THEODORE BLEGEN - 01 Mar 2024 Form 4 Insider Report for MONOLITHIC POWER SYSTEMS INC (MPWR)

Role
CFO
Signature
/s/ Saria Tseng, attorney-in-fact for Mr. Bernie Blegen
Issuer symbol
MPWR
Transactions as of
01 Mar 2024
Transactions value $
-$1,814,388
Form type
4
Filing time
04 Mar 2024, 11:07:52 UTC
Previous filing
09 Feb 2024
Next filing
03 Apr 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MPWR Common Stock Sale -$143,670 -200 -0.24% $718.35 82,973 01 Mar 2024 Direct F1
transaction MPWR Common Stock Sale -$143,896 -200 -0.24% $719.48 82,773 01 Mar 2024 Direct F2
transaction MPWR Common Stock Sale -$57,660 -80 -0.1% $720.75 82,693 01 Mar 2024 Direct
transaction MPWR Common Stock Sale -$129,828 -180 -0.22% $721.27 82,513 01 Mar 2024 Direct F3
transaction MPWR Common Stock Sale -$57,953 -80 -0.1% $724.42 82,433 01 Mar 2024 Direct
transaction MPWR Common Stock Sale -$72,551 -100 -0.12% $725.51 82,333 01 Mar 2024 Direct
transaction MPWR Common Stock Sale -$183,832 -253 -0.31% $726.61 82,080 01 Mar 2024 Direct F4
transaction MPWR Common Stock Sale -$361,517 -497 -0.61% $727.4 81,583 01 Mar 2024 Direct F5
transaction MPWR Common Stock Sale -$474,240 -651 -0.8% $728.48 80,932 01 Mar 2024 Direct F6
transaction MPWR Common Stock Sale -$108,649 -149 -0.18% $729.19 80,783 01 Mar 2024 Direct F7
transaction MPWR Common Stock Sale -$43,920 -60 -0.07% $732.01 80,723 01 Mar 2024 Direct
transaction MPWR Common Stock Sale -$36,668 -50 -0.06% $733.37 80,723 01 Mar 2024 Direct F8
holding MPWR Common Stock 5,331 01 Mar 2024 Irrevocable Trust FBO Theodore F. Blegen
holding MPWR Common Stock 5,331 01 Mar 2024 Irrevocable Trust FBO Sarah N. Blegen
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $718.26 to $718.44. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F2 The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $719.35 to $719.60. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F3 The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $721.09 to $721.54. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F4 The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $726.32 to $726.95. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F5 The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $727.00 to $727.57. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F6 The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $728.00 to $728.95. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F7 The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $729.04 to $729.49. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F8 Ending balance includes 50 shares acquired on February 15, 2024 through the Company's qualified ESPP program.