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Atara Biotherapeutics, Inc. — Insider Transactions

Form 4 filings by directors, officers, and 10%+ shareholders

SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.

Overview All Filings Annual Quarterly Insiders
Insider Title Type Shares Price Value Owns After Date
Haqq Christopher Chief Medical Officer Option Exercise 830 296,070 May 16, 2016
Soffer Gad Chief Operating Officer Option Exercise 4,146 142,271 May 16, 2016
Clark Mitchall G. Chief R & QA Officer Sale 4,153 $15.15 $62,918 83,759 May 16, 2016
Fust Matthew K Option Exercise 1,602 13,888 May 16, 2016
Ciechanover Isaac E. Chief Executive Officer Option Exercise 5,907 223,228 May 16, 2016
Gallagher Carol Giltner Sale 1,184 $15.96 $18,897 95,462 May 16, 2016
MCGRATH JOHN Chief Financial Officer Sale 5,395 $15.77 $85,079 88,822 May 16, 2016
Ciechanover Isaac E. Chief Executive Officer Sale 1,200 $20.12 $24,144 363,611 Apr 26, 2016
Ciechanover Isaac E. Chief Executive Officer Sale 1,200 $20.20 $24,240 364,811 Apr 11, 2016
Ciechanover Isaac E. Chief Executive Officer Sale 890 $20.04 $17,836 378,021 Mar 31, 2016
DOBMEIER ERIC Purchase 3,000 $13.86 $41,580 5,500 Mar 17, 2016
Gallagher Carol Giltner Option Exercise 817 95,463 Feb 17, 2016
MCGRATH JOHN Chief Financial Officer Sale 6,000 $15.49 $92,940 83,714 Feb 16, 2016
Soffer Gad Chief Operating Officer Option Exercise 9,615 130,075 Feb 16, 2016
Clark Mitchall G. Chief R & QA Officer Option Exercise 7,211 84,853 Feb 16, 2016
Ciechanover Isaac E. Chief Executive Officer Option Exercise 5,908 217,321 Feb 16, 2016
Haqq Christopher Chief Medical Officer Sale 3,208 $15.43 $49,499 295,240 Feb 16, 2016
Fust Matthew K Option Exercise 1,603 12,286 Feb 16, 2016
MCGRATH JOHN Chief Financial Officer Award / Grant 42,857 79,213 Feb 9, 2016
Ciechanover Isaac E. Chief Executive Officer Award / Grant 163,973 211,413 Feb 9, 2016
Clark Mitchall G. Chief R & QA Officer Award / Grant 42,857 77,642 Feb 9, 2016
Haqq Christopher Chief Medical Officer Award / Grant 55,900 297,619 Feb 9, 2016
Turner Heather D VP, General Counsel & Sec. Award / Grant 48,857 48,857 Feb 9, 2016
Soffer Gad Chief Operating Officer Award / Grant 48,447 120,460 Feb 9, 2016
Ciechanover Isaac E. Chief Executive Officer Sale 1,200 $20.32 $24,384 380,411 Jan 14, 2016
Ciechanover Isaac E. Chief Executive Officer Sale 800 $27.17 $21,736 381,611 Dec 31, 2015
DOBMEIER ERIC Purchase 2,500 $22.00 $55,000 2,500 Dec 16, 2015
SEIDENBERG BETH C Other 2,996 6,689 Dec 16, 2015
Ciechanover Isaac E. Chief Executive Officer Sale 700 $21.55 $15,085 384,211 Dec 14, 2015
Ciechanover Isaac E. Chief Executive Officer Sale 700 $36.21 $25,347 389,711 Dec 3, 2015
MCGRATH JOHN Chief Financial Officer Sale 6,000 $40.00 $240,000 36,356 Nov 30, 2015
Ciechanover Isaac E. Chief Executive Officer Sale 2,800 $34.74 $97,272 392,411 Nov 24, 2015
Fust Matthew K Option Exercise 1,602 10,683 Nov 16, 2015
Ciechanover Isaac E. Chief Executive Officer Option Exercise 5,908 47,440 Nov 16, 2015
Haqq Christopher Chief Medical Officer Option Exercise 829 241,719 Nov 16, 2015
Clark Mitchall G. Chief R & QA Officer Sale 4,153 $31.67 $131,526 34,785 Nov 16, 2015
Soffer Gad Chief Operating Officer Sale 1,644 $31.69 $52,098 72,013 Nov 16, 2015
Gallagher Carol Giltner Option Exercise 1,549 93,465 Nov 16, 2015
MCGRATH JOHN Chief Financial Officer Option Exercise 7,697 42,356 Nov 16, 2015
Ciechanover Isaac E. Chief Executive Officer Sale 600 $28.11 $16,866 396,411 Oct 21, 2015
Ciechanover Isaac E. Chief Executive Officer Sale 1,100 $35.26 $38,786 398,611 Oct 6, 2015
Ciechanover Isaac E. Chief Executive Officer Sale 1,500 $43.06 $64,590 402,411 Sep 23, 2015
SEIDENBERG BETH C Other 291,300 1,822,228 Sep 17, 2015
Ciechanover Isaac E. Chief Executive Officer Sale 800 $45.42 $36,336 409,411 Sep 11, 2015
Haqq Christopher Chief Medical Officer Sale 3,900 $42.10 $164,190 240,890 Aug 31, 2015
Ciechanover Isaac E. Chief Executive Officer Sale 1,500 $38.15 $57,225 378,682 Aug 27, 2015
Gallagher Carol Giltner Sale 1,279 $41.88 $53,565 91,916 Aug 24, 2015
Gallagher Carol Giltner Option Exercise 44,871 107,527 Aug 19, 2015
Fust Matthew K Option Exercise 1,603 9,081 Aug 17, 2015
MCGRATH JOHN Chief Financial Officer Sale 6,000 $49.38 $296,280 31,854 Aug 17, 2015