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United States Biotechnology & Medical Research

Atreca Inc (BCEL)

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Ticker: BCEL Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Serafini Tito
1 sale — total 1,455 USD
Sale 1 Apr 2024
Value US$2,114,484.02 | Price 140.52 | Shares 1,467
Sale 19 Oct 2023
Value US$4,604,759.24 | Price 135.19 | Shares 76,555
Sale 19 Oct 2023
Value US$3,337,990.99 | Price 478.83 | Shares 58,822
Sale 1 Sep 2023
Value US$3,144.02 | Price 0.37 | Shares 8,393
Sale 1 Sep 2023
Value US$2,645.05 | Price 0.37 | Shares 7,061
Sale 1 Sep 2023
Value US$8,597.44 | Price 0.37 | Shares 22,951
Sale 2 Aug 2023
Value US$3,881.17 | Price 0.95 | Shares 4,076
Sale 2 Aug 2023
Value US$5,224.72 | Price 0.95 | Shares 5,487
Sale 2 Aug 2023
Value US$5,224.72 | Price 0.95 | Shares 5,487
Sale 2 Aug 2023
Value US$3,881.17 | Price 0.95 | Shares 4,076
Sale 2 Sep 2022
Value US$13,573.18 | Price 1.78 | Shares 7,646
Sale 2 Sep 2022
Value US$37,115.88 | Price 1.78 | Shares 20,908
Sale 2 Sep 2022
Value US$11,418.09 | Price 1.78 | Shares 6,432
Sale 2 Sep 2022
Value US$13,573.18 | Price 1.78 | Shares 7,646
Planned sale 4 Mar 2022
Value US$150,000.00 | Price 5.00 | Shares 30,000
Planned sale 27 Sep 2021
Value US$197,541.00 | Price 6.58 | Shares 30,000
Planned sale 17 Mar 2021
Value US$48,784.68 | Price 16.73 | Shares 2,916
Planned sale 17 Mar 2021
Value US$34,865.32 | Price 16.73 | Shares 2,084
Planned sale 15 Mar 2021
Value US$84,450.00 | Price 16.89 | Shares 5,000
Planned sale 11 Mar 2021
Value US$28,260.00 | Price 18.84 | Shares 1,500
Planned sale 11 Mar 2021
Value US$154,870.00 | Price 18.22 | Shares 8,500
Planned sale 17 Feb 2021
Value US$94,752.00 | Price 18.95 | Shares 5,000
Planned sale 16 Feb 2021
Value US$95,330.50 | Price 19.07 | Shares 5,000
Planned sale 11 Feb 2021
Value US$189,272.00 | Price 18.93 | Shares 10,000
Planned sale 19 Jan 2021
Value US$76,044.50 | Price 15.21 | Shares 5,000
Planned sale 14 Jan 2021
Value US$34,010.83 | Price 15.06 | Shares 2,259
Planned sale 13 Jan 2021
Value US$41,238.62 | Price 15.05 | Shares 2,741
Planned sale 11 Jan 2021
Value US$150,192.00 | Price 15.02 | Shares 10,000
Planned sale 17 Dec 2020
Value US$83,051.00 | Price 16.61 | Shares 5,000
Planned sale 14 Dec 2020
Value US$83,369.00 | Price 16.67 | Shares 5,000
Planned sale 11 Dec 2020
Value US$158,735.00 | Price 15.87 | Shares 10,000
Planned sale 27 Nov 2020
Value US$48,719.42 | Price 15.34 | Shares 3,175
Planned sale 17 Nov 2020
Value US$27,448.18 | Price 15.04 | Shares 1,825
Planned sale 16 Nov 2020
Value US$75,000.00 | Price 15.00 | Shares 5,000
Planned sale 16 Nov 2020
Value US$133,784.33 | Price 15.12 | Shares 8,847
Planned sale 11 Nov 2020
Value US$17,407.19 | Price 15.10 | Shares 1,153
Planned sale 10 Nov 2020
Value US$67,962.60 | Price 15.10 | Shares 4,500
Planned sale 19 Oct 2020
Value US$7,561.90 | Price 15.12 | Shares 500
