DAVIDSON DAVID

PrivateCIK: 1578696
Location

CAMBRIDGE, MA

DAVIDSON DAVID (Chief Medical Officer) sold 13.4% of their position (4.91K shares) of BLUEBIRD BIO, INC. on the open market

Open‑market sale worth $764.8K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 4 sales
InsiderDAVIDSON DAVIDCIK 1578696
IssuerBLUEBIRD BIO, INC.CIK 1293971
Officer· Chief Medical Officer
Since Jul 2018
-4.91K
Net shares
Net seller
$764.8K
Total sold
4
Open market trades
0B · 4S
6
Total transactions
4.91K acquired · 9.82K disposed
Non-Derivative Transactions5

Common Stock

Direct
M · Option Exercise

Shares

+4.91K

Price / share

$50.51

Trade value

$248K

% of position

15.5%
3/4/2019
31.62K36.53K

Common Stock

Direct
S · Sale

Shares

1.95K

Price / share

$155.07

Trade value

$301.92K

% of position

5.3%
3/4/2019
36.53K34.58K

Common Stock

Direct
S · Sale

Shares

2.23K

Price / share

$155.85

Trade value

$346.77K

% of position

6.4%
3/4/2019
34.58K32.35K

Common Stock

Direct
S · Sale

Shares

338.00

Price / share

$157.00

Trade value

$53.07K

% of position

1.0%
3/4/2019
32.35K32.02K

Common Stock

Direct
S · Sale

Shares

400.00

Price / share

$157.70

Trade value

$63.08K

% of position

1.2%
3/4/2019
32.02K31.62K
Total

Net shares

+0.00

Net value

-$516.83K

Derivative Transactions1

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

4.91K shares

Shares

4.91K

Strike price

50.51

Held after

32.13K

Exercisable

3/4/2019
DAVIDSON DAVID — Insider Transaction (Form 4) Filed Mar 6, 2019 | Finecho