Leiden Jeffrey M — Insider Trades & Holdings | InsiderBid

Leiden Jeffrey M

Form 4 filings across 2 companies. Net figures count open-market buys and sales only. EDGAR profile ↗

Lifetime net: -$60.8M

Positions by company

Reported holding is the most recent post-transaction share count on a Table I row.

Every company this insider has reported trading in, with the value bought and sold at each and the date they last traded.
Ticker	Company	Bought	Sold	Net	Shares held	Last trade
ODTX	Odyssey Therapeutics, Inc.	$100K	$0	+$100K	31,644	May 11
VRTX	Vertex Pharmaceuticals INC / Ma	$0	$60.9M	-$60.9M	34,797	Feb 24

Odyssey Therapeutics, Inc.

+$100K

Bought

$100K

Sold

$0

Held

31,644

Vertex Pharmaceuticals INC /…

-$60.9M

Bought

$0

Sold

$60.9M

Held

34,797

Filing record

How quickly this filer reports. Section 16 allows two business days from the transaction.

All 6 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Trade history

The 40 most recent Form 4 transactions.

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Ticker	Company	Type	Shares	Price	Value	Δ Own	Filing
May 11	ODTX	Odyssey Therapeutics, Inc.	MEXER◆	28,800	—	—	—	Open the original filing on SEC.gov
May 11	ODTX	Odyssey Therapeutics, Inc.	CCONV◆	96,002	—	—	—

ODTXMEXER◆—

Odyssey Therapeutics, Inc.May 11

28,800 sh

ODTXCCONV◆—

Odyssey Therapeutics, Inc.May 11

96,002 sh

ODTXCCONV◆—

Odyssey Therapeutics, Inc.May 11

100,000 sh

ODTXCCONV◆—

Odyssey Therapeutics, Inc.May 11

79,166 sh

ODTXFTAX$306

Odyssey Therapeutics, Inc.May 11

17 sh @ $18.00 · <0.1% own

ODTXMEXER—

Odyssey Therapeutics, Inc.May 11

2,963 sh · +10.3% own

ODTXCCONV—

Odyssey Therapeutics, Inc.May 11

28,698 sh

ODTXPBUY$100K

Odyssey Therapeutics, Inc.May 8

5,000 sh @ $20.00 · +1.9% own

ODTXAGRANT◆—

Odyssey Therapeutics, Inc.May 7

626,220 sh

VRTXFTAX$1.7M

Vertex Pharmaceuticals INC…Feb 24

3,547 sh @ $485.11 · -9.3% own

VRTXFTAX$1.4M

Vertex Pharmaceuticals INC…Feb 18

2,964 sh @ $483.75 · -7.2% own

VRTXAGRANT—

Vertex Pharmaceuticals INC…Feb 17

8,269 sh · +25.0% own

VRTXAGRANT—

Vertex Pharmaceuticals INC…Jan 22

9,012 sh · +37.5% own

VRTXMEXER◷◆—

Vertex Pharmaceuticals INC…Dec 4, 2025

1 sh

VRTXMEXER◷$91

Vertex Pharmaceuticals INC…Dec 4, 2025

1 sh @ $91.05 · 0.0% own

VRTXMEXER◷◆—

Vertex Pharmaceuticals INC…Dec 3, 2025

63,781 sh

VRTXSSELL◷$942.3K

Vertex Pharmaceuticals INC…Dec 3, 2025

2,070 sh @ $455.22 · -7.9% own

VRTXSSELL◷$4.7M

Vertex Pharmaceuticals INC…Dec 3, 2025

10,360 sh @ $453.34 · -28.4% own

VRTXSSELL◷$7.1M

Vertex Pharmaceuticals INC…Dec 3, 2025

15,681 sh @ $452.20 · -30.1% own

VRTXSSELL◷$2.6M

Vertex Pharmaceuticals INC…Dec 3, 2025

5,809 sh @ $451.20 · -10.0% own

VRTXSSELL◷$2.6M

Vertex Pharmaceuticals INC…Dec 3, 2025

5,880 sh @ $449.84 · -9.2% own

VRTXSSELL◷$1M

Vertex Pharmaceuticals INC…Dec 3, 2025

2,320 sh @ $448.78 · -3.5% own

VRTXSSELL◷$515K

Vertex Pharmaceuticals INC…Dec 3, 2025

1,152 sh @ $447.05 · -1.7% own

VRTXSSELL◷$3.5M

Vertex Pharmaceuticals INC…Dec 3, 2025

7,899 sh @ $445.56 · -10.5% own

VRTXSSELL◷$1.9M

Vertex Pharmaceuticals INC…Dec 3, 2025

4,352 sh @ $444.36 · -5.5% own

VRTXSSELL◷$1.1M

Vertex Pharmaceuticals INC…Dec 3, 2025

2,469 sh @ $443.21 · -3.0% own

VRTXSSELL◷$582.5K

Vertex Pharmaceuticals INC…Dec 3, 2025

1,320 sh @ $441.26 · -1.6% own

VRTXSSELL◷$2M

Vertex Pharmaceuticals INC…Dec 3, 2025

4,469 sh @ $440.40 · -5.1% own

VRTXMEXER◷$5.5M

Vertex Pharmaceuticals INC…Dec 3, 2025

63,781 sh @ $86.52 · +265.5% own

VRTXMEXER◷◆—

Vertex Pharmaceuticals INC…Nov 14, 2025

39,769 sh

VRTXMEXER◷◆—

Vertex Pharmaceuticals INC…Nov 14, 2025

13,835 sh

VRTXSSELL◷$17.7K

Vertex Pharmaceuticals INC…Nov 14, 2025

40 sh @ $442.00 · -0.2% own

VRTXSSELL◷$9.4M

Vertex Pharmaceuticals INC…Nov 14, 2025

21,330 sh @ $441.35 · -47.0% own

VRTXSSELL◷$14.2M

Vertex Pharmaceuticals INC…Nov 14, 2025

32,234 sh @ $440.30 · -41.5% own

VRTXMEXER◷$3.4M

Vertex Pharmaceuticals INC…Nov 14, 2025

39,769 sh @ $86.52 · +105.0% own

VRTXMEXER◷$1.3M

Vertex Pharmaceuticals INC…Nov 14, 2025

13,835 sh @ $91.05 · +57.6% own

VRTXMEXER◷◆—

Vertex Pharmaceuticals INC…Nov 13, 2025

19,688 sh

VRTXSSELL◷$511.6K

Vertex Pharmaceuticals INC…Nov 13, 2025

1,160 sh @ $441.05 · -4.6% own

VRTXSSELL◷$8.2M

Vertex Pharmaceuticals INC…Nov 13, 2025

18,528 sh @ $440.22 · -42.4% own

VRTXMEXER◷$1.8M

Vertex Pharmaceuticals INC…Nov 13, 2025

19,688 sh @ $91.05 · +81.9% own