Planned sale 13 Oct 2020
Value US$78,530.50 | Price 15.71 | Shares 5,000
Planned sale 12 Oct 2020
Value US$150,000.00 | Price 15.00 | Shares 10,000
Planned sale 6 Oct 2020
Value US$18,333.94 | Price 15.05 | Shares 1,218
Planned sale 18 Sep 2020
Value US$132,663.53 | Price 15.11 | Shares 8,782
Planned sale 18 Sep 2020
Value US$75,188.00 | Price 15.04 | Shares 5,000
Planned sale 14 Aug 2020
Value US$150,000.00 | Price 15.00 | Shares 10,000
Planned sale 14 Aug 2020
Value US$75,000.00 | Price 15.00 | Shares 5,000
Planned sale 13 Jul 2020
Value US$146,296.35 | Price 20.52 | Shares 7,129
Planned sale 13 Jul 2020
Value US$55,721.52 | Price 19.41 | Shares 2,871
Planned sale 13 Jul 2020
Value US$73,824.71 | Price 20.54 | Shares 3,594
Planned sale 13 Jul 2020
Value US$27,313.80 | Price 19.43 | Shares 1,406
Planned sale 1 Jul 2020
Value US$64,879.37 | Price 22.17 | Shares 2,926
Planned sale 1 Jul 2020
Value US$159,345.02 | Price 21.69 | Shares 7,346
Planned sale 22 Jun 2020
Value US$9,944.80 | Price 20.05 | Shares 496
Planned sale 22 Jun 2020
Value US$1,363.40 | Price 20.05 | Shares 68
Planned sale 19 Jun 2020
Value US$92,203.39 | Price 20.03 | Shares 4,604
Planned sale 19 Jun 2020
Value US$205,169.44 | Price 20.03 | Shares 10,245
Planned sale 15 Jun 2020
Value US$41,965.52 | Price 19.13 | Shares 2,194
Planned sale 15 Jun 2020
Value US$33,193.69 | Price 18.43 | Shares 1,801
Planned sale 15 Jun 2020
Value US$17,568.61 | Price 17.48 | Shares 1,005
Planned sale 11 Jun 2020
Value US$24,281.35 | Price 17.17 | Shares 1,414
Planned sale 11 Jun 2020
Value US$140,404.28 | Price 16.35 | Shares 8,586
Planned sale 1 Jun 2020
Value US$275,760.00 | Price 18.38 | Shares 15,000
Planned sale 28 May 2020
Value US$12,003.48 | Price 20.01 | Shares 600
Planned sale 27 May 2020
Value US$2,000.00 | Price 20.00 | Shares 100
Planned sale 26 May 2020
Value US$4,000.00 | Price 20.00 | Shares 200
Planned sale 26 May 2020
Value US$7,740.00 | Price 20.00 | Shares 387
Planned sale 18 May 2020
Value US$34,003.57 | Price 20.00 | Shares 1,700
Planned sale 18 May 2020
Value US$32,002.56 | Price 20.00 | Shares 1,600
Planned sale 15 May 2020
Value US$44,000.00 | Price 20.00 | Shares 2,200
Planned sale 15 May 2020
Value US$42,000.00 | Price 20.00 | Shares 2,100
Planned sale 13 May 2020
Value US$3,463.00 | Price 17.32 | Shares 200
Planned sale 13 May 2020
Value US$80,642.40 | Price 16.80 | Shares 4,800
Planned sale 11 May 2020
Value US$114,559.81 | Price 18.22 | Shares 6,288
Planned sale 11 May 2020
Value US$65,464.83 | Price 17.64 | Shares 3,712
Planned sale 7 May 2020
Value US$90,000.00 | Price 18.00 | Shares 5,000
Planned sale 1 May 2020
Value US$150,276.00 | Price 15.03 | Shares 10,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2024-04-03 2024-04-01 S Sale
4.0
Serafini Tito
Non-Executive Director
1,467 -36.0%
140.52
US$2,114,484 		1,467 -36.0% 140.52 US$2,114,484
2023-10-23 2023-10-19 S Sale
3.9
BAKER BROS. ADVISORS LP

