Form
4
insider filings, from the source
Buys
Significant
Penny
Sales
Options
Clusters
Screener
Ratios
Learn
/
Insider · CIK 0001184627
Dennis M Fenton
Files at:
TRAX
,
ANAB
,
PTLA
,
SNNA
,
PFNX
,
XNPT
,
KYTH
,
HSP
.
On EDGAR ↗
Period
1M
3M
6M
1Y
2Y
All data
shares as filed — not split-adjusted
Open-market buys & sales
buys $29k · 1
sales $0 · 0
net $29k
$10k
$10k
$100k
$100k
$1M
$1M
buys
sales
Sep 17
Sep 17
Sep 17
Sep 18
Sep 18
Sep 18
Sep 19
Reported trades — common stock
Trade
Reported (ET)
Company
Shares
Avg price
Total
Owned after
Δ stake
Flags
Jun 15, 2026
M
Form 4 →
Jun 17, 4:05 pm EDT
First Tracks Biotherapeutics, Inc.
TRAX
6,030
—
—
10,995
—
Jun 8, 2018
A
Form 4 →
Jun 8, 6:00 pm EDT
PORTOLA PHARMACEUTICALS INC
PTLA
3,000
—
—
9,000
—
plan?
Sep 18, 2017
P
Form 4 →
Sep 19, 11:56 am EDT
Sienna Biopharmaceuticals, Inc.
SNNA
1,250
$22.96
$28,698
1,250
—
plan?
Jun 16, 2017
A
Form 4 →
Jun 19, 5:56 pm EDT
PORTOLA PHARMACEUTICALS INC
PTLA
3,000
—
—
3,000
—
plan?
Jul 5, 2016
U
Form 4 →
Jul 6, 9:43 pm EDT
XENOPORT INC
XNPT
24,300
$7.03
$170,829
0
—
plan?
Jun 17, 2016
A
Form 4 →
Jun 20, 3:43 pm EDT
PORTOLA PHARMACEUTICALS INC
PTLA
3,000
—
—
3,000
—
plan?
May 17, 2016
M
Form 4 →
May 19, 5:30 pm EDT
XENOPORT INC
XNPT
5,000
—
—
23,000
—
plan?
Oct 1, 2015
D
Form 4 →
Oct 2, 2:17 pm EDT
KYTHERA BIOPHARMACEUTICALS INC
KYTH
3,348
—
—
0
—
plan?
Sep 3, 2015
D
Form 4 →
Sep 3, 9:01 am EDT
HOSPIRA INC
HSP
15,477
$90.00
$1,392,930
0
—
plan?
May 19, 2015
M
Form 4 →
May 21, 6:59 pm EDT
XENOPORT INC
XNPT
5,000
—
—
18,000
—
plan?
Feb 25, 2015
A
Form 4 →
Feb 27, 10:59 am EST
HOSPIRA INC
HSP
2,171
—
—
15,477
—
plan?
Reported trades — derivatives (options, RSUs, warrants)
Trade
Reported (ET)
Company
Shares
Avg price
Total
Owned after
Δ stake
Flags
Jun 15, 2026
M
Form 4 →
Jun 17, 4:05 pm EDT
First Tracks Biotherapeutics, Inc.
TRAX
6,030
—
—
0
—
May 12, 2026
A
Form 4/A →
Jun 12, 4:09 pm EDT
First Tracks Biotherapeutics, Inc.
TRAX
9,500
—
—
7,000
—
Feb 8, 2019
A
Form 4 →
Feb 11, 5:08 pm EST
ANAPTYSBIO INC
ANAB
6,000
—
—
6,000
—
Jun 8, 2018
A
Form 4 →
Jun 8, 6:00 pm EDT
PORTOLA PHARMACEUTICALS INC
PTLA
6,000
—
—
6,000
—
Jun 1, 2018
A
Form 4 →
Jun 4, 9:41 pm EDT
Sienna Biopharmaceuticals, Inc.
SNNA
10,000
—
—
10,000
—
Mar 5, 2018
A
Form 4 →
Mar 6, 5:22 pm EST
ANAPTYSBIO INC
ANAB
11,507
—
—
5,507
—
Jun 16, 2017
A
Form 4 →
Jun 19, 5:56 pm EDT
PORTOLA PHARMACEUTICALS INC
PTLA
6,000
—
—
6,000
—
May 5, 2017
A
Form 4 →
May 8, 5:40 pm EDT
Pfenex Inc.
PFNX
18,000
—
—
18,000
—
Jul 5, 2016
D
Form 4 →
Jul 6, 9:43 pm EDT
XENOPORT INC
XNPT
80,000
$7.03
$562,400
0
—
Jun 17, 2016
A
Form 4 →
Jun 20, 3:43 pm EDT
PORTOLA PHARMACEUTICALS INC
PTLA
6,000
—
—
6,000
—
May 17, 2016
A
M
Form 4 →
May 19, 5:30 pm EDT
XENOPORT INC
XNPT
25,000
—
—
5,000
—
May 6, 2016
A
Form 4 →
May 9, 7:38 pm EDT
Pfenex Inc.
PFNX
18,000
—
—
18,000
—
Oct 1, 2015
D
Form 4 →
Oct 2, 2:17 pm EDT
KYTHERA BIOPHARMACEUTICALS INC
KYTH
73,877
—
—
0
—
Sep 14, 2015
A
Form 4 →
Sep 15, 9:32 pm EDT
Pfenex Inc.
PFNX
25,000
—
—
25,000
—
Jun 2, 2015
A
Form 4 →
Jun 4, 6:05 pm EDT
KYTHERA BIOPHARMACEUTICALS INC
KYTH
11,591
—
—
11,591
—
May 19, 2015
A
M
Form 4 →
May 21, 6:59 pm EDT
XENOPORT INC
XNPT
25,000
—
—
5,000
—
Feb 5, 2015
A
Form 4 →
Feb 10, 6:37 pm EST
PORTOLA PHARMACEUTICALS INC
PTLA
20,000
—
—
20,000
—
late