Reporting owner · CIK 0001216055

Casper Marc N

SEC Form 4 history across 1 companies, 26 transactions and 3 filings.

CHAIR, CEOChairman & CEOTHERMO FISHER SCIENTIFIC INC.
Open-market transaction mix0% buys0 buys · 18 sales
Latest filingSep 01, 2026, 08:11 PM

Available history · Aug 20, 2026 – Aug 28, 2026

Filings3Form 4 records
Buying$00 purchases
Selling$12.7M18 sales
Net value−$12.7MBuys minus sells · disclosed values

Latest insider transactions

Form 4 filings from available history.
Casper Marc N transactions · 20 per page
CompanyInsiderActivityDisclosed valueFiled (ET)
TMOTHERMO FISHER SCIENTIFIC INC.
Casper Marc NCHAIR · CEOS · sale10b5-1 detectedSEC filing ↗-$787kView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Casper Marc NCHAIR · CEOS · sale10b5-1 detectedSEC filing ↗-$1.63MView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Casper Marc NCHAIR · CEOS · sale10b5-1 detectedSEC filing ↗-$824kView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Casper Marc NCHAIR · CEOS · sale10b5-1 detectedSEC filing ↗-$514kView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Casper Marc NCHAIR · CEOS · sale10b5-1 detectedSEC filing ↗-$568kView disclosure →
TMOTHERMO FISHER SCIENTIFIC INC.
Casper Marc NCHAIR · CEOM · exercise10b5-1 detectedSEC filing ↗$3.09MView disclosure →
Open a transaction for shares, transaction date, ownership and the original SEC filing.

Latest Form 4 facts

Quick context from source filings

Latest open-market transaction

sale at THERMO FISHER SCIENTIFIC INC. on Aug 24, 2026 valued at $38,982.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Latest sale

sale at THERMO FISHER SCIENTIFIC INC. on Aug 24, 2026 valued at $38,982.

Review SEC filing

Monthly open-market activity

Last 1 reported months · purchases and sales

View exact monthly values
MonthPurchasesSalesBuy valueSale valueNet value
Aug 2026018$0.00$12,734,261.76-$12,734,261.76

Net value is disclosed purchases minus sales, not profit. A dash means the value is unavailable.

Ownership and transaction size

Ownership and ticket size

Average P/S size$707.5K
Median P/S size$610.7K
Direct26
Indirect0
Aug 28, 2026withholding

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern18Derivative Transactionfiling-context3Direct Ownershipfiling-context26Large Holdings Reductionholdings2Large Salesize5Repeat Sellerpattern1710b5-1 Detectedfiling-context24

Associated companies

Companies in the disclosed reporting history

THERMO FISHER SCIENTIFIC INC.TMO · 31 transactions · latest Sep 01, 2026, 08:11 PM

Open-market buy performance

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

90d forward
No open-market purchases in available history

A 90-day purchase return requires an open-market buy. No eligible purchases are recorded in this history.

Disclosed ownership

How reported shareholdings evolved

Non-derivative shares held after reported transactions—not stock prices or a complete portfolio.

23 observations · Aug 20, 2026 – Aug 28, 2026. Window ends at the latest available report, not today.

Selected observation · Aug 28, 2026122668.741000 shares reported
Inspect transaction
View exact observations and source transactions
Transaction dateShares held afterFiledSource
Aug 20, 2026133925.358000Aug 24, 2026View transaction
Aug 20, 2026133016.358000Aug 24, 2026View transaction
Aug 20, 2026132195.358000Aug 24, 2026View transaction
Aug 20, 2026130881.358000Aug 24, 2026View transaction
Aug 20, 2026128280.358000Aug 24, 2026View transaction
Aug 20, 2026127030.358000Aug 24, 2026View transaction
Aug 20, 2026125995.358000Aug 24, 2026View transaction
Aug 20, 2026124565.358000Aug 24, 2026View transaction
Aug 20, 2026124005.358000Aug 24, 2026View transaction
Aug 20, 2026123925.358000Aug 24, 2026View transaction
Aug 21, 2026133925.358000Aug 24, 2026View transaction
Aug 21, 2026131198.358000Aug 24, 2026View transaction
Aug 21, 2026128184.358000Aug 24, 2026View transaction
Aug 21, 2026126393.358000Aug 24, 2026View transaction
Aug 21, 2026124246.358000Aug 24, 2026View transaction
Aug 21, 2026123925.358000Aug 24, 2026View transaction
Aug 24, 2026124200.358000Aug 26, 2026View transaction
Aug 24, 2026124099.358000Aug 26, 2026View transaction
Aug 24, 2026124066.358000Aug 26, 2026View transaction
Aug 24, 2026123987.358000Aug 26, 2026View transaction
Aug 24, 2026123925.358000Aug 26, 2026View transaction
Aug 28, 2026123200.592000Sep 1, 2026View transaction
Aug 28, 2026122668.741000Sep 1, 2026View transaction

Securities and direct/indirect ownership contexts are kept separate and never summed. Joint filings may associate the same disclosed row with multiple owners. Unknown values are omitted, not treated as zero. Lines connect observations for readability; they do not establish holdings between filings, cost basis, or current ownership. Amendments and stock splits require reviewing the source.

Casper Marc N Insider Activity FAQ

SEC Form 4 context

Who is Casper Marc N?

Casper Marc N is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001216055.

Which companies has Casper Marc N reported transactions for?

THERMO FISHER SCIENTIFIC INC.

When was Casper Marc N's latest insider buy?

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

When was Casper Marc N's latest insider sale?

sale at THERMO FISHER SCIENTIFIC INC. on Aug 24, 2026 valued at $38,982.

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?

The profile shows average and median 90-day stock returns after open-market purchases when price coverage is available. These are unadjusted stock returns, not realized trading gains. Win rates, benchmark-adjusted returns and conviction scores are not calculated.