Former 10% Owner
76,555 -49.7%
135.19
US$4,604,759 		76,555 -49.7% 135.19 US$4,604,759
2023-10-23 2023-10-19 S Sale
3.9
BAKER BROS. ADVISORS LP

Former 10% Owner
58,822 +39.2%
478.83
US$3,337,991 		58,822 +39.2% 478.83 US$3,337,991
2024-04-03 2023-09-01 S Sale
4.0
Serafini Tito
Non-Executive Director
8,393 -11.5%
0.37
US$3,144 		8,393 -11.5% 0.37 US$3,144
2024-04-03 2023-09-01 S Sale
4.0
Courtney Phillips

GENERAL COUNSEL & SECRETARY

Officer
7,061 -12.3%
0.37
US$2,645 		7,061 -12.3% 0.37 US$2,645
2024-04-03 2023-09-01 S Sale
2.4
Orwin John A

PRESIDENT & CEO

Executive Director
22,951 -22.8%
0.37
US$8,597 		22,951 -22.8% 0.37 US$8,597
2023-08-04 2023-08-02 S Sale
4.0
Courtney Phillips

General Counsel & Secretary

Officer
4,076 -6.6%
0.95
US$3,881 		4,076 -6.6% 0.95 US$3,881
2023-08-04 2023-08-02 S Sale
3.8
CROSS HERB

Chief Financial Officer

Officer
5,487 -7.0%
0.95
US$5,225 		5,487 -7.0% 0.95 US$5,225
2023-08-04 2023-08-02 S Sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
5,487 -7.0%
0.95
US$5,225 		5,487 -7.0% 0.95 US$5,225
2023-08-04 2023-08-02 S Sale
3.4
Gould Stephen E

Chief Scientific Officer

Officer
4,076 -12.5%
0.95
US$3,881 		4,076 -12.5% 0.95 US$3,881
2022-09-20 2022-09-02 S Sale
3.8
CROSS HERB

Chief Financial Officer

Officer
7,646 -18.1%
1.78
US$13,573 		7,646 -18.1% 1.78 US$13,573
2022-09-20 2022-09-02 S Sale
2.4
Orwin John A

President & CEO

Executive Director
20,908 -17.2%
1.78
US$37,116 		20,908 -17.2% 1.78 US$37,116
2022-09-20 2022-09-02 S Sale
4.0
Courtney Phillips

General Counsel & Secretary

Officer
6,432 -18.1%
1.78
US$11,418 		6,432 -18.1% 1.78 US$11,418
2022-09-20 2022-09-02 S Sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
7,646 -18.1%
1.78
US$13,573 		7,646 -18.1% 1.78 US$13,573
2022-03-08 2022-03-04 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
30,000 -11.0%
5.00
US$150,000 		30,000 -11.0% 5.00 US$150,000
2021-09-28 2021-09-27 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
30,000 -9.9%
6.58
US$197,541 		30,000 -9.9% 6.58 US$197,541
2021-03-19 2021-03-17 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
2,916 -100.0%
16.73
US$48,785 		2,916 -100.0% 16.73 US$48,785
2021-03-19 2021-03-17 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
2,084 -100.0%
16.73
US$34,865 		2,084 -100.0% 16.73 US$34,865
2021-03-16 2021-03-15 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
5,000 -1.3%
16.89
US$84,450 		5,000 -1.3% 16.89 US$84,450
2021-03-15 2021-03-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
1,500 -0.4%
18.84
US$28,260 		1,500 -0.4% 18.84 US$28,260
2021-03-15 2021-03-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
8,500 -2.3%
18.22
US$154,870 		8,500 -2.3% 18.22 US$154,870
2021-02-19 2021-02-17 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
5,000 -100.0%
18.95
US$94,752 		5,000 -100.0% 18.95 US$94,752
2021-02-18 2021-02-16 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
5,000 -1.3%
19.07
US$95,330 		5,000 -1.3% 19.07 US$95,330
2021-02-16 2021-02-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
10,000 -2.7%
18.93
US$189,272 		10,000 -2.7% 18.93 US$189,272
2021-01-21 2021-01-19 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
5,000 -100.0%
15.21
US$76,044 		5,000 -100.0% 15.21 US$76,044
2021-01-15 2021-01-14 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
2,259 -0.6%
15.06
US$34,011 		2,259 -0.6% 15.06 US$34,011
2021-01-15 2021-01-13 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
2,741 -0.7%
15.05
US$41,239 		2,741 -0.7% 15.05 US$41,239
2021-01-13 2021-01-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
10,000 -2.6%
15.02
US$150,192 		10,000 -2.6% 15.02 US$150,192
2020-12-21 2020-12-17 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
5,000 -100.0%
16.61
US$83,051 		5,000 -100.0% 16.61 US$83,051
2020-12-15 2020-12-14 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
5,000 -1.3%
16.67
US$83,369 		5,000 -1.3% 16.67 US$83,369
2020-12-15 2020-12-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
10,000 -2.5%
15.87
US$158,735 		10,000 -2.5% 15.87 US$158,735
2020-12-01 2020-11-27 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
3,175 -100.0%
15.34
US$48,719 		3,175 -100.0% 15.34 US$48,719
2020-11-18 2020-11-17 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
1,825 -100.0%
15.04
US$27,448 		1,825 -100.0% 15.04 US$27,448
2020-11-17 2020-11-16 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
5,000 -1.3%
15.00
US$75,000 		5,000 -1.3% 15.00 US$75,000
2020-11-17 2020-11-16 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
8,847 -2.2%
15.12
US$133,784 		8,847 -2.2% 15.12 US$133,784
2020-11-13 2020-11-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
1,153 -0.3%
15.10
US$17,407 		1,153 -0.3% 15.10 US$17,407
2020-11-12 2020-11-10 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
4,500 -100.0%
15.10
US$67,963 		4,500 -100.0% 15.10 US$67,963
2020-10-21 2020-10-19 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
500 -100.0%
15.12
US$7,562 		500 -100.0% 15.12 US$7,562
2020-10-16 2020-10-13 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
5,000 -1.3%
15.71
US$78,530 		5,000 -1.3% 15.71 US$78,530
2020-10-13 2020-10-12 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
10,000 -2.4%
15.00
US$150,000 		10,000 -2.4% 15.00 US$150,000
2020-10-08 2020-10-06 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
1,218 -0.3%
15.05
US$18,334 		1,218 -0.3% 15.05 US$18,334
2020-09-22 2020-09-18 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
8,782 -2.1%
15.11
US$132,664 		8,782 -2.1% 15.11 US$132,664
2020-09-22 2020-09-18 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
5,000 -1.2%
15.04
US$75,188 		5,000 -1.2% 15.04 US$75,188
2020-08-17 2020-08-14 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
10,000 -2.3%
15.00
