Reporting owner · CIK 0001583179

Luu Michael B

Visual SEC Form 4 history across 1 companies, 11 transactions and 4 filings.

SCS, CRSVP Corp Svce & Chief Risk OfCALIFORNIA WATER SERVICE GROUP
Open-market mix
Latest filingSep 08, 2026, 08:26 PM
Filings4Form 4 records
Buying$00 purchases
Selling$32.9K1 sales
Net value−$32.9KBuys minus sells
Companies11 securities
Most recentSep 05, 2026withholding

Open-market buy performance

90-day forward return on this insider's open-market purchases

90d forward
Forward return is not available yet

We compute this from each buy's stock performance 90 days after the transaction. The price history is still being populated for this insider's their open-market buys, so the average and median will appear here once the daily price refresh has covered the relevant trading days.

Monthly open-market activity

Reported purchase and sale transaction counts

Buys Sells
530-3-51Mar 26Sep 26

Net value flow

Buys minus sells

Mar 26
−$32.9K
Sep 26
$0

Transaction texture

Ownership and ticket size

Average P/S size$32.9K
Median P/S size$32.9K
Direct11
Indirect0
Sep 05, 2026withholding

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern1Direct Ownershipfiling-context9

Latest Form 4 facts

Quick context from source filings

Latest transaction

sale at CALIFORNIA WATER SERVICE GROUP on Mar 20, 2026 valued at $32,945.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Latest sale

sale at CALIFORNIA WATER SERVICE GROUP on Mar 20, 2026 valued at $32,945.

Review SEC filing

Associated companies

Visual map of known reporting history

CWTCALIFORNIA WATER SERVICE GROUP11 transactions · latest Sep 08, 2026, 08:26 PM
TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date
CWTLuu Michael B
SCSCR
withholding68-$340kF
Direct Ownership
0.0%09/0809/05
CWTLuu Michael B
SCSCR
withholding70-$350kF
Direct Ownership
0.0%09/0809/04
CWTLuu Michael B
SVCSCR
sale740-$3.29MS
Cluster Selling Direct Ownership
+2.1%03/2403/20
CWTLuu Michael B
SCSCR
withholding59-$268kF
Direct Ownership
+0.3%03/0903/07
CWTLuu Michael B
SCSCR
withholding115-$524kF
Direct Ownership
+0.3%03/0903/07
CWTLuu Michael B
SCSCR
grant205$0A
Direct Ownership
+0.3%03/0903/07
CWTLuu Michael B
SCSCR
withholding504-$2.29MF
Direct Ownership
+0.3%03/0903/07
CWTLuu Michael B
SCSCR
grant900$0A
Direct Ownership
+0.3%03/0903/07
CWTLuu Michael B
SCSCR
withholding76-$347kF
Direct Ownership
+0.3%03/0903/05
CWTLuu Michael B
SCSCR
withholding309-$1.45MF
Direct Ownership
−2.2%03/0503/04

Luu Michael B Insider Activity FAQ

SEC Form 4 context

Who is Luu Michael B?

Luu Michael B is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001583179.

Which companies has Luu Michael B reported transactions for?

CALIFORNIA WATER SERVICE GROUP

When was Luu Michael B's latest insider buy?

No open-market insider purchase is available for this period.

When was Luu Michael B's latest insider sale?

sale at CALIFORNIA WATER SERVICE GROUP on Mar 20, 2026 valued at $32,945.

Where can I see the original SEC filings?

Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.

Are performance metrics included?

This version does not calculate win rates, forward returns, benchmark-adjusted returns, or high-conviction scores.