David Davidson Insider Trading $BLUE bluebird bio, Inc.

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General | Insider Transactions | Monthly Overview

Get the latest insider transactions of David Davidson. David Davidson is Chief Medical Officer in bluebird bio, Inc. ($BLUE).

David Davidson in bluebird bio, Inc.

Trading Symbol: BLUE
Industry: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
Position of David Davidson: Chief Medical Officer
Holdings: 47,787 shares
Current Value: $3,521,902
Latest Transaction: Apr 07 2021
$BLUE Market Capitalization: $2.75B
$BLUE Previous Close: $73.70

Last 4 weeks trend: HOLD
Last 3 months trend: HOLD

Latest Insider Trading Transactions of David Davidson in bluebird bio, Inc.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
May 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	179.00	1,200	214,795	28,603	29.8 K to 28.6 K (-4.03 %)
May 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	177.90	3,299	586,880	29,803	33.1 K to 29.8 K (-9.97 %)
May 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	176.55	1,000	176,546	33,102	34.1 K to 33.1 K (-2.93 %)
May 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	175.61	1,703	299,058	34,102	35.8 K to 34.1 K (-4.76 %)
May 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	174.41	1,000	174,405	35,805	36.8 K to 35.8 K (-2.72 %)
May 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	173.25	1,100	190,570	36,805	37.9 K to 36.8 K (-2.90 %)
May 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	24.47	13,000	318,110	37,905	24.9 K to 37.9 K (+52.20 %)
Apr 16 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	24.47	3,000	73,410	40,000
Apr 16 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	180.17	3,000	540,508	24,905	27.9 K to 24.9 K (-10.75 %)
Apr 16 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	24.47	3,000	73,410	27,905	24.9 K to 27.9 K (+12.05 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	24.47	22,000	538,340	43,000
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	171.33	1,600	274,135	24,905	26.5 K to 24.9 K (-6.04 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	170.55	3,552	605,809	26,505	30.1 K to 26.5 K (-11.82 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	169.36	3,800	643,552	30,057	33.9 K to 30.1 K (-11.22 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	168.09	1,900	319,375	33,857	35.8 K to 33.9 K (-5.31 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	167.21	3,400	568,529	35,757	39.2 K to 35.8 K (-8.68 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	166.18	1,518	252,265	39,157	40.7 K to 39.2 K (-3.73 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	164.66	2,375	391,074	40,675	43.1 K to 40.7 K (-5.52 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	163.86	2,900	475,201	43,050	46 K to 43.1 K (-6.31 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	162.77	955	155,446	45,950	46.9 K to 46 K (-2.04 %)
Apr 04 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	24.47	22,000	538,340	46,905	24.9 K to 46.9 K (+88.34 %)
Feb 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	5.50	4,000	22,002	67,951
Feb 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	A	205.25	45,000	9,236,250	45,000
Feb 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	203.20	1,400	284,484	24,905	26.3 K to 24.9 K (-5.32 %)
Feb 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	201.91	2,600	524,957	26,305	28.9 K to 26.3 K (-8.99 %)
Feb 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	5.50	4,000	22,002	28,905	24.9 K to 28.9 K (+16.06 %)
Feb 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Grant	A	0.00	11,250	0	24,905	13.7 K to 24.9 K (+82.39 %)
Jan 09 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	5.50	1,200	6,600	71,951
Jan 09 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	174.60	1,000	174,600	13,655	14.7 K to 13.7 K (-6.82 %)
Jan 09 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	171.42	200	34,283	14,655	14.9 K to 14.7 K (-1.35 %)
Jan 09 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	5.50	1,200	6,600	14,855	13.7 K to 14.9 K (+8.79 %)
Jan 09 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	174.17	304	52,947	13,655	14 K to 13.7 K (-2.18 %)
Jan 09 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	173.26	2,018	349,631	13,959	16 K to 14 K (-12.63 %)
Jan 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	5.50	6,000	33,002	73,151
Jan 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	182.36	275	50,149	15,977	16.3 K to 16 K (-1.69 %)
Jan 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	181.70	757	137,548	16,252	17 K to 16.3 K (-4.45 %)
Jan 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	180.36	2,468	445,133	17,009	19.5 K to 17 K (-12.67 %)
Jan 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	179.58	2,500	448,950	19,477	22 K to 19.5 K (-11.38 %)
Jan 05 2018	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	5.50	6,000	33,002	21,977	16 K to 22 K (+37.55 %)
Dec 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	5.50	4,000	22,002	79,151
Dec 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	173.48	800	138,780	15,977	16.8 K to 16 K (-4.77 %)
Dec 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	172.77	1,335	230,650	16,777	18.1 K to 16.8 K (-7.37 %)
Dec 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	171.72	1,865	320,250	18,112	20 K to 18.1 K (-9.34 %)
Dec 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	5.50	4,000	22,002	19,977	16 K to 20 K (+25.04 %)
Nov 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	5.50	4,000	22,002	83,151
Nov 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	146.14	1,100	160,750	15,977	17.1 K to 16 K (-6.44 %)
Nov 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	145.39	1,272	184,930	17,077	18.3 K to 17.1 K (-6.93 %)
Nov 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	144.44	1,628	235,142	18,349	20 K to 18.3 K (-8.15 %)
Nov 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	5.50	4,000	22,002	19,977	16 K to 20 K (+25.04 %)
Oct 04 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	5.50	4,000	22,002	87,151
Oct 04 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	132.20	200	26,440	15,977	16.2 K to 16 K (-1.24 %)
Oct 04 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	131.75	2,459	323,979	16,177	18.6 K to 16.2 K (-13.19 %)
Oct 04 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	130.37	1,341	174,830	18,636	20 K to 18.6 K (-6.71 %)
Oct 04 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	5.50	4,000	22,002	19,977	16 K to 20 K (+25.04 %)
Sep 06 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	5.50	12,000	66,005	91,151
Sep 06 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	130.01	9,000	1,170,112	15,977	25 K to 16 K (-36.03 %)
Sep 06 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	126.60	700	88,620	24,977	25.7 K to 25 K (-2.73 %)
Sep 06 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	126.16	2,300	290,173	25,677	28 K to 25.7 K (-8.22 %)
Sep 06 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	5.50	12,000	66,005	27,977	16 K to 28 K (+75.11 %)
Jul 11 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	101.10	100	10,110	15,977	16.1 K to 16 K (-0.62 %)
Jul 11 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	100.43	1,100	110,473	16,077	17.2 K to 16.1 K (-6.40 %)
Jul 07 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	5,000	10,450	4,239
Jul 07 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	106.05	100	10,605	17,177	17.3 K to 17.2 K (-0.58 %)
Jul 07 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	105.26	4,900	515,790	17,277	22.2 K to 17.3 K (-22.09 %)
Jul 07 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	5,000	10,450	22,177	17.2 K to 22.2 K (+29.11 %)
Jun 07 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	9,239
Jun 07 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	90.00	1,000	90,002	17,177	18.2 K to 17.2 K (-5.50 %)
Jun 07 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	18,177	17.2 K to 18.2 K (+5.82 %)
Jun 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	2,000	4,180	10,239
Jun 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	75.42	2,000	150,849	17,177	19.2 K to 17.2 K (-10.43 %)
Jun 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	2,000	4,180	19,177	17.2 K to 19.2 K (+11.64 %)
May 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	3,000	6,270	12,239
May 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	90.03	1,000	90,030	17,177	18.2 K to 17.2 K (-5.50 %)
May 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	88.61	990	87,724	18,177	19.2 K to 18.2 K (-5.17 %)
May 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	87.58	1,010	88,455	19,167	20.2 K to 19.2 K (-5.01 %)
May 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	3,000	6,270	20,177	17.2 K to 20.2 K (+17.47 %)
Apr 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	3,000	6,270	15,239
Apr 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	91.55	100	9,155	17,177	17.3 K to 17.2 K (-0.58 %)
Apr 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	90.87	2,900	263,528	17,277	20.2 K to 17.3 K (-14.37 %)
Apr 05 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	3,000	6,270	20,177	17.2 K to 20.2 K (+17.47 %)
Mar 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	5,000	10,450	18,239
Mar 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	90.32	3,000	270,954	17,177	20.2 K to 17.2 K (-14.87 %)
Mar 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	89.35	2,000	178,690	20,177	22.2 K to 20.2 K (-9.02 %)
Mar 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	5,000	10,450	22,177	17.2 K to 22.2 K (+29.11 %)
Feb 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	D	2.09	2,000	4,180	23,239
Feb 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	A	75.60	34,100	2,577,960	34,100
Feb 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	74.51	1,130	84,197	17,177	18.3 K to 17.2 K (-6.17 %)
Feb 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	73.55	870	63,991	18,307	19.2 K to 18.3 K (-4.54 %)
Feb 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	2,000	4,180	19,177	17.2 K to 19.2 K (+11.64 %)
Feb 03 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Grant	A	0.00	8,500	0	17,177	8.7 K to 17.2 K (+97.96 %)
Jan 31 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	6,000	12,540	25,239
Jan 31 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	69.13	4,868	336,519	8,677	13.5 K to 8.7 K (-35.94 %)
Jan 31 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	68.58	1,132	77,630	13,545	14.7 K to 13.5 K (-7.71 %)
Jan 31 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	6,000	12,540	14,677	8.7 K to 14.7 K (+69.15 %)
