Insider Transactions

Tseng Saria

EVP & General Counsel

In the last 12 months, Tseng Saria filed 73 SEC Form 4 transactions across 1 issuer — $0 in open-market purchases and $164.2M in open-market sales. 42% of these transactions were executed under a pre-scheduled Rule 10b5-1 trading plan.

Issuers Filed For By open-market buy volume

Recent Form 4 Filings Most recent 73 of 73 (1-year window)

Date Ticker Company Type SEC Code Value Shares Price
2026-05-27 MPWR MONOLITHIC POWER SYSTEMS INC Sell S $12.9M 7,565 $1700.00
2026-05-22 MPWR MONOLITHIC POWER SYSTEMS INC Other G $0 200 $0.00
2026-05-22 MPWR MONOLITHIC POWER SYSTEMS INC Sell S $7.9M 5,000 $1586.43
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $709.2K 560 $1266.48
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $457.3K 360 $1270.29
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $307.1K 240 $1279.55
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $154.5K 120 $1287.12
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $516.8K 400 $1292.08
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $1.0M 800 $1302.52
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $1.7M 1,279 $1308.30
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $5.6M 4,244 $1312.82
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $1.1M 840 $1319.25
2026-04-08 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $158.6K 120 $1321.94
2026-04-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $278.2K 244 $1139.96
2026-04-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $636.3K 556 $1144.42
2026-04-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $551.5K 480 $1149.05
2026-04-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $649.4K 560 $1159.62
2026-04-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $797.3K 684 $1165.66
2026-04-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $2.4M 2,036 $1170.38
2026-04-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $2.0M 1,680 $1176.35
2026-04-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $1.6M 1,396 $1179.50
2026-04-01 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $651.6K 576 $1131.24
2026-04-01 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $208.3K 184 $1132.15
2026-04-01 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $181.5K 160 $1134.14
2026-04-01 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $213.6K 188 $1135.91
2026-04-01 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $332.0K 292 $1136.99
2026-03-30 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $5.2M 5,154 $1000.81
2026-03-30 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $9.1M 9,080 $1005.18
2026-03-30 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $3.4M 3,360 $1009.63
2026-03-30 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $3.2M 3,194 $1017.22
2026-03-30 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $2.3M 2,200 $1023.00
2026-03-30 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $2.5M 2,440 $1029.21
2026-03-30 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $171.9K 166 $1035.60
2026-03-30 MPWR MONOLITHIC POWER SYSTEMS INC Sell 10b5-1 S $83.3K 80 $1041.12
2026-02-06 MPWR MONOLITHIC POWER SYSTEMS INC Sell $26.8M 22,875 $1171.16
2026-02-03 MPWR MONOLITHIC POWER SYSTEMS INC Grant $0 57,170 $0.00
2025-12-24 MPWR MONOLITHIC POWER SYSTEMS INC Grant $0 1,000 $0.00
2025-12-24 MPWR MONOLITHIC POWER SYSTEMS INC Grant $0 1,000 $0.00
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $221.5K 240 $922.78
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.1M 1,200 $923.54
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.2M 1,327 $924.32
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.0M 1,126 $925.55
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $9.6M 10,360 $926.02
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.7M 1,845 $927.41
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $913.7K 984 $928.60
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $2.1M 2,238 $929.29
2025-11-26 MPWR MONOLITHIC POWER SYSTEMS INC Sell $632.7K 680 $930.48
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $344.4K 385 $894.54
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.5M 1,625 $895.63
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.9M 2,066 $896.37
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $676.7K 754 $897.54
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $130.3K 145 $898.38
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $287.8K 320 $899.37
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $311.5K 346 $900.41
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $793.4K 880 $901.58
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $108.2K 120 $902.07
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $144.6K 160 $903.54
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $180.9K 200 $904.39
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $144.9K 160 $905.32
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $246.5K 272 $906.33
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $9.3M 10,200 $907.21
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $806.7K 888 $908.49
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $505.6K 556 $909.35
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $326.8K 359 $910.42
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $295.5K 324 $911.92
2025-11-25 MPWR MONOLITHIC POWER SYSTEMS INC Sell $219.0K 240 $912.30
2025-10-30 MPWR MONOLITHIC POWER SYSTEMS INC Grant $59.8M 54,543 $1096.63
2025-10-25 MPWR MONOLITHIC POWER SYSTEMS INC Grant $0 135,520 $0.00
2025-10-24 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.4M 1,300 $1087.62
2025-10-16 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.5M 1,499 $1021.26
2025-10-16 MPWR MONOLITHIC POWER SYSTEMS INC Sell $1.4M 1,313 $1030.81
2025-10-15 MPWR MONOLITHIC POWER SYSTEMS INC Sell $14.3M 14,028 $1016.18
2025-09-18 MPWR MONOLITHIC POWER SYSTEMS INC Sell $13.3M 14,510 $914.45

Methodology & FAQ

How These Filings Are Sourced

All transactions on this page are sourced directly from SEC EDGAR. A complete description of the open-market vs grant distinction, the Rule 10b5-1 plan-reference heuristic, and the per-insider name matching is documented in the Methodology.

What companies does Tseng Saria file Form 4 disclosures for?

Tseng Saria has filed SEC Form 4 transactions for 1 issuer in the last 12 months: MONOLITHIC POWER SYSTEMS INC (MPWR).

What does the 10b5-1 badge mean on these transactions?

Rule 10b5-1 is an SEC rule that lets insiders schedule trades in advance under a written plan, providing an affirmative defense against insider-trading allegations as long as the plan was adopted in good faith and not while in possession of material non-public information. Of Tseng Saria's 73 reported transactions in the last 12 months, 31 (42%) reference a 10b5-1 trading plan in the Form 4 footnotes.

Are these all the transactions Tseng Saria has executed?

This page shows SEC Form 4 transactions on record in Pactolio's tracked universe for the last 12 months. Form 4 only covers transactions in registered classes of equity at issuers where the person qualifies as an insider (officer, director, or 10% beneficial owner). Trades in funds, foreign issuers, or non-insider positions are not disclosed under Form 4 and are not included here.