: 4 | Footnotes: F1, F1
• Sold 213,074 shares of Class A Common Stock (Direct)
  Date: 2026-08-20 | Code: G | equity_swap_involved: 0 | shares_owned_after: 1,079,173.00 | transaction_form_type: 4 | Footnotes: F2
• Sold 11,706 shares of Class A Common Stock at $203.78 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 1,067,467.00 | transaction_form_type: 4 | Footnotes: F3, F4
• Sold 47,766 shares of Class A Common Stock at $204.87 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 1,019,701.00 | transaction_form_type: 4 | Footnotes: F3, F5
• Sold 133,383 shares of Class A Common Stock at $205.67 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 886,318.00 | transaction_form_type: 4 | Footnotes: F3, F6
• Sold 93,017 shares of Class A Common Stock at $206.67 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 793,301.00 | transaction_form_type: 4 | Footnotes: F3, F7
• Sold 108,507 shares of Class A Common Stock at $207.68 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 684,794.00 | transaction_form_type: 4 | Footnotes: F3, F8
• Sold 119,311 shares of Class A Common Stock at $208.69 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 565,483.00 | transaction_form_type: 4 | Footnotes: F3, F9
• Sold 114,976 shares of Class A Common Stock at $209.86 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 450,507.00 | transaction_form_type: 4 | Footnotes: F3, F10
• Sold 46,214 shares of Class A Common Stock at $210.56 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 404,293.00 | transaction_form_type: 4 | Footnotes: F3, F11
• Sold 10,715 shares of Class A Common Stock at $211.42 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 393,578.00 | transaction_form_type: 4 | Footnotes: F3, F12
• Sold 24,652 shares of Class A Common Stock at $212.64 per share (Direct)
  Date: 2026-08-20 | Code: S | equity_swap_involved: 0 | shares_owned_after: 368,926.00 | transaction_form_type: 4 | Footnotes: F3, F13
• Acquired 16,293 shares of Class A Common Stock (Direct)
  Date: 2026-08-21 | Code: C | equity_swap_involved: 0 | shares_owned_after: 385,219.00 | transaction_form_type: 4
• Sold 16,293 shares of Class A Common Stock at $210.01 per share (Direct)
  Date: 2026-08-21 | Code: S | equity_swap_involved: 0 | shares_owned_after: 368,926.00 | transaction_form_type: 4 | Footnotes: F3, F14
• Sold 308,236 shares of Stock Option at $2.4 per share (Derivative)
  Date: 2026-08-20 | Code: M | Expires: 2029-05-13 | equity_swap_involved: 0 | shares_owned_after: 41,764.00 | transaction_form_type: 4 | Footnotes: F15
• Sold 138,236 shares of Stock Option at $2.72 per share (Derivative)
  Date: 2026-08-20 | Code: M | Expires: 2030-12-07 | equity_swap_involved: 0 | shares_owned_after: 36,764.00 | transaction_form_type: 4 | Footnotes: F15
• Sold 87,326 shares of Stock Option at $7.89 per share (Derivative)
  Date: 2026-08-20 | Code: M | Expires: 2032-01-11 | equity_swap_involved: 0 | shares_owned_after: 12,674.00 | transaction_form_type: 4 | Footnotes: F15
• Sold 114,455 shares of Stock Option at $5.02 per share (Derivative)
  Date: 2026-08-20 | Code: M | Expires: 2033-02-13 | equity_swap_involved: 0 | shares_owned_after: 35,545.00 | transaction_form_type: 4 | Footnotes: F16
• Sold 48,545 shares of Stock Option at $5.48 per share (Derivative)
  Date: 2026-08-20 | Code: M | Expires: 2034-02-06 | equity_swap_involved: 0 | shares_owned_after: 351,455.00 | transaction_form_type: 4 | Footnotes: F17
• Acquired 696,798 shares of Class B Common Stock (Derivative)
  Date: 2026-08-20 | Code: M | equity_swap_involved: 0 | shares_owned_after: 8,279,790.00 | transaction_form_type: 4 | Footnotes: F1, F1, F1, F1
• Sold 696,798 shares of Class B Common Stock (Derivative)
  Date: 2026-08-20 | Code: C | equity_swap_involved: 0 | shares_owned_after: 7,582,992.00 | transaction_form_type: 4 | Footnotes: F1, F1, F1
• Sold 16,293 shares of Stock Option at $5.48 per share (Derivative)
  Date: 2026-08-21 | Code: M | Expires: 2034-02-06 | equity_swap_involved: 0 | shares_owned_after: 335,162.00 | transaction_form_type: 4 | Footnotes: F17
• Acquired 16,293 shares of Class B Common Stock (Derivative)
  Date: 2026-08-21 | Code: M | equity_swap_involved: 0 | shares_owned_after: 7,599,285.00 | transaction_form_type: 4 | Footnotes: F1, F1, F1
• Sold 16,293 shares of Class B Common Stock (Derivative)
  Date: 2026-08-21 | Code: C | equity_swap_involved: 0 | shares_owned_after: 7,582,992.00 | transaction_form_type: 4 | Footnotes: F1, F1, F1
• Holds 180,600 shares of Class B Common Stock (Derivative)
  Date: 2026-08-20 | Code: H | shares_owned_after: 180,600.00 | Footnotes: F1, F1, F1

Footnotes:

• F1: The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date.
• F2: The reporting person transferred 213,074 shares of the Issuer's common stock to a donor-advised fund sponsored by a charitable organization under Section 501(c)(3) of the Internal Revenue Code.
• F3: The sale reported on this Form 4 represents shares sold by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 20, 2026.
• F4: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $203.18 to $204.17, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F5: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $204.18 to $205.17, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F6: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.18 to $206.17, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F7: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.18 to $207.17, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F8: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.18 to $208.17, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F9: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.18 to $209.17, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F10: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.18 to $210.17, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F11: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.18 to $211.17, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F12: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.21 to $212.12, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F13: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $212.22 to $213.16, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F14: The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.00 to $210.16, inclusive. Upon request by the staff of the Securities and Exchange commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.
• F15: The stock option is fully vested and exercisable.
• F16: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2023.
• F17: The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024.