Gaffin David Joseph

EVP, CLO, Alkermes, Inc., SVP, CLO, Alkermes, Inc. · SEC CIK 1675905
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Buy track record

How this insider's open-market purchases have performed
This insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
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Open-market buys
$0
0 trades
Open-market sells
$1.57M
11 trades
Net flow
−$1.57M
Net selling
Total filings
93
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
ALKS
Option exercise Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Option exercise · filed Jul 30, 2021 ΔOwn +19%
+$231.7K
14,000 sh @ $17
ALKS
Sell Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Open-market sale · filed Jul 30, 2021 ΔOwn −16%

Gaffin David Joseph sold $364K of ALKS, trimming their stake 16%.

−$364K
14,000 sh @ $26
ALKS
Option exercise Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Option exercise · filed Jun 11, 2021 ΔOwn +18%
+$223.4K
13,500 sh @ $17
ALKS
Sell Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Open-market sale · filed Jun 11, 2021 ΔOwn −15%

Gaffin David Joseph sold $337.5K of ALKS, trimming their stake 15%.

−$337.5K
13,500 sh @ $25
ALKS
Option exercise Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Option exercise · filed Jun 8, 2021 ΔOwn +18%
+$223.4K
13,500 sh @ $17
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ALKS
Sell Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Open-market sale · filed Jun 8, 2021 ΔOwn −15%

Gaffin David Joseph sold $324K of ALKS, trimming their stake 15%.

−$324K
13,500 sh @ $24
ALKS
Option exercise Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Option exercise · filed May 14, 2021 ΔOwn +3.0%
+$40.7K
2,250 sh @ $18
ALKS
Sell Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Open-market sale · filed May 14, 2021 ΔOwn −2.9%

Gaffin David Joseph sold $50K of ALKS, trimming their stake 3%.

−$50K
2,250 sh @ $22
ALKS
Tax withholding Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Tax withholding · filed Feb 23, 2021 ΔOwn −2.6%
−$39.6K
2,022 sh @ $20
ALKS
Tax withholding Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Tax withholding · filed Feb 23, 2021 ΔOwn −2.9%
−$40.4K
2,061 sh @ $20
ALKS
Tax withholding Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Tax withholding · filed Feb 18, 2021 ΔOwn −1.3%
−$17.3K
868 sh @ $20
ALKS
Tax withholding Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Tax withholding · filed Feb 18, 2021 ΔOwn −1.8%
−$23.2K
1,172 sh @ $20
ALKS
Tax withholding Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Tax withholding · filed Mar 3, 2020 ΔOwn −1.1%
−$13.8K
662 sh @ $21
ALKS
Tax withholding Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Tax withholding · filed Feb 24, 2020 ΔOwn −3.4%
−$40.8K
2,016 sh @ $20
ALKS
Tax withholding Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Tax withholding · filed Feb 18, 2020 ΔOwn −1.4%
−$13.6K
766 sh @ $18
ALKS
Tax withholding Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Tax withholding · filed Feb 18, 2020 ΔOwn −2.3%
−$20.8K
1,172 sh @ $18
ALKS
Sell Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Open-market sale · filed May 13, 2019 ΔOwn −4.2%

Gaffin David Joseph sold $60.3K of ALKS, trimming their stake 4%.

−$60.3K
2,253 sh @ $27
ALKS
Sell Gaffin David Joseph · SVP, CLO, Alkermes, Inc. · Open-market sale · filed May 13, 2019 ΔOwn −6.0%

Gaffin David Joseph sold $84.2K of ALKS, trimming their stake 6%.

−$84.2K
3,120 sh @ $27

Frequently asked questions

How is Gaffin David Joseph's win rate calculated?

We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.

Why are some buys not included in the score?

A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.

What do the 1M / 3M / 6M / 12M columns mean?

They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.

Does a high win rate mean I should copy this insider?

No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.

Where does this data come from?

Trades come from Gaffin David Joseph's SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.