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Walker Karin L

Insider CIK 1559422 · CYCC Director · AFFY VP, Finance & CAO · PRTA See Remarks

Track record PRO

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Track record
See how this insider's past purchases performed 30 and 90 days later, and a conviction score on each buy.
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Trades across companies

TickerCodeTradeFiledSharesPriceValueOwned after
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2026-07-282026-07-3015,000— $00SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2026-07-282026-07-3015,000— $025,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C D To issuer2026-07-282026-07-3015,000$8.56 $128.4K10,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2026-07-282026-07-3015,000— $00SEC↗
PRTA PROTHENA CORP PUBLIC LTD C D To issuer2026-07-282026-07-3015,000$8.56 $128.4K10,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2026-07-282026-07-3015,000— —25,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2026-03-032026-03-05150,000— $0150,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award2025-07-282025-07-3025,000— $025,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2025-03-052025-03-0770,000— $070,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2024-02-272024-02-2954,000— $054,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2024-01-242024-01-245,000— $015,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2024-01-242024-01-245,000$13.53 $67.7K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2024-01-242024-01-245,000$34.00 $170.0K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-12-202023-12-205,000— $020,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-12-202023-12-203,322$37.45 $124.4K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-12-202023-12-205,000$13.53 $67.7K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-12-202023-12-201,678$36.68 $61.5K3,322SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-11-302023-11-305,000— $025,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-11-302023-11-305,000$13.53 $67.7K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-11-302023-11-305,000$34.00 $170.0K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-10-252023-10-255,000— $030,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-10-252023-10-255,000$13.53 $67.7K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-10-252023-10-252,917$41.38 $120.7K294SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-10-252023-10-25294$42.28 $12.4K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-10-252023-10-251,789$40.27 $72.0K3,211SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-09-192023-09-195,000— $0481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-09-192023-09-195,000$52.36 $261.8K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-09-192023-09-195,000$15.04 $75.2K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-08-182023-08-185,000— $05,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-08-182023-08-185,000$57.18 $285.9K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-08-182023-08-185,000$15.04 $75.2K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-07-192023-07-195,000— $010,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-07-192023-07-195,000$15.04 $75.2K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-07-192023-07-193,966$68.96 $273.5K1,034SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-07-192023-07-191,034$70.08 $72.5K0SEC↗
CYCC Cyclacel Pharmaceuticals, A Award deriv2023-06-302023-07-0342,438— $042,438SEC↗
CYCC Cyclacel Pharmaceuticals, A Award2023-06-302023-07-0321,219— $040,602SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-06-202023-06-205,000— $015,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-06-202023-06-202,000$67.88 $135.8K3,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-06-202023-06-202,471$69.49 $171.7K529SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-06-202023-06-20529$69.99 $37.0K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-06-202023-06-205,000$15.04 $75.2K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-05-192023-05-195,000— $020,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-05-192023-05-195,000$15.04 $75.2K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-05-192023-05-192,177$74.47 $162.1K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-05-192023-05-192,823$73.63 $207.9K2,177SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-04-192023-04-215,000— $025,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-04-192023-04-212,917$52.64 $153.6K2,083SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-04-192023-04-215,000$15.04 $75.2K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-04-192023-04-212,083$53.25 $110.9K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-03-202023-03-225,000— $030,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-03-202023-03-221,097$48.47 $53.2K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-03-202023-03-225,000$15.04 $75.2K5,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-03-202023-03-223,903$47.51 $185.4K1,097SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2023-03-152023-03-1720,000— $053,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-03-152023-03-179,431$48.14 $454.0K10,569SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2023-03-152023-03-1710,569$48.66 $514.3K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2023-03-152023-03-1720,000$15.04 $300.8K20,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2023-03-022023-03-0338,000— $038,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2022-11-182022-11-1810,000— $055,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2022-11-182022-11-1810,000$15.04 $150.4K10,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2022-11-182022-11-189,774$57.04 $557.5K226SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2022-11-182022-11-18226$58.27 $13.2K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2022-10-242022-10-2620,000— $065,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2022-10-242022-10-261,164$58.98 $68.7K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2022-10-242022-10-263,785$58.25 $220.5K1,164SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2022-10-242022-10-267,144$57.34 $409.6K4,949SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2022-10-242022-10-267,907$56.39 $445.9K12,093SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2022-10-242022-10-2620,000$15.04 $300.8K20,000SEC↗
CYCC Cyclacel Pharmaceuticals, A Award deriv2022-06-142022-06-1631,645— $031,645SEC↗
CYCC Cyclacel Pharmaceuticals, A Award2022-06-142022-06-1615,822— $019,383SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2022-02-232022-02-2545,500— $045,500SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2021-11-232021-11-264,519— $085,481SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2021-11-232021-11-261,819$58.43 $106.3K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2021-11-232021-11-264,519$15.04 $68.0K4,519SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2021-11-232021-11-262,700$57.51 $155.3K1,819SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2021-10-202021-10-223,000— $00SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise deriv2021-10-202021-10-2220,000— $090,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2021-10-202021-10-2219,115$60.00 $1.15M3,885SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2021-10-202021-10-2220,000$15.04 $300.8K20,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2021-10-202021-10-222,185$61.94 $135.3K0SEC↗
PRTA PROTHENA CORP PUBLIC LTD C S Sale2021-10-202021-10-221,700$60.91 $103.5K2,185SEC↗
PRTA PROTHENA CORP PUBLIC LTD C M Exercise2021-10-202021-10-223,000$29.81 $89.4K23,000SEC↗
CYCC Cyclacel Pharmaceuticals, A Award deriv2021-06-152021-06-174,748— $07,122SEC↗
CYCC Cyclacel Pharmaceuticals, A Award deriv2021-06-152021-06-172,374— $07,122SEC↗
CYCC Cyclacel Pharmaceuticals, A Award2021-06-152021-06-171,187— $03,561SEC↗
CYCC Cyclacel Pharmaceuticals, A Award2021-06-152021-06-172,374— $03,561SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2021-02-252021-02-2628,000— $028,000SEC↗
PRTA PROTHENA CORP PUBLIC LTD C D To issuer deriv2021-02-122021-02-1725,000— $00SEC↗
PRTA PROTHENA CORP PUBLIC LTD C D To issuer deriv2021-02-122021-02-1717,500— $00SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2021-02-122021-02-1715,909— $015,909SEC↗
PRTA PROTHENA CORP PUBLIC LTD C D To issuer deriv2021-02-122021-02-1725,000— $00SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2021-02-122021-02-1715,625— $015,625SEC↗
PRTA PROTHENA CORP PUBLIC LTD C D To issuer deriv2021-02-122021-02-1730,000— $00SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2021-02-122021-02-1715,625— $015,625SEC↗
PRTA PROTHENA CORP PUBLIC LTD C A Award deriv2021-02-122021-02-1718,796— $018,796SEC↗
CYCC Cyclacel Pharmaceuticals, A Award deriv2020-11-092020-11-125,200— $05,200SEC↗
PRTA Prothena Corp plc A Award deriv2020-02-252020-02-2740,000— $040,000SEC↗
PRTA Prothena Corp plc A Award deriv2019-02-272019-03-0135,000— $035,000SEC↗
PRTA Prothena Corp plc A Award deriv2018-06-212018-06-25110,000— $0110,000SEC↗
PRTA Prothena Corp plc A Award deriv2018-02-212018-02-2325,000— $025,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2017-09-282017-09-291,500— $017,500SEC↗
PRTA Prothena Corp plc S Sale2017-09-282017-09-291,500$70.00 $105.0K0SEC↗
PRTA Prothena Corp plc M Exercise2017-09-282017-09-291,500$27.81 $41.7K1,500SEC↗
PRTA Prothena Corp plc M Exercise deriv2017-07-172017-07-195,000— $00SEC↗
PRTA Prothena Corp plc S Sale2017-07-172017-07-193,600$65.21 $234.8K0SEC↗
PRTA Prothena Corp plc S Sale2017-07-172017-07-191,400$64.06 $89.7K3,600SEC↗
PRTA Prothena Corp plc M Exercise2017-07-172017-07-195,000$9.75 $48.8K5,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2017-04-172017-04-193,000— $05,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2017-04-172017-04-192,000— $03,000SEC↗
PRTA Prothena Corp plc S Sale2017-04-172017-04-192,900$52.21 $151.4K100SEC↗
PRTA Prothena Corp plc S Sale2017-04-172017-04-192,000$52.29 $104.6K0SEC↗
PRTA Prothena Corp plc S Sale2017-04-172017-04-19100$52.70 $5.3K0SEC↗
PRTA Prothena Corp plc M Exercise2017-04-172017-04-192,000$29.81 $59.6K2,000SEC↗
PRTA Prothena Corp plc M Exercise2017-04-172017-04-193,000$9.75 $29.3K3,000SEC↗
PRTA Prothena Corp plc A Award deriv2017-02-222017-02-2430,000— $030,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-10-132016-10-142,000— $05,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-10-132016-10-143,000— $08,000SEC↗
PRTA Prothena Corp plc S Sale2016-10-132016-10-141,100$53.61 $59.0K900SEC↗
PRTA Prothena Corp plc M Exercise2016-10-132016-10-143,000$9.75 $29.3K3,000SEC↗
PRTA Prothena Corp plc S Sale2016-10-132016-10-141,200$53.70 $64.4K1,800SEC↗
PRTA Prothena Corp plc S Sale2016-10-132016-10-141,800$54.74 $98.5K0SEC↗
PRTA Prothena Corp plc M Exercise2016-10-132016-10-142,000$29.81 $59.6K2,000SEC↗
PRTA Prothena Corp plc S Sale2016-10-132016-10-14900$54.71 $49.2K0SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-09-192016-09-217,000— $011,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-09-192016-09-215,000— $019,000SEC↗
PRTA Prothena Corp plc M Exercise2016-09-192016-09-215,000$27.81 $139.1K5,000SEC↗
PRTA Prothena Corp plc M Exercise2016-09-192016-09-217,000$9.75 $68.3K7,000SEC↗
PRTA Prothena Corp plc S Sale2016-09-192016-09-214,500$61.83 $278.2K0SEC↗
PRTA Prothena Corp plc S Sale2016-09-192016-09-21500$60.01 $30.0K4,500SEC↗
PRTA Prothena Corp plc S Sale2016-09-192016-09-212,700$61.83 $166.9K0SEC↗