US$150,000 		10,000 -2.3% 15.00 US$150,000
2020-08-17 2020-08-14 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
5,000 -1.2%
15.00
US$75,000 		5,000 -1.2% 15.00 US$75,000
2020-07-15 2020-07-13 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
7,129 -1.6%
20.52
US$146,296 		7,129 -1.6% 20.52 US$146,296
2020-07-15 2020-07-13 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
3,594 -0.9%
20.54
US$73,825 		3,594 -0.9% 20.54 US$73,825
2020-07-15 2020-07-13 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
1,406 -0.3%
19.43
US$27,314 		1,406 -0.3% 19.43 US$27,314
2020-07-15 2020-07-13 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
2,871 -0.7%
19.41
US$55,722 		2,871 -0.7% 19.41 US$55,722
2020-07-06 2020-07-01 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
2,926 -100.0%
22.17
US$64,879 		2,926 -100.0% 22.17 US$64,879
2020-07-06 2020-07-01 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
7,346 -71.5%
21.69
US$159,345 		7,346 -71.5% 21.69 US$159,345
2020-06-23 2020-06-22 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
496 -0.1%
20.05
US$9,945 		496 -0.1% 20.05 US$9,945
2020-06-23 2020-06-22 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
68 -0.0%
20.05
US$1,363 		68 -0.0% 20.05 US$1,363
2020-06-23 2020-06-19 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
4,604 -1.0%
20.03
US$92,203 		4,604 -1.0% 20.03 US$92,203
2020-06-23 2020-06-19 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
10,245 -2.4%
20.03
US$205,169 		10,245 -2.4% 20.03 US$205,169
2020-06-17 2020-06-15 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
2,194 -0.5%
19.13
US$41,966 		2,194 -0.5% 19.13 US$41,966
2020-06-17 2020-06-15 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
1,801 -0.4%
18.43
US$33,194 		1,801 -0.4% 18.43 US$33,194
2020-06-17 2020-06-15 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
1,005 -0.2%
17.48
US$17,569 		1,005 -0.2% 17.48 US$17,569
2020-06-12 2020-06-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
1,414 -0.3%
17.17
US$24,281 		1,414 -0.3% 17.17 US$24,281
2020-06-12 2020-06-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
8,586 -1.9%
16.35
US$140,404 		8,586 -1.9% 16.35 US$140,404
2020-06-03 2020-06-01 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
15,000 -100.0%
18.38
US$275,760 		15,000 -100.0% 18.38 US$275,760
2020-05-29 2020-05-28 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
600 -0.1%
20.01
US$12,003 		600 -0.1% 20.01 US$12,003
2020-05-29 2020-05-27 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
100 -0.0%
20.00
US$2,000 		100 -0.0% 20.00 US$2,000
2020-05-27 2020-05-26 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
200 -0.0%
20.00
US$4,000 		200 -0.0% 20.00 US$4,000
2020-05-27 2020-05-26 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
387 -0.1%
20.00
US$7,740 		387 -0.1% 20.00 US$7,740
2020-05-19 2020-05-18 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
1,700 -0.4%
20.00
US$34,004 		1,700 -0.4% 20.00 US$34,004
2020-05-19 2020-05-18 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
1,600 -0.4%
20.00
US$32,003 		1,600 -0.4% 20.00 US$32,003
2020-05-19 2020-05-15 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
2,200 -0.5%
20.00
US$44,000 		2,200 -0.5% 20.00 US$44,000
2020-05-19 2020-05-15 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
2,100 -0.5%
20.00
US$42,000 		2,100 -0.5% 20.00 US$42,000
2020-05-15 2020-05-13 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
200 -0.0%
17.32
US$3,463 		200 -0.0% 17.32 US$3,463
2020-05-15 2020-05-13 PlS Planned sale
Robinson William Hewitt
Non-Executive Director
4,800 -1.1%
16.80
US$80,642 		4,800 -1.1% 16.80 US$80,642
2020-05-13 2020-05-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
6,288 -1.3%
18.22
US$114,560 		6,288 -1.3% 18.22 US$114,560
2020-05-13 2020-05-11 PlS Planned sale
4.0
Serafini Tito

Chief Strategy Officer

Executive Director
3,712 -0.8%
17.64
US$65,465 		3,712 -0.8% 17.64 US$65,465
2020-05-08 2020-05-07 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
5,000 -100.0%
18.00
US$90,000 		5,000 -100.0% 18.00 US$90,000
2020-05-04 2020-05-01 PlS Planned sale
Greenberg Norman Michael

Chief Scientific Officer

Officer
10,000 -100.0%
15.03
US$150,276 		10,000 -100.0% 15.03 US$150,276
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