908 DEVICES INC MASS
COM · Common Stock · CUSIP 65443P102
- SectorTechnology
- IndustryLaboratory Analytical Instruments
- HeadquartersBurlington, MA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 32.0m as of 2023-03-13, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $8.57. Options: 3 managers hold calls ($41.9k notional), 2 hold puts ($33.5k).
Trends to Q1 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 81 |
| Q4 2022 | 93 |
| Q1 2023 | 85 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 50 | 38 |
| Q1 2023 | 44 | 44 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $1.4m | $37.0k | 0.03 |
| Q4 2022 | $691.5k | $54.4k | 0.08 |
| Q1 2023 | $41.9k | $33.5k | 0.80 |
Biggest buyers
| Granahan Investment Management, LLC | Added | +654.1k |
| AMERIPRISE FINANCIAL INC | Added | +627.7k |
| PLATINUM INVESTMENT MANAGEMENT LTD | Added | +348.6k |
| ARK Investment Management LLC | Added | +303.4k |
| Iron Triangle Partners LP | Added | +175.3k |
| MILLENNIUM MANAGEMENT LLC | Added | +81.8k |
| JANE STREET GROUP, LLC | New | +53.7k |
| MORGAN STANLEY | Added | +31.1k |
| GSA CAPITAL PARTNERS LLP | New | +26.2k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +22.9k |
Biggest sellers
| FRED ALGER MANAGEMENT, LLC | Reduced | -998.7k |
| RTW INVESTMENTS, LP | Sold out | -312.0k |
| BANK OF AMERICA CORP /DE/ | Reduced | -199.6k |
| EMERALD ADVISERS, LLC | Sold out | -89.3k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -80.3k |
| BlackRock Inc. | Reduced | -70.4k |
| EMERALD MUTUAL FUND ADVISERS TRUST | Sold out | -65.1k |
| Squarepoint Ops LLC | Reduced | -49.3k |
| Swiss National Bank | Sold out | -45.7k |
| TWO SIGMA INVESTMENTS, LP | Sold out | -45.0k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $24.9k2.9k shares |
| SIMPLEX TRADING, LLC | Added | $17.0k2.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $33.5k3.9k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| First Light Asset Management, LLC 13G · institution +4.2 pts · filed 2026-02-17 | 17.1% |
| ARCH Venture Fund VII, L.P. 13G · exempt (held before listing) -1.2 pts · filed 2026-08-14 | 14.1% |
| AWM Investment Company, Inc. 13G · institution -2.9 pts · filed 2026-08-14 | 11.8% |
| ARK Investment Management LLC 13G · institution +0.4 pts · filed 2026-08-14 | 5.3% |
Fell to 5% or below in the last year: BlackRock, Inc. (4.9%, 2026-10-27), STATE STREET CORP (1.6%, 2026-02-09)
Insider purchases and sales in Q1 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 4 | $3.3m | — |
| Q1 2022 | 0 | — | 3 | $2.0m | — |
| Q2 2022 | 0 | — | 6 | $2.5m | — |
| Q3 2022 | 0 | — | 4 | $4.4m | — |
| Q4 2022 | 1 | $24.9k | 1 | $673.2k | — |
| Q1 2023 | 0 | — | 5 | $885.2k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-02-16 | Knopp Kevin J. President and CEO, director | Sold | $49.0k4.8k shares |
| 2023-02-15 | Knopp Kevin J. President and CEO, director | Sold | $156.0k15.2k shares |
| 2023-02-02 | Knopp Kevin J. President and CEO, director | Sold | $420.4k40.0k shares |
| 2023-02-02 | Brown Christopher D. Chief Technology Officer | Sold | $100.3k10.0k shares |
| 2023-02-02 | Griffith Joseph H. IV Chief Financial Officer | Sold | $32.8k3.3k shares |
| 2023-02-02 | Turner Michael S. VP, General Counsel | Sold | $28.5k2.8k shares |
| 2023-02-01 | Knopp Kevin J. President and CEO, director | Sold | $37.9k4.0k shares |
| 2023-02-01 | Griffith Joseph H. IV Chief Financial Officer | Sold | $16.8k1.8k shares |
| 2023-02-01 | Fitzpatrick Maura VP, Product Management & Mktg | Sold | $14.7k1.6k shares |
| 2023-02-01 | Turner Michael S. VP, General Counsel | Sold | $14.5k1.6k shares |
| 2023-02-01 | Brown Christopher D. Chief Technology Officer | Sold | $14.3k1.6k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2023
| Manager | Shares | Change |
|---|---|---|
| ARK Investment Management LLC 0.24% of their portfolio | 4.0m $34.3m | Added +303.4k |
| EVENTIDE ASSET MANAGEMENT, LLC 0.35% of their portfolio | 2.2m $19.2m | Unchanged |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 1.9m $16.1m | Added +627.7k |
| FRED ALGER MANAGEMENT, LLC 0.08% of their portfolio | 1.8m $15.5m | Reduced -998.7k |
| Granahan Investment Management, LLC 0.46% of their portfolio | 1.8m $15.1m | Added +654.1k |
| BlackRock Inc. 0.00% of their portfolio | 1.7m $14.6m | Reduced -70.4k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.5m $12.9m | Reduced -562 |
| Iron Triangle Partners LP 1.30% of their portfolio | 1.1m $9.0m | Added +175.3k |
| PLATINUM INVESTMENT MANAGEMENT LTD 0.26% of their portfolio | 875.4k $7.5m | Added +348.6k |
| STATE STREET CORP 0.00% of their portfolio | 802.2k $6.9m | Added +7.6k |
| Sumitomo Mitsui Trust Group, Inc. 0.00% of their portfolio | 571.1k $4.9m | Added +12.0k |
| Amova Asset Management Americas, Inc. 0.05% of their portfolio | 571.1k $4.3m | Added +12.0k |
| Tao Capital Management LP 3.89% of their portfolio | 569.0k $4.9m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 444.9k $3.8m | Added +22.9k |
| Sands Capital Alternatives, LLC 0.69% of their portfolio | 326.4k $2.8m | Unchanged |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 247.1k $2.1m | Added +81.8k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 179.2k $1.5m | Reduced -14.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 161.2k $1.4m | Added +6 |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 152.1k $1.3m | Reduced -80.3k |
| MORGAN STANLEY 0.00% of their portfolio | 113.3k $974.7k | Added +31.1k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 81.0k $696.7k | Added +170 |
| Bruce & Co., Inc. 0.16% of their portfolio | 68.3k $587.3k | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 60.4k $519.5k | Added +2.9k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 58.1k $500.0k | Reduced -7.6k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 53.7k $461.8k | New |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 42.5k $365.6k | Reduced -2.2k |
| LPL Financial LLC 0.00% of their portfolio | 42.1k $361.9k | Added +17.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 41.7k $358.7k | Reduced -199.6k |
| Cubist Systematic Strategies, LLC 0.00% of their portfolio | 34.6k $297.5k | Added +12.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 32.3k $278.0k | Added +404 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 31.4k $270.3k | Added +5.2k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 28.2k $243.0k | Reduced -34.2k |
| PRIMECAP MANAGEMENT CO/CA/ 0.00% of their portfolio | 26.9k $231.1k | Unchanged |
| GSA CAPITAL PARTNERS LLP 0.02% of their portfolio | 26.2k $226.0k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 23.6k $203.0k | Reduced -31.6k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 23.5k $191.0k | Unchanged |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 23.2k $199.1k | Reduced -499 |
| Squarepoint Ops LLC 0.00% of their portfolio | 22.2k $190.5k | Reduced -49.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 22.1k $190.1k | Added +2.3k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 21.2k $182.4k | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 18.8k $161.9k | Added +3.3k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 15.6k $134.0k | Added +15.5k |
| UBS Group AG 0.00% of their portfolio | 15.0k $129.1k | Added +10.8k |
| Cresset Asset Management, LLC 0.00% of their portfolio | 14.7k $126.3k | Reduced -1 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 14.6k $125.5k | Added +5.3k |
| Arete Wealth Advisors, LLC 0.01% of their portfolio | 14.3k $123.0k | New |
| Values First Advisors, Inc. 0.07% of their portfolio | 13.5k $115.7k | New |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 12.0k $103.2k | Reduced -16.9k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 12.0k $103.1k | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 11.6k $100.2k | Reduced -1.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 11.4k $98.3k | Reduced -8.4k |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 11.2k $96.1k | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 11.2k $96.1k | Added +5.0k |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 10.7k $91.7k | Added +320 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 10.5k $90.7k | Unchanged |
| CITIGROUP INC 0.00% of their portfolio | 10.3k $88.3k | Added +9.6k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 8.9k $76.6k | Reduced -21.6k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 8.2k $70.6k | Reduced -17.0k |
| Allworth Financial LP 0.00% of their portfolio | 5.3k $45.3k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 5.0k $43.2k | Added +4.4k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 4.4k $37.8k | Unchanged |
| AMALGAMATED BANK 0.00% of their portfolio | 2.5k $21.0k | Reduced -482 |
| Legal & General Group Plc 0.00% of their portfolio | 2.2k $19.2k | Reduced -4.7k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 2.2k $18.5k | Added +663 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.4k $12.4k | Unchanged |
| Metropolitan Life Insurance Co/NY 0.00% of their portfolio | 1.4k $12.4k | Unchanged |
| US BANCORP \DE\ 0.00% of their portfolio | 1.2k $10.8k | Reduced -2.5k |
| FMR LLC 0.00% of their portfolio | 772 $6.6k | Added +359 |
| GPS Wealth Strategies Group, LLC 0.00% of their portfolio | 475 $4.1k | New |
| BAILLIE GIFFORD & CO 0.00% of their portfolio | 249 $2.1k | Unchanged |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 239 $2.1k | Reduced -45 |
| PRIVATE TRUST CO NA 0.00% of their portfolio | 216 $1.9k | Unchanged |
| Glassman Wealth Services 0.00% of their portfolio | 120 $1.0k | New |
| PENSION & WEALTH MANAGEMENT ADVISORS, INC. 0.00% of their portfolio | 100 $860 | Unchanged |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 95 $817 | Added +37 |
| FinTrust Capital Advisors, LLC 0.00% of their portfolio | 83 $633 | Unchanged |
| CWM, LLC 0.00% of their portfolio | 68 $1.0k | Added +36 |
| TCI Wealth Advisors, Inc. 0.00% of their portfolio | 66 $568 | New |
| Versant Capital Management, Inc 0.00% of their portfolio | 56 $482 | New |
| Bogart Wealth, LLC 0.00% of their portfolio | 51 $439 | New |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 23 $0 | Reduced -9 |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 16 $138 | New |
| QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio | 14 $121 | Reduced -61 |
| Manchester Capital Management LLC 0.00% of their portfolio | 10 $86 | Added +9 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |