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Mersana Therapeutics, Inc. (MRSN)

NasdaqGS - NasdaqGS Real-time price. Currency in USD

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3.4600

+0.1000

(+2.98%)

At close: 04:00PM EDT

3.5800

+0.12

(+3.47%)

After hours:

05:36PM EDT

Major holders

Insider roster

Insider transactions

Currency in USD

Insider purchases - Last 6 months	Shares	Trans
Purchases	199,242	9
Sales	65,329	7
Net shares purchased (sold)	133,913	16
Total insider shares held	1.6M	N/A
% net shares purchased (sold)	9.10%	N/A

Net institutional purchases - Prior quarter to latest quarter	Shares
Net shares purchased (sold)	N/A
% change in institutional shares held	N/A

Insider transactions reported - last two years

Insider	Transaction	Type	Value	Date	Shares
PROTOPAPAS ANNA Director	Sale at price 2.71 per share.	Direct	79,671	16 Jan 2024	29,399
CARVAJAL ALEJANDRA V. Officer	Sale at price 2.71 per share.	Direct	11,873	16 Jan 2024	4,381
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 2.71 per share.	Direct	28,208	16 Jan 2024	10,409
DESCHUYTNER BRIAN Chief Operating Officer	Sale at price 2.71 per share.	Direct	25,276	16 Jan 2024	9,327
MANDELIA ASHISH Officer	Sale at price 2.71 per share.	Direct	13,618	16 Jan 2024	5,025
MISRA TUSHAR PH.D. Officer	Sale at price 2.71 per share.	Direct	9,097	16 Jan 2024	3,357
BALA MOHAN Officer	Sale at price 2.71 per share.	Direct	9,298	16 Jan 2024	3,431
PROTOPAPAS ANNA Director		Direct		12 Jan 2024	86,958
CARVAJAL ALEJANDRA V. Officer		Direct		12 Jan 2024	11,458
LOWINGER TIMOTHY B Chief Technology Officer		Direct		12 Jan 2024	29,375
DESCHUYTNER BRIAN Chief Operating Officer		Direct		12 Jan 2024	26,458
MANDELIA ASHISH Officer		Direct		12 Jan 2024	12,780
MISRA TUSHAR PH.D. Officer		Direct		12 Jan 2024	8,541
BALA MOHAN Officer		Direct		12 Jan 2024	8,750
MOTT DAVID M Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	02 Jan 2024	8,810
DERE WILLARD H Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	02 Jan 2024	6,112
BALA MOHAN Officer	Sale at price 1.13 per share.	Direct	2,161	26 Oct 2023	1,912
BALA MOHAN Officer		Direct		25 Oct 2023	6,250
MOTT DAVID M Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	02 Oct 2023	15,873
DERE WILLARD H Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	02 Oct 2023	11,011
PROTOPAPAS ANNA Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	11 Sept 2023	16,643
MISRA TUSHAR PH.D. Officer	Sale at price 1.18 per share.	Direct	2,251	17 Aug 2023	1,908
MISRA TUSHAR PH.D. Officer		Direct		16 Aug 2023	6,250
MOTT DAVID M Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	03 Jul 2023	6,079
DERE WILLARD H Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	03 Jul 2023	4,217
MOTT DAVID M Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	08 Jun 2023	14,467
HEGE KRISTEN Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	08 Jun 2023	14,467
DERE WILLARD H Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	08 Jun 2023	14,467
ALLEVA LAWRENCE M Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	08 Jun 2023	14,467
HUBER MARTIN H JR Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	08 Jun 2023	14,467
HACK ANDREW A. F. Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	08 Jun 2023	14,467
DIAZ ALLENE M. Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	08 Jun 2023	14,467
CARVAJAL ALEJANDRA V. Officer	Sale at price 3.89 per share.	Direct	15,342	27 Apr 2023	3,944
CARVAJAL ALEJANDRA V. Officer		Direct		26 Apr 2023	13,250
MOTT DAVID M Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	03 Apr 2023	4,866
DERE WILLARD H Director	Stock Award(Grant) at price 0.00 per share.	Direct	0	03 Apr 2023	3,375
PROTOPAPAS ANNA Chief Executive Officer	Sale at price 5.74 per share.	Direct	99,566	17 Jan 2023	17,346
CARVAJAL ALEJANDRA V. Officer	Sale at price 5.74 per share.	Direct	4,489	17 Jan 2023	782
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 5.74 per share.	Direct	35,777	17 Jan 2023	6,233
DESCHUYTNER BRIAN Chief Financial Officer	Sale at price 5.74 per share.	Direct	29,452	17 Jan 2023	5,131
MANDELIA ASHISH Officer	Sale at price 5.74 per share.	Direct	20,520	17 Jan 2023	3,575
YANG ARVIN M.D. PH.D. Officer	Sale at price 5.74 per share.	Direct	12,680	17 Jan 2023	2,209
MISRA TUSHAR PH.D. Officer	Sale at price 5.74 per share.	Direct	2,629	17 Jan 2023	458
PROTOPAPAS ANNA Chief Executive Officer		Direct		13 Jan 2023	55,708
CARVAJAL ALEJANDRA V. Officer		Direct		13 Jan 2023	2,500
LOWINGER TIMOTHY B Chief Technology Officer		Direct		13 Jan 2023	20,001
DESCHUYTNER BRIAN Chief Financial Officer		Direct		13 Jan 2023	16,458
MANDELIA ASHISH Officer		Direct		13 Jan 2023	10,136
YANG ARVIN M.D. PH.D. Officer		Direct		13 Jan 2023	7,084
MISRA TUSHAR PH.D. Officer		Direct		13 Jan 2023	1,459
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 1.40 - 1.53 per share.	Direct	52,658	14 Dec 2022	35,361
YANG ARVIN M.D. PH.D. Officer	Sale at price 6.59 per share.	Direct	36,423	01 Dec 2022	5,527
YANG ARVIN M.D. PH.D. Officer		Direct		30 Nov 2022	18,500
MISRA TUSHAR PH.D. Officer	Sale at price 7.10 per share.	Direct	13,341	17 Aug 2022	1,879
MISRA TUSHAR PH.D. Officer		Direct		16 Aug 2022	6,250
HACK ANDREW A. F. Director	Purchase at price 3.20 - 3.28 per share.	Indirect	311,958	02 Jun 2022	95,519
HACK ANDREW A. F. Director	Purchase at price 3.17 - 3.29 per share.	Indirect	854,175	26 May 2022	265,155
HACK ANDREW A. F. Director	Purchase at price 3.35 - 3.49 per share.	Indirect	746,437	23 May 2022	215,599
PROTOPAPAS ANNA Chief Executive Officer	Stock Gift at price 0.00 per share.	Direct	0	20 May 2022	240,244
HACK ANDREW A. F. Director	Purchase at price 3.10 - 3.35 per share.	Indirect	1,137,660	18 May 2022	350,000
CARVAJAL ALEJANDRA V. Officer	Sale at price 3.69 per share.	Direct	14,568	26 Apr 2022	3,948
CARVAJAL ALEJANDRA V. Officer		Direct		26 Apr 2022	13,250
HACK ANDREW A. F. Director	Purchase at price 4.05 per share.	Indirect	2,500,000	13 Apr 2022	617,284
HACK ANDREW A. F. Director	Purchase at price 4.18 per share.	Indirect	2,499,880	12 Apr 2022	598,086
HACK ANDREW A. F. Director	Purchase at price 4.42 per share.	Indirect	5,022,724	07 Feb 2022	1,136,363
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 5.92 per share.	Direct	28,067	18 Jan 2022	4,741
MANDELIA ASHISH Officer	Sale at price 5.92 per share.	Direct	11,733	18 Jan 2022	1,982
PROTOPAPAS ANNA Chief Executive Officer		Direct		14 Jan 2022	38,958
LOWINGER TIMOTHY B Chief Technology Officer		Direct		14 Jan 2022	15,209
DESCHUYTNER BRIAN Chief Financial Officer		Direct		14 Jan 2022	10,208
MANDELIA ASHISH Officer		Direct		14 Jan 2022	5,353
HACK ANDREW A. F. Director	Purchase at price 6.15 per share.	Indirect	5,012,250	30 Dec 2021	815,000
HACK ANDREW A. F. Director	Purchase at price 5.75 per share.	Indirect	5,031,250	29 Dec 2021	875,000
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 1.40 per share.	Direct	63,830	20 Dec 2021	45,593
YANG ARVIN M.D. PH.D. Officer	Sale at price 6.81 per share.	Direct	37,639	01 Dec 2021	5,527
YANG ARVIN M.D. PH.D. Officer		Direct		30 Nov 2021	18,500
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 11.01 per share.	Direct	24,398	20 Aug 2021	2,216
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 6.16 per share.	Direct	13,651	20 Aug 2021	2,216
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 12.11 per share.	Direct	26,969	20 Jul 2021	2,227
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 6.16 per share.	Direct	13,718	20 Jul 2021	2,227
PROTOPAPAS ANNA Chief Executive Officer	Sale at price 12.02 - 12.47 per share.	Direct	513,186	19 Jul 2021	41,944
KAUFMAN MICHAEL J Officer	Sale at price 12.02 - 12.47 per share.	Direct	147,897	19 Jul 2021	12,088
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 12.02 - 12.47 per share.	Direct	199,076	19 Jul 2021	16,271
PROTOPAPAS ANNA Chief Executive Officer		Direct		15 Jul 2021	100,000
KAUFMAN MICHAEL J Officer		Direct		15 Jul 2021	40,000
LOWINGER TIMOTHY B Chief Technology Officer		Direct		15 Jul 2021	40,000
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 1.40 per share.	Direct	28,000	08 Jul 2021	20,000
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 13.60 per share.	Direct	25,650	01 Jul 2021	1,886
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	6,644	01 Jul 2021	1,886
MANDELIA ASHISH Officer	Sale at price 13.60 per share.	Direct	12,811	01 Jul 2021	942
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 13.78 per share.	Direct	30,592	21 Jun 2021	2,220
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	13,670	21 Jun 2021	2,220
ALLEVA LAWRENCE M Director	Purchase at price 14.38 per share.	Indirect	14,883	01 Jun 2021	1,035
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 14.10 per share.	Direct	57,838	20 May 2021	4,102
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	20,300	20 May 2021	4,102
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 15.91 per share.	Direct	65,263	20 Apr 2021	4,102
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	20,300	20 Apr 2021	4,102
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 17.50 per share.	Direct	143,552	22 Mar 2021	8,203
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	40,596	22 Mar 2021	8,203
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 20.01 per share.	Direct	164,142	22 Feb 2021	8,203
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	40,596	22 Feb 2021	8,203
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 21.54 per share.	Direct	176,693	20 Jan 2021	8,203
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	40,596	20 Jan 2021	8,203
MANDELIA ASHISH Officer	Sale at price 21.28 per share.	Direct	11,598	19 Jan 2021	545
PROTOPAPAS ANNA Chief Executive Officer		Direct		15 Jan 2021	17,709
KAUFMAN MICHAEL J Officer		Direct		15 Jan 2021	6,667
LOWINGER TIMOTHY B Chief Technology Officer		Direct		15 Jan 2021	7,917
DESCHUYTNER BRIAN Officer		Direct		15 Jan 2021	3,959
MANDELIA ASHISH Officer		Direct		15 Jan 2021	834
HACK ANDREW A. F. Director	Purchase at price 18.16 - 18.52 per share.	Indirect	4,590,000	12 Jan 2021	250,000
MANDELIA ASHISH Officer	Sale at price 26.76 per share.	Direct	6,610	04 Jan 2021	247
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 1.40 per share.	Direct	12,600	28 Dec 2020	9,000
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 25.59 - 25.60 per share.	Direct	209,956	21 Dec 2020	8,203
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	40,596	21 Dec 2020	8,203
LOWINGER TIMOTHY B Officer	Sale at price 23.04 - 23.06 per share.	Direct	189,079	20 Nov 2020	8,203
LOWINGER TIMOTHY B Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	40,596	20 Nov 2020	8,203
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 16.74 - 17.50 per share.	Direct	140,435	21 Oct 2020	8,203
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 1.40 - 7.43 per share.	Direct	73,901	21 Oct 2020	25,054
LOWINGER TIMOTHY B Chief Technology Officer	Sale at price 20.66 per share.	Direct	425,832	21 Sept 2020	20,614
LOWINGER TIMOTHY B Chief Technology Officer	Conversion of Exercise of derivative security at price 3.51 - 6.16 per share.	Direct	40,596	21 Sept 2020	8,203
JACK EVA M Officer and Treasurer	Sale at price 22.00 per share.	Direct	775,456	14 Sept 2020	35,248
JACK EVA M Officer and Treasurer	Conversion of Exercise of derivative security at price 1.53 per share.	Direct	53,929	14 Sept 2020	35,248
MANDELIA ASHISH Officer	Sale at price 22.49 per share.	Direct	76,084	02 Jul 2020	3,383
ALLEVA LAWRENCE M Director	Purchase at price 22.94 - 22.97 per share.	Direct	24,901	01 Jun 2020	1,085
SONSINI PETER W Beneficial Owner of more than 10% of a Class of Security	Stock Gift at price 0.00 per share.	Indirect	0	06 May 2020	1,146
SANDELL SCOTT D Beneficial Owner of more than 10% of a Class of Security	Sale at price 8.98 - 9.22 per share.	Indirect	19,865	14 Apr 2020	2,198
BASKETT FOREST Beneficial Owner of more than 10% of a Class of Security	Sale at price 8.50 per share.	Indirect	177,775	13 Apr 2020	20,914
BASKETT FOREST Beneficial Owner of more than 10% of a Class of Security	Sale at price 8.58 per share.	Indirect	27,358	13 Apr 2020	3,190
FLORENCE ANTHONY A JR Beneficial Owner of more than 10% of a Class of Security	Sale at price 8.50 per share.	Indirect	177,775	13 Apr 2020	20,914
SANDELL SCOTT D Beneficial Owner of more than 10% of a Class of Security	Sale at price 8.50 per share.	Indirect	177,775	13 Apr 2020	20,914
MOTT DAVID M Director	Purchase at price 7.74 per share.	Direct	4,168,756	07 Apr 2020	538,599
HACK ANDREW A. F. Director	Purchase at price 7.74 per share.	Indirect	26,669,463	07 Apr 2020	3,445,667
NEW ENTERPRISE ASSOCIATES 14, L.P. Beneficial Owner of more than 10% of a Class of Security	Sale at price 2.91 per share.	Indirect	3,524	28 Aug 2019	1,211
NEW ENTERPRISE ASSOCIATES 14, L.P. Beneficial Owner of more than 10% of a Class of Security	Conversion of Exercise of derivative security at price 0.05 per share.	Indirect	3,530	28 Aug 2019	70,593
MOTT DAVID M Director and Beneficial Owner of more than 10% of a Class of Security	Purchase at price 4.00 per share.	Indirect	15,000,000	05 Mar 2019	3,750,000
NEW ENTERPRISE ASSOCIATES 14, L.P. Beneficial Owner of more than 10% of a Class of Security	Purchase at price 4.00 per share.	Indirect	15,000,000	05 Mar 2019	3,750,000
LOWINGER TIMOTHY B Officer	Sale at price 11.63 per share.	Direct	40,705	24 Sept 2018	3,500
LOWINGER TIMOTHY B Officer	Conversion of Exercise of derivative security at price 1.40 per share.	Direct	4,900	24 Sept 2018	3,500
LOWINGER TIMOTHY B Officer	Sale at price 13.15 per share.	Direct	46,025	27 Aug 2018	3,500
LOWINGER TIMOTHY B Officer	Conversion of Exercise of derivative security at price 7.43 per share.	Direct	26,005	27 Aug 2018	3,500
LOWINGER TIMOTHY B Officer	Sale at price 11.06 per share.	Direct	38,710	23 Jul 2018	3,500
LOWINGER TIMOTHY B Officer	Conversion of Exercise of derivative security at price 1.40 per share.	Direct	14,000	03 Jul 2018	10,000
LOWINGER TIMOTHY B Officer	Conversion of Exercise of derivative security at price 6.98 per share.	Direct	41,259	21 Feb 2018	5,911
FOSTER WAYNE CPA Officer	Conversion of Exercise of derivative security at price 1.53 - 6.98 per share.	Direct	44,582	30 Jan 2018	14,705
PROTOPAPAS ANNA Chief Executive Officer	Conversion of Exercise of derivative security at price 1.53 per share.	Direct	15,938	20 Dec 2017	10,417
BASKETT FOREST Beneficial Owner of more than 10% of a Class of Security	Purchase at price 15.00 per share.	Indirect	15,000,000	03 Jul 2017	1,000,000
BASKETT FOREST Beneficial Owner of more than 10% of a Class of Security		Indirect		03 Jul 2017	7,140,138
BARRETT PETER Beneficial Owner of more than 10% of a Class of Security	Purchase at price 15.00 per share.	Indirect	15,000,000	03 Jul 2017	1,000,000
BARRETT PETER Beneficial Owner of more than 10% of a Class of Security		Indirect		03 Jul 2017	7,140,138
BARRETT MICHAEL JAMES PH.D. Beneficial Owner of more than 10% of a Class of Security	Purchase at price 15.00 per share.	Indirect	15,000,000	03 Jul 2017	1,000,000

Straits Times Index3,292.93-3.96(-0.12%)

S&P 5005,127.79+63.59(+1.26%)

Dow38,675.68+449.98(+1.18%)

Nasdaq16,156.33+315.33(+1.99%)

Bitcoin USD63,763.21+22.00(+0.03%)

CMC Crypto 2001,326.73+49.75(+3.89%)

Mersana Therapeutics, Inc. (MRSN)

Insider transactions

Insider transactions reported - last two years

Straits Times Index
3,292.93
-3.96(-0.12%)

S&P 500
5,127.79
+63.59(+1.26%)

Dow
38,675.68
+449.98(+1.18%)

Nasdaq
16,156.33
+315.33(+1.99%)

Bitcoin USD
63,763.21
+22.00(+0.03%)

CMC Crypto 200
1,326.73
+49.75(+3.89%)