908 Devices Inc. (MASS) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Time period
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2024-01-31
2:08 pm
Purchase
2023-12-3113G908 Devices Inc.
MASS
BlackRock Inc.
BLK
1,786,753
5.500%
23,246increase
(+1.32%)
Filing
History
2024-01-29
4:01 pm
Purchase
2023-12-3113G908 Devices Inc.
MASS
ARK Investment Management LLC4,346,579
13.420%
657,104increase
(+17.81%)
Filing
History
2023-11-13
4:01 pm
Sale
2023-10-3113G908 Devices Inc.
MASS
Alger Associates, Inc.1,227,494
3.800%
-1,577,722decrease
(-56.24%)
Filing
History
2023-02-14
4:06 pm
Sale
2022-12-3113G908 Devices Inc.
MASS
Alger Associates, Inc.2,805,216
8.800%
-653,887decrease
(-18.90%)
Filing
History
2023-02-14
1:24 pm
Purchase
2022-12-3113G908 Devices Inc.
MASS
Eventide Asset Management, LLC2,230,665
7.000%
2,230,665increase
(New Position)
Filing
History
2023-02-13
4:06 pm
Purchase
2022-12-3113G908 Devices Inc.
MASS
ARCH Venture Fund VII, L.P.5,744,599
18.100%
12,313increase
(+0.21%)
Filing
History
2023-02-10
10:43 am
Purchase
2022-12-3113G908 Devices Inc.
MASS
ARK Investment Management LLC3,689,475
11.630%
558,092increase
(+17.82%)
Filing
History
2023-02-01
4:54 pm
Sale
2022-12-3113G908 Devices Inc.
MASS
BlackRock Inc.
BLK
1,763,507
5.600%
-555,387decrease
(-23.95%)
Filing
History
2022-10-11
06:28 am
Purchase
2022-09-3013G908 Devices Inc.
MASS
Alger Associates, Inc.3,459,103
10.900%
3,459,103increase
(New Position)
Filing
History
2022-07-08
4:56 pm
Sale
2022-06-3013G908 Devices Inc.
MASS
BlackRock Inc.
BLK
2,318,894
7.400%
-1,390,167decrease
(-37.48%)
Filing
History
2022-02-10
4:44 pm
Sale
2021-12-3113G908 Devices Inc.
MASS
Razor's Edge Fund LP3,599
0.000%
-1,432,520decrease
(-99.75%)
Filing
History
2022-02-10
11:10 am
Purchase
2022-01-3113G908 Devices Inc.
MASS
ARK Investment Management LLC3,131,383
10.100%
134,990increase
(+4.51%)
Filing
History
2022-02-09
2:01 pm
Purchase
2021-12-3113G908 Devices Inc.
MASS
ARK Investment Management LLC2,996,393
9.660%
226,632increase
(+8.18%)
Filing
History
2022-02-08
3:03 pm
Purchase
2021-12-3113G908 Devices Inc.
MASS
ARCH Venture Fund VII, L.P.5,732,286
18.500%
6,440increase
(+0.11%)
Filing
History
2022-01-27
5:13 pm
Unchanged
2021-12-3113G908 Devices Inc.
MASS
BlackRock Inc.
BLK
3,709,061
13.300%
0
(Unchanged)
Filing
History
2022-01-26
09:16 am
Purchase
2021-12-3113G908 Devices Inc.
MASS
BlackRock Inc.
BLK
3,709,061
13.300%
769,583increase
(+26.18%)
Filing
History
2021-09-10
2:46 pm
Purchase
2021-08-3113G908 Devices Inc.
MASS
ARK Investment Management LLC2,769,761
10.020%
2,769,761increase
(New Position)
Filing
History
2021-09-09
4:20 pm
Purchase
2021-08-3113G908 Devices Inc.
MASS
BlackRock Inc.
BLK
2,939,478
10.600%
2,939,478increase
(New Position)
Filing
History
2021-02-16
06:25 am
Purchase
2020-12-3113G908 Devices Inc.
MASS
Razor's Edge Fund LP1,436,119
5.300%
1,436,119increase
(New Position)
Filing
History
2021-02-04
2:03 pm
Purchase
2020-12-3113G908 Devices Inc.
MASS
ARCH Venture Fund VII, L.P.5,725,846
21.100%
5,725,846increase
(New Position)
Filing
History
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