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 ($2.5m this quarter). Holder counts are more reliable. Shares outstanding: 34.7m as of 2024-08-02, 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 ≈ $5.15. Options: 5 managers hold calls ($89.4k notional), 5 hold puts ($31.9k).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 81 |
| Q4 2022 | 93 |
| Q1 2023 | 85 |
| Q2 2023 | 87 |
| Q3 2023 | 84 |
| Q4 2023 | 80 |
| Q1 2024 | 76 |
| Q2 2024 | 91 |
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 |
| Q2 2023 | 38 | 44 |
| Q3 2023 | 38 | 35 |
| Q4 2023 | 42 | 29 |
| Q1 2024 | 29 | 40 |
| Q2 2024 | 53 | 38 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $210.9k | $26.3k | 0.12 |
| Q4 2023 | $545.2k | $421.6k | 0.77 |
| Q1 2024 | $348.9k | $308.7k | 0.88 |
| Q2 2024 | $89.4k | $31.9k | 0.36 |
Biggest buyers
| AWM Investment Company, Inc. | Added | +342.9k |
| MILLENNIUM MANAGEMENT LLC | Added | +161.9k |
| ClariVest Asset Management LLC | New | +129.8k |
| CITADEL ADVISORS LLC | Added | +120.5k |
| DIMENSIONAL FUND ADVISORS LP | Added | +115.0k |
| AQR CAPITAL MANAGEMENT LLC | New | +113.6k |
| Mitsubishi UFJ Asset Management Co., Ltd. | New | +102.1k |
| VANGUARD GROUP INC | Added | +91.6k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +86.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | +70.5k |
Biggest sellers
| EVENTIDE ASSET MANAGEMENT, LLC | Sold out | -1.4m |
| Granahan Investment Management, LLC | Reduced | -814.7k |
| Iron Triangle Partners LP | Reduced | -311.9k |
| ARK Investment Management LLC | Reduced | -111.3k |
| PLATINUM INVESTMENT MANAGEMENT LTD | Reduced | -98.2k |
| MORGAN STANLEY | Reduced | -75.4k |
| NEW YORK STATE COMMON RETIREMENT FUND | Reduced | -68.2k |
| Sumitomo Mitsui Trust Group, Inc. | Reduced | -66.5k |
| Amova Asset Management Americas, Inc. | Reduced | -66.5k |
| BlackRock Inc. | Reduced | -39.9k |
Biggest calls
| PEAK6 Investments LLC | Reduced | $72.1k14.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $8.0k1.7k shares |
| GROUP ONE TRADING LLC | Reduced | $5.2k1.0k shares |
| CITADEL ADVISORS LLC | Reduced | $4.1k800 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| PEAK6 Investments LLC | Reduced | $18.0k3.5k shares |
| CITADEL ADVISORS LLC | Reduced | $7.2k1.4k shares |
| GROUP ONE TRADING LLC | New | $6.7k1.3k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| SIMPLEX TRADING, LLC | Reduced | $0100 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 Q2 2024
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 |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 4 | $4.4m | — |
| Q4 2022 | 1 | $24.9k | 1 | $673.2k | — |
| Q1 2023 | 0 | — | 5 | $885.2k | — |
| Q2 2023 | 0 | — | 2 | $752.2k | $752.2k |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 2 | $305.1k | — |
| Q1 2024 | 0 | — | 4 | $236.5k | — |
| Q2 2024 | 1 | $293.4k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-05-13 | Knopp Kevin J. President and CEO, director | Bought | $64.2k10.0k shares |
| 2024-05-10 | Knopp Kevin J. President and CEO, director | Bought | $57.7k10.0k shares |
| 2024-05-09 | Knopp Kevin J. President and CEO, director | Bought | $58.3k10.0k shares |
| 2024-05-08 | Knopp Kevin J. President and CEO, director | Bought | $57.2k10.0k shares |
| 2024-05-07 | Knopp Kevin J. President and CEO, director | Bought | $56.0k10.0k 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, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| ARK Investment Management LLC 0.18% of their portfolio | 3.9m $20.3m | Reduced -111.3k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 1.9m $9.7m | Reduced -5.5k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.8m $9.5m | Added +91.6k |
| BlackRock Inc. 0.00% of their portfolio | 1.7m $8.7m | Reduced -39.9k |
| AWM Investment Company, Inc. 0.70% of their portfolio | 1.0m $5.2m | Added +342.9k |
| FRED ALGER MANAGEMENT, LLC 0.03% of their portfolio | 1.0m $5.2m | Reduced -10.2k |
| Granahan Investment Management, LLC 0.19% of their portfolio | 919.6k $4.7m | Reduced -814.7k |
| Iron Triangle Partners LP 0.39% of their portfolio | 728.9k $3.8m | Reduced -311.9k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 618.3k $3.2m | Added +161.9k |
| Tao Capital Management LP 2.40% of their portfolio | 569.0k $2.9m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 561.2k $2.9m | Added +33.9k |
| Sumitomo Mitsui Trust Group, Inc. 0.00% of their portfolio | 495.8k $2.6m | Reduced -66.5k |
| Amova Asset Management Americas, Inc. 0.03% of their portfolio | 495.8k $2.5m | Reduced -66.5k |
| STATE STREET CORP 0.00% of their portfolio | 473.3k $2.4m | Added +37.3k |
| PLATINUM INVESTMENT MANAGEMENT LTD 0.06% of their portfolio | 274.1k $1.4m | Reduced -98.2k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 245.2k $1.3m | Added +115.0k |
| Sands Capital Alternatives, LLC 0.41% of their portfolio | 237.3k $1.2m | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 195.5k $1.0m | Added +86.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 192.5k $991.2k | Reduced -1.4k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 182.5k $939.9k | Reduced -529 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 169.3k $871.8k | Added +120.5k |
| ClariVest Asset Management LLC 0.07% of their portfolio | 129.8k $668.4k | New |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 113.6k $585.0k | New |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 107.0k $550.8k | Added +5.3k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio | 102.1k $525.8k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 86.5k $445.3k | Added +50.3k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 75.5k $388.8k | Added +10.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 70.5k $363.3k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 69.5k $358.2k | Added +4.2k |
| Bruce & Co., Inc. 0.12% of their portfolio | 68.3k $351.7k | Unchanged |
| Cubist Systematic Strategies, LLC 0.01% of their portfolio | 60.4k $311.2k | New |
| Eisler Capital (US) LLC 0.05% of their portfolio | 56.4k $290.3k | New |
| LPL Financial LLC 0.00% of their portfolio | 53.6k $276.0k | Added +2.4k |
| NEEDHAM INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 50.0k $257.5k | New |
| Squarepoint Ops LLC 0.00% of their portfolio | 48.6k $250.1k | New |
| MARSHALL WACE, LLP 0.00% of their portfolio | 44.4k $228.6k | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 39.5k $203.4k | Added +13.5k |
| MORGAN STANLEY 0.00% of their portfolio | 38.7k $199.1k | Reduced -75.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 37.7k $194.1k | Reduced -374 |
| Arete Wealth Advisors, LLC 0.01% of their portfolio | 34.6k $175.0k | Added +5.1k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 33.7k $173.6k | Added +5.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 31.2k $160.5k | Added +15.1k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 28.4k $146.4k | Reduced -1.6k |
| 49 WEALTH MANAGEMENT, LLC 0.03% of their portfolio | 26.8k $127.6k | Added +985 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 24.9k $128.2k | Added +10.2k |
| PRIMECAP MANAGEMENT CO/CA/ 0.00% of their portfolio | 24.8k $127.9k | Reduced -2.0k |
| Rafferty Asset Management, LLC 0.00% of their portfolio | 24.1k $124.1k | New |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 23.5k $121.0k | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 21.3k $109.5k | Added +2.8k |
| Petrus Trust Company, LTA 0.01% of their portfolio | 18.8k $97.0k | Added +8.6k |
| Verition Fund Management LLC 0.00% of their portfolio | 16.3k $83.8k | New |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 15.7k $81.0k | New |
| Cresset Asset Management, LLC 0.00% of their portfolio | 14.2k $73.3k | Added +1.8k |
| PDT Partners, LLC 0.01% of their portfolio | 13.9k $71.7k | New |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio | 13.5k $69.5k | New |
| SHERBROOKE PARK ADVISERS LLC 0.01% of their portfolio | 13.4k $69.2k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 13.4k $69.2k | Added +1.4k |
| Corebridge Financial, Inc. 0.00% of their portfolio | 12.8k $65.8k | First filing |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 11.8k $60.8k | Added +2.4k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 11.4k $58.7k | First filing |
| US BANCORP \DE\ 0.00% of their portfolio | 10.7k $55.3k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 10.0k $51.4k | Reduced -10.5k |
| GAMMA Investing LLC 0.01% of their portfolio | 9.3k $47.7k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 8.5k $43.7k | Reduced -68.2k |
| BARCLAYS PLC 0.00% of their portfolio | 8.4k $43.1k | Reduced -7.2k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 7.9k $40.6k | Reduced -2.0k |
| CITIGROUP INC 0.00% of their portfolio | 5.3k $27.4k | Added +1.1k |
| Allworth Financial LP 0.00% of their portfolio | 5.3k $28.4k | Unchanged |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 4.2k $21.0k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.8k $19.6k | Added +462 |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 3.7k $19.0k | New |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 3.7k $19.1k | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 3.1k $16.2k | Reduced -495 |
| PEAK6 Investments LLC 0.00% of their portfolio | 2.9k $14.9k | Reduced -13.6k |
| SIGNATUREFD, LLC 0.00% of their portfolio | 2.5k $12.9k | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 2.2k $11.0k | Added +1.7k |
| HM PAYSON & CO 0.00% of their portfolio | 2.0k $10.3k | New |
| Legal & General Group Plc 0.00% of their portfolio | 1.8k $9.4k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 1.7k $8.9k | Reduced -508 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.4k $7.4k | Unchanged |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 987 $5.1k | New |
| Itau Unibanco Holding S.A. 0.00% of their portfolio | 913 $4.7k | New |
| FMR LLC 0.00% of their portfolio | 875 $4.5k | Reduced -571 |
| AMALGAMATED BANK 0.00% of their portfolio | 766 $4.0k | Unchanged |
| Point72 (DIFC) Ltd 0.00% of their portfolio | 223 $1.1k | New |
| GPS Wealth Strategies Group, LLC 0.00% of their portfolio | 200 $1.0k | Reduced -75 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 135 $695 | New |
| CWM, LLC 0.00% of their portfolio | 34 $0 | New |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 32 $165 | Reduced -2.4k |
| ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio | 20 $103 | New |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |