Reporting owner · CIK 0001675905

Gaffin David Joseph

Visual SEC Form 4 history across 1 companies, 19 transactions and 6 filings.

EVP, CLO, INCEVP, CLO, Alkermes, Inc.Alkermes plc.
Open-market mix
Latest filingSep 03, 2026, 10:32 PM
Filings6Form 4 records
Buying$00 purchases
Selling$97.7K1 sales
Net value−$97.7KBuys minus sells
Companies13 securities
Most recentSep 03, 2026sale

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
530-3-5Feb 25Feb 261Sep 26

Net value flow

Buys minus sells

Feb 25
$0
Feb 26
$0
Sep 26
−$97.7K

Transaction texture

Ownership and ticket size

Average P/S size$97.7K
Median P/S size$97.7K
Direct19
Indirect0
Sep 03, 2026sale

Filing-only signals

Deterministic matches in this insider's history

Derivative Transactionfiling-context6Direct Ownershipfiling-context18Large Holdings Increaseholdings2Large Holdings Reductionholdings3

Latest Form 4 facts

Quick context from source filings

Latest transaction

sale at Alkermes plc. on Sep 03, 2026 valued at $97,652.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Associated companies

Visual map of known reporting history

ALKSAlkermes plc.19 transactions · latest Sep 03, 2026, 10:32 PM
TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date
ALKSGaffin David Joseph
EVPCLOINC
sale10b5-12.03k-$9.76MS
Cluster Selling Direct Ownership 10b5-1 Detected
0.0%09/0309/03
ALKSGaffin David Joseph
EVPCLOINC
withholding7.61k-$25.5MF
Direct Ownership
+0.3%02/0702/05
ALKSGaffin David Joseph
EVPCLOINC
grant25.3k—A
Direct Ownership
+0.3%02/0702/05
ALKSGaffin David Joseph
EVPCLOINC
exercise6.86k—M
Derivative Transaction Direct Ownership Large Holdings Reduction
—02/28/202502/26/2025
ALKSGaffin David Joseph
EVPCLOINC
withholding3.04k-$10.6MF
Direct Ownership
—02/28/202502/26/2025
ALKSGaffin David Joseph
EVPCLOINC
exercise6.86k—M
Direct Ownership
—02/28/202502/26/2025
ALKSGaffin David Joseph
EVPCLOINC
exercise7.68k—M
Derivative Transaction Direct Ownership Large Holdings Reduction
—02/25/202502/23/2025
ALKSGaffin David Joseph
EVPCLOINC
exercise7.43k—M
Derivative Transaction Direct Ownership
—02/25/202502/22/2025
ALKSGaffin David Joseph
EVPCLOINC
withholding3.41k-$12.0MF
Direct Ownership
—02/25/202502/23/2025
ALKSGaffin David Joseph
EVPCLOINC
exercise7.68k—M
Direct Ownership
—02/25/202502/23/2025

Gaffin David Joseph Insider Activity FAQ

SEC Form 4 context

Who is Gaffin David Joseph?

Gaffin David Joseph is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001675905.

Which companies has Gaffin David Joseph reported transactions for?

Alkermes plc.

When was Gaffin David Joseph's latest insider buy?

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

When was Gaffin David Joseph's latest insider sale?

sale at Alkermes plc. on Sep 03, 2026 valued at $97,652.

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.