Reporting owner · CIK 0001578852

Boulding Mark Elliott

Visual SEC Form 4 history across 1 companies, 40 transactions and 7 filings.

EVCEXEC. VP AND CLOPTC THERAPEUTICS, INC.
Open-market mix
Latest filingAug 19, 2026, 09:20 PM
Filings7Form 4 records
Buying$00 purchases
Selling$2.1M28 sales
Net value−$2.1MBuys minus sells
Companies12 securities
Most recentAug 17, 2026exercise

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
20100-10-202Feb 2517Jan 267Feb 262Aug 26

Net value flow

Buys minus sells

Feb 25
−$147.7K
Jan 26
−$1.2M
Feb 26
−$618.4K
Aug 26
−$204.1K

Transaction texture

Ownership and ticket size

Average P/S size$76.5K
Median P/S size$72.3K
Direct40
Indirect0
Aug 17, 2026exercise

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern23Derivative Transactionfiling-context6Direct Ownershipfiling-context40Large Holdings Increaseholdings1Large Holdings Reductionholdings2Large Salesize3Repeat Sellerpattern2410b5-1 Detectedfiling-context38

Latest Form 4 facts

Quick context from source filings

Latest transaction

sale at PTC THERAPEUTICS, INC. on Aug 17, 2026 valued at $70,640.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Latest sale

sale at PTC THERAPEUTICS, INC. on Aug 17, 2026 valued at $70,640.

Review SEC filing

Associated companies

Visual map of known reporting history

PTCTPTC THERAPEUTICS, INC.40 transactions · latest Aug 19, 2026, 09:20 PM
TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date
PTCTBoulding Mark Elliott
EVC
sale10b5-12-$14.0kS
Direct Ownership Repeat Seller 10b5-1 Detected
+1.6%02/1902/17
PTCTBoulding Mark Elliott
EVC
sale10b5-12.81k-$19.4MS
Direct Ownership Large Sale 10b5-1 Detected
+1.6%02/1902/17
PTCTBoulding Mark Elliott
EVC
exercise10b5-12.81k$7.22MM
Direct Ownership 10b5-1 Detected
+1.6%02/1902/17
PTCTBoulding Mark Elliott
EVC
sale10b5-1107-$850kS
Cluster Selling Direct Ownership Repeat Seller+1
−11.5%01/1201/09
PTCTBoulding Mark Elliott
EVC
sale10b5-1686-$5.39MS
Cluster Selling Direct Ownership Repeat Seller+1
−11.5%01/1201/09
PTCTBoulding Mark Elliott
EVC
sale10b5-11.52k-$11.7MS
Cluster Selling Direct Ownership Repeat Seller+1
−11.5%01/1201/09
PTCTBoulding Mark Elliott
EVC
sale10b5-11.28k-$9.83MS
Cluster Selling Direct Ownership Repeat Seller+1
−11.5%01/1201/08
PTCTBoulding Mark Elliott
EVC
sale10b5-1265-$2.04MS
Cluster Selling Direct Ownership Repeat Seller+1
−11.5%01/1201/08
PTCTBoulding Mark Elliott
EVC
sale10b5-12.48k-$19.0MS
Cluster Selling Direct Ownership Large Sale+2
−11.5%01/1201/08
PTCTBoulding Mark Elliott
EVC
exercise10b5-1751$0M
Derivative Transaction Direct Ownership 10b5-1 Detected
−7.3%01/0801/07

Boulding Mark Elliott Insider Activity FAQ

SEC Form 4 context

Who is Boulding Mark Elliott?

Boulding Mark Elliott is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001578852.

Which companies has Boulding Mark Elliott reported transactions for?

PTC THERAPEUTICS, INC.

When was Boulding Mark Elliott's latest insider buy?

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

When was Boulding Mark Elliott's latest insider sale?

sale at PTC THERAPEUTICS, INC. on Aug 17, 2026 valued at $70,640.

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.