PRTA Prothena Corp plc S Sale2016-09-192016-09-214,300$60.00 $258.0K2,700SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-04-132016-04-152,000— $018,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-04-132016-04-151,000— $024,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-04-132016-04-151,000— $07,000SEC↗
PRTA Prothena Corp plc S Sale2016-04-132016-04-151,000$45.28 $45.3K0SEC↗
PRTA Prothena Corp plc M Exercise2016-04-132016-04-152,000$9.75 $19.5K2,000SEC↗
PRTA Prothena Corp plc S Sale2016-04-132016-04-151,600$44.78 $71.6K400SEC↗
PRTA Prothena Corp plc S Sale2016-04-132016-04-15400$45.59 $18.2K0SEC↗
PRTA Prothena Corp plc M Exercise2016-04-132016-04-151,000$29.81 $29.8K1,000SEC↗
PRTA Prothena Corp plc M Exercise2016-04-132016-04-151,000$27.81 $27.8K1,000SEC↗
PRTA Prothena Corp plc S Sale2016-04-132016-04-151,000$45.29 $45.3K0SEC↗
PRTA Prothena Corp plc A Award deriv2016-02-242016-02-2625,000— $025,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-01-132016-01-152,000— $020,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2016-01-132016-01-152,000— $08,000SEC↗
PRTA Prothena Corp plc S Sale2016-01-132016-01-15500$51.82 $25.9K0SEC↗
PRTA Prothena Corp plc S Sale2016-01-132016-01-151,500$50.69 $76.0K500SEC↗
PRTA Prothena Corp plc M Exercise2016-01-132016-01-152,000$29.81 $59.6K2,000SEC↗
PRTA Prothena Corp plc S Sale2016-01-132016-01-15500$51.80 $25.9K0SEC↗
PRTA Prothena Corp plc S Sale2016-01-132016-01-151,500$50.67 $76.0K500SEC↗
PRTA Prothena Corp plc M Exercise2016-01-132016-01-152,000$9.75 $19.5K2,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2015-08-122015-08-145,000— $022,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2015-08-122015-08-142,000— $010,000SEC↗
PRTA Prothena Corp plc M Exercise2015-08-122015-08-145,000$9.75 $48.8K5,000SEC↗
PRTA Prothena Corp plc S Sale2015-08-122015-08-14324$63.27 $20.5K0SEC↗
PRTA Prothena Corp plc S Sale2015-08-122015-08-141,100$62.33 $68.6K0SEC↗
PRTA Prothena Corp plc S Sale2015-08-122015-08-14900$61.51 $55.4K1,100SEC↗
PRTA Prothena Corp plc M Exercise2015-08-122015-08-142,000$29.81 $59.6K2,000SEC↗
PRTA Prothena Corp plc S Sale2015-08-122015-08-142,500$61.65 $154.1K2,500SEC↗
PRTA Prothena Corp plc S Sale2015-08-122015-08-142,176$62.43 $135.8K324SEC↗
PRTA Prothena Corp plc A Award deriv2015-03-112015-03-1225,000— $025,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2015-02-102015-02-122,500— $027,000SEC↗
PRTA Prothena Corp plc S Sale2015-02-102015-02-122,500$21.53 $53.8K0SEC↗
PRTA Prothena Corp plc M Exercise2015-02-102015-02-122,500$9.75 $24.4K2,500SEC↗
PRTA Prothena Corp plc M Exercise deriv2014-12-092014-12-112,500— $029,500SEC↗
PRTA Prothena Corp plc S Sale2014-12-092014-12-112,500$20.00 $50.0K0SEC↗
PRTA Prothena Corp plc M Exercise2014-12-092014-12-112,500$9.75 $24.4K2,500SEC↗
PRTA Prothena Corp plc M Exercise deriv2014-10-162014-10-202,500— $032,000SEC↗
PRTA Prothena Corp plc M Exercise deriv2014-10-162014-10-232,500— $032,000SEC↗
PRTA Prothena Corp plc S Sale2014-10-162014-10-202,500$20.09 $50.2K0SEC↗
PRTA Prothena Corp plc M Exercise2014-10-162014-10-202,500$9.75 $24.4K2,500SEC↗
PRTA Prothena Corp plc S Sale2014-10-162014-10-232,500$20.09 $50.2K0SEC↗
PRTA Prothena Corp plc M Exercise2014-10-162014-10-232,500$9.75 $24.4K2,500SEC↗
PRTA Prothena Corp plc M Exercise deriv2014-08-122014-08-132,500— $034,500SEC↗
PRTA Prothena Corp plc S Sale2014-08-122014-08-132,500$20.74 $51.8K0SEC↗
PRTA Prothena Corp plc M Exercise2014-08-122014-08-132,500$9.75 $24.4K2,500SEC↗
PRTA Prothena Corp plc M Exercise deriv2014-06-062014-06-068,000— $037,000SEC↗
PRTA Prothena Corp plc S Sale2014-06-062014-06-068,000$21.58 $172.6K0SEC↗
PRTA Prothena Corp plc M Exercise2014-06-062014-06-068,000$9.75 $78.0K8,000SEC↗
PRTA Prothena Corp plc A Award deriv2014-02-042014-02-0612,000— $012,000SEC↗
PRTA Prothena Corp plc A Award deriv2013-06-032013-06-0545,000— $045,000SEC↗
AFFY AFFYMAX INC A Award deriv2012-10-022012-10-0360,000— $060,000SEC↗