Form
4
insider filings, from the source
Buys
Significant
Penny
Sales
Options
Clusters
Screener
Ratios
Learn
/
Insider · CIK 0001553053
Lawrence M Alleva
Files at:
GRTX
,
BFAM
,
TSRO
,
MRSN
,
ADAP
,
SYBX
.
On EDGAR ↗
Period
1M
3M
6M
1Y
2Y
All data
shares as filed — not split-adjusted
Open-market buys & sales
buys $40k · 1
sales $1.2M · 2
net −$1.1M
$10k
$10k
$100k
$100k
$1M
$1M
buys
sales
Jun 11
Jul 12
Aug 13
Sep 14
Oct 15
Nov 16
Dec 18
Reported trades — common stock
Trade
Reported (ET)
Company
Shares
Avg price
Total
Owned after
Δ stake
Flags
Aug 3, 2026
D
Form 4 →
Aug 5, 4:22 pm EDT
Galera Therapeutics, Inc.
GRTX
51
—
—
0
—
Jun 3, 2026
A
Form 4 →
Jun 5, 7:03 pm EDT
BRIGHT HORIZONS FAMILY SOLUTIONS INC.
BFAM
2,096
—
—
13,336
—
Jan 22, 2019
U
Form 4 →
Jan 22, 9:55 am EST
TESARO, Inc.
TSRO
29,902
$75.00
$2,242,650
0
—
plan?
Dec 17, 2018
P
Form 4 →
Dec 19, 8:04 pm EST
Adaptimmune Therapeutics PLC
ADAP
47,280
$0.84
$39,715
47,280
—
plan?
Aug 7, 2018
S
Form 4 →
Aug 7, 4:24 pm EDT
BRIGHT HORIZONS FAMILY SOLUTIONS INC.
BFAM
7,672
$109.90
$843,161
3,207
−70.5%
plan?
Aug 7, 2018
M
Form 4 →
Aug 7, 4:24 pm EDT
BRIGHT HORIZONS FAMILY SOLUTIONS INC.
BFAM
5,272
$29.37
$154,864
10,879
—
plan?
Jun 12, 2018
S
Form 4 →
Jun 14, 4:14 pm EDT
TESARO, Inc.
TSRO
7,142
$43.11
$307,920
29,902
−19.3%
plan?
Jun 12, 2018
M
Form 4 →
Jun 14, 4:14 pm EDT
TESARO, Inc.
TSRO
7,142
$6.62
$47,244
37,044
—
plan?
Jun 12, 2018
A
Form 4 →
Jun 13, 5:01 pm EDT
BRIGHT HORIZONS FAMILY SOLUTIONS INC.
BFAM
925
—
—
5,607
—
plan?
Jun 1, 2018
A
Form 4 →
Jun 6, 2:21 pm EDT
TESARO, Inc.
TSRO
1,599
—
—
29,902
—
plan?
late
Jun 1, 2017
A
Form 4 →
Jun 5, 6:12 pm EDT
TESARO, Inc.
TSRO
469
—
—
28,303
—
plan?
Jun 1, 2017
A
Form 4 →
Jun 5, 4:08 pm EDT
BRIGHT HORIZONS FAMILY SOLUTIONS INC.
BFAM
1,282
—
—
4,682
—
plan?
Jun 1, 2016
A
Form 4 →
Jun 3, 2:30 pm EDT
TESARO, Inc.
TSRO
1,480
—
—
27,834
—
plan?
May 12, 2016
A
Form 4 →
May 13, 4:36 pm EDT
BRIGHT HORIZONS FAMILY SOLUTIONS INC.
BFAM
1,000
—
—
3,400
—
plan?
Oct 5, 2015
C
J
Form 4 →
Oct 6, 1:34 pm EDT
Mirna Therapeutics, Inc.
MIRN
4,025
—
—
4,025
—
plan?
Jun 1, 2015
A
Form 4 →
Jun 3, 5:26 pm EDT
TESARO, Inc.
TSRO
1,069
—
—
26,354
—
plan?
Reported trades — derivatives (options, RSUs, warrants)
Trade
Reported (ET)
Company
Shares
Avg price
Total
Owned after
Δ stake
Flags
Aug 3, 2026
D
Form 4 →
Aug 5, 4:22 pm EDT
Galera Therapeutics, Inc.
GRTX
240
—
—
0
—
Jan 22, 2019
D
Form 4 →
Jan 22, 9:55 am EST
TESARO, Inc.
TSRO
86,689
—
—
0
—
Jan 2, 2019
A
Form 4 →
Jan 4, 4:00 pm EST
Mersana Therapeutics, Inc.
MRSN
13,619
—
—
13,619
—
Sep 20, 2018
A
Form 4 →
Sep 21, 4:01 pm EDT
Mersana Therapeutics, Inc.
MRSN
10,000
—
—
10,000
—
Aug 7, 2018
M
Form 4 →
Aug 7, 4:24 pm EDT
BRIGHT HORIZONS FAMILY SOLUTIONS INC.
BFAM
5,272
—
—
0
—
Jun 22, 2018
A
Form 4 →
Jun 26, 5:01 pm EDT
Adaptimmune Therapeutics PLC
ADAP
124,000
—
—
124,000
—
Jun 12, 2018
M
Form 4 →
Jun 14, 4:14 pm EDT
TESARO, Inc.
TSRO
7,142
—
—
0
—
Jun 1, 2018
A
Form 4 →
Jun 6, 2:21 pm EDT
TESARO, Inc.
TSRO
11,261
—
—
4,052
—
late
Jan 2, 2018
A
Form 4 →
Jan 4, 4:03 pm EST
Mersana Therapeutics, Inc.
MRSN
3,560
—
—
3,560
—
Sep 5, 2017
A
Form 4 →
Sep 7, 4:43 pm EDT
Mersana Therapeutics, Inc.
MRSN
20,000
—
—
20,000
—
Jul 3, 2017
A
Form 4 →
Jul 3, 5:01 pm EDT
Adaptimmune Therapeutics PLC
ADAP
243,724
—
—
243,724
—
Jun 1, 2017
A
Form 4 →
Jun 5, 6:12 pm EDT
TESARO, Inc.
TSRO
12,000
—
—
12,000
—
Aug 11, 2016
A
Form 4 →
Aug 12, 4:30 pm EDT
Adaptimmune Therapeutics PLC
ADAP
196,678
—
—
196,678
—
Jun 29, 2016
A
Form 4 →
Sep 6, 6:28 pm EDT
Mirna Therapeutics, Inc.
MIRN
10,000
—
—
10,000
—
late
Jun 1, 2016
A
Form 4 →
Jun 3, 2:30 pm EDT
TESARO, Inc.
TSRO
12,000
—
—
12,000
—
Oct 5, 2015
C
Form 4 →
Oct 6, 1:34 pm EDT
Mirna Therapeutics, Inc.
MIRN
3,818
—
—
0
—
Sep 30, 2015
A
Form 4 →
Sep 30, 7:20 pm EDT
Mirna Therapeutics, Inc.
MIRN
10,533
—
—
10,533
—
Jun 1, 2015
A
Form 4 →
Jun 3, 5:26 pm EDT
TESARO, Inc.
TSRO
10,000
—
—
10,000
—
May 11, 2015
A
Form 4 →
May 13, 5:16 pm EDT
BRIGHT HORIZONS FAMILY SOLUTIONS INC.
BFAM
1,000
—
—
1,000
—