Jan 09 2017	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	67.10	923	61,933	8,677	9.6 K to 8.7 K (-9.61 %)
Jul 19 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	31,239
Jul 19 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	45.08	1,000	45,078	9,600	10.6 K to 9.6 K (-9.43 %)
Jul 19 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	10,600	9.6 K to 10.6 K (+10.42 %)
Jun 16 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	32,239
Jun 16 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	40.11	1,000	40,112	9,600	10.6 K to 9.6 K (-9.43 %)
Jun 16 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	10,600	9.6 K to 10.6 K (+10.42 %)
May 18 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	33,239
May 18 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	38.73	1,000	38,729	9,600	10.6 K to 9.6 K (-9.43 %)
May 18 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	10,600	9.6 K to 10.6 K (+10.42 %)
Mar 17 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	35,239
Mar 17 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	46.77	200	9,354	9,600	9.8 K to 9.6 K (-2.04 %)
Mar 17 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	45.96	800	36,772	9,800	10.6 K to 9.8 K (-7.55 %)
Mar 17 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	10,600	9.6 K to 10.6 K (+10.42 %)
Mar 03 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	A	50.51	38,400	1,939,584	38,400
Mar 03 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Grant	A	0.00	9,600	0	9,600	0 to 9.6 K
Feb 18 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	36,239
Feb 18 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	45.18	1,000	45,176	0	1,000 to 0 (-100.00 %)
Feb 18 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	1,000	0 to 1,000
Apr 19 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	34,239
Apr 19 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	49.63	1,000	49,630	9,600	10.6 K to 9.6 K (-9.43 %)
Apr 19 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	10,600	9.6 K to 10.6 K (+10.42 %)
Jan 20 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	37,239
Jan 20 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	44.39	1,000	44,392	0	1,000 to 0 (-100.00 %)
Jan 20 2016	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	1,000	0 to 1,000
Dec 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	1,000	2,090	38,239
Dec 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	58.55	1,000	58,546	0	1,000 to 0 (-100.00 %)
Dec 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	1,000	2,090	1,000	0 to 1,000
Nov 18 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	2,000	4,180	39,239
Nov 18 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	71.69	730	52,332	0	730 to 0 (-100.00 %)
Nov 18 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	70.60	1,270	89,656	730	2 K to 730 (-63.50 %)
Nov 18 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	2,000	4,180	2,000	0 to 2 K
Oct 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	2,000	4,180	41,239
Oct 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	80.89	96	7,765	0	96 to 0 (-100.00 %)
Oct 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	79.92	1,329	106,216	96	1.4 K to 96 (-93.26 %)
Oct 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	78.99	575	45,418	1,425	2 K to 1.4 K (-28.75 %)
Oct 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	2,000	4,180	2,000	0 to 2 K
Sep 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	2,000	4,180	43,239
Sep 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	132.18	178	23,528	0	178 to 0 (-100.00 %)
Sep 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	131.35	273	35,859	178	451 to 178 (-60.53 %)
Sep 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	130.11	270	35,129	451	721 to 451 (-37.45 %)
Sep 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	129.36	1,279	165,446	721	2 K to 721 (-63.95 %)
Sep 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	2,000	4,180	2,000	0 to 2 K
Aug 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	2,000	4,180	45,239
Aug 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	126.76	180	22,817	0	180 to 0 (-100.00 %)
Aug 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	125.83	559	70,340	180	739 to 180 (-75.64 %)
Aug 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	124.90	1,261	157,499	739	2 K to 739 (-63.05 %)
Aug 19 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	2,000	4,180	2,000	0 to 2 K
Jul 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	2,000	4,180	47,239
Jul 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	167.38	350	58,584	0	350 to 0 (-100.00 %)
Jul 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	166.39	225	37,437	350	575 to 350 (-39.13 %)
Jul 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	165.55	1,425	235,906	575	2 K to 575 (-71.25 %)
Jul 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Buy	M	2.09	2,000	4,180	2,000	0 to 2 K
Jun 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Option Exercise	M	2.09	2,000	4,180	49,239
Jun 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	186.29	21	3,912	0	21 to 0 (-100.00 %)
Jun 17 2015	BLUE	bluebird bio, Inc.	Davidson David	Chief Medical Offic ...	Sell	S	185.57	95	17,629	21	116 to 21 (-81.90 %)

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