Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| 908 Devices Inc.MASS · Entity 5564 | Director | June 25, 2026 | June 25, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
908 Devices Inc.
Report date June 25, 2026 · Filed June 25, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 27,054 |
Reported balance
After 2026-06-25 transaction · row 1
1 source rowRow 1 · 2026-06-25 · Exercise / conversion · Acquired 6,486 · Balance 27,054 F1: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. |
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 6,485 |
Reported balance
After 2026-06-25 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-06-25 · Exercise / conversion · Disposed 6,486 · Balance 6,485 F1: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. F2: The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. |
Filing footnotes · ownership attribution and instrument terms
F1: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.
F2: The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| June 25, 2026 Filed Jun 25, 2026 20:15 UTC | 908 Devices Inc. MASS · Entity 5564 | Exercise / conversionRestricted Stock Units · Derivative | 6,486 | $0.00 | $0.00 |
DisclosureSEC source: 0002027457-26-000005 · form4-06252026_040601.xml · derivative · entry 2 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,485 Underlying: Common Stock · 6,486 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. F2 · derivative.exercise_date: The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. F2 · derivative.expiration_date: The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. Read SEC document |
| June 25, 2026 Filed Jun 25, 2026 20:15 UTC | 908 Devices Inc. MASS · Entity 5564 | Exercise / conversionCommon Stock | 6,486 | Not disclosed | Not disclosed |
DisclosureSEC source: 0002027457-26-000005 · form4-06252026_040601.xml · nonDerivative · entry 1 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,054 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. Read SEC document |
| June 11, 2026 Filed Jun 12, 2026 20:51 UTC | 908 Devices Inc. MASS · Entity 5564 | GrantStock Option (option to buy) · Derivative | 6,209 | $0.00 Strike: $8.22 | $0.00 |
DisclosureSEC source: 0002027457-26-000003 · form4-06122026_080631.xml · derivative · entry 4 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,209 Underlying: Common Stock · 6,209 shares Expires 2036-06-10 F4 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following June 11, 2026, subject to the reporting person's continued service through the applicable vesting date. Read SEC document |
| June 11, 2026 Filed Jun 12, 2026 20:51 UTC | 908 Devices Inc. MASS · Entity 5564 | GrantRestricted Stock Units · Derivative | 13,656 | $0.00 | $0.00 |
DisclosureSEC source: 0002027457-26-000003 · form4-06122026_080631.xml · derivative · entry 3 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,656 Underlying: Common Stock · 13,656 shares Expires not disclosed F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. F3 · derivative.exercise_date: The RSUs become fully vested on June 11, 2027 or the day prior to the 2027 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. F3 · derivative.expiration_date: The RSUs become fully vested on June 11, 2027 or the day prior to the 2027 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. Read SEC document |
| June 10, 2026 Filed Jun 12, 2026 20:51 UTC | 908 Devices Inc. MASS · Entity 5564 | Exercise / conversionRestricted Stock Units · Derivative | 14,083 | $0.00 | $0.00 |
DisclosureSEC source: 0002027457-26-000003 · form4-06122026_080631.xml · derivative · entry 2 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 14,083 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. F2 · derivative.exercise_date: The RSUs became fully vested on June 10, 2026, the day prior to the 2026 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date. F2 · derivative.expiration_date: The RSUs became fully vested on June 10, 2026, the day prior to the 2026 Annual Meeting of the Stockholders of 908 Devices Inc. The RSUs have no expiration date. Read SEC document |
| June 10, 2026 Filed Jun 12, 2026 20:51 UTC | 908 Devices Inc. MASS · Entity 5564 | Exercise / conversionCommon Stock | 14,083 | Not disclosed | Not disclosed |
DisclosureSEC source: 0002027457-26-000003 · form4-06122026_080631.xml · nonDerivative · entry 1 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 20,568 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. Read SEC document |
| June 25, 2025 Filed Jun 27, 2025 20:01 UTC | 908 Devices Inc. MASS · Entity 5564 | Exercise / conversionRestricted Stock Units · Derivative | 6,485 | $0.00 | $0.00 |
DisclosureSEC source: 0001562180-25-005098 · primarydocument.xml · derivative · entry 2 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,971 Underlying: Common Stock · 6,485 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date. F2 · derivative.exercise_date: The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. F2 · derivative.expiration_date: The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. Read SEC document |
| June 25, 2025 Filed Jun 27, 2025 20:01 UTC | 908 Devices Inc. MASS · Entity 5564 | Exercise / conversionCommon Stock | 6,485 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001562180-25-005098 · primarydocument.xml · nonDerivative · entry 1 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,485 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date. Read SEC document |
| June 12, 2025 Filed Jun 13, 2025 20:22 UTC | 908 Devices Inc. MASS · Entity 5564 | GrantStock Option (option to buy) · Derivative | 6,516 | $0.00 Strike: $7.19 | $0.00 |
DisclosureSEC source: 0001562180-25-004813 · primarydocument.xml · derivative · entry 2 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,516 Underlying: Common Stock · 6,516 shares Expires 2035-06-11 F3 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 12 months following June 12, 2025, subject to the reporting person's continued service through the applicable vesting date. Read SEC document |
| June 12, 2025 Filed Jun 13, 2025 20:22 UTC | 908 Devices Inc. MASS · Entity 5564 | GrantRestricted Stock Units · Derivative | 14,083 | $0.00 | $0.00 |
DisclosureSEC source: 0001562180-25-004813 · primarydocument.xml · derivative · entry 1 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,083 Underlying: Common Stock · 14,083 shares Expires not disclosed F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. F2 · derivative.exercise_date: The RSUs become fully vested on June 12, 2026 or the day prior to the 2026 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. F2 · derivative.expiration_date: The RSUs become fully vested on June 12, 2026 or the day prior to the 2026 Annual Meeting of the Stockholders of 908 Devices Inc., whichever occurs first, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. Read SEC document |
| June 25, 2024 Filed Jun 26, 2024 20:05 UTC | 908 Devices Inc. MASS · Entity 5564 | GrantStock Option (option to buy) · Derivative | 26,810 | $0.00 Strike: $5.14 | $0.00 |
DisclosureSEC source: 0001562180-24-005312 · primarydocument.xml · derivative · entry 2 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,810 Underlying: Common Stock, par value $0.001 · 26,810 shares Expires 2034-06-25 F3 · derivative.exercise_date: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 36 months following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date. Read SEC document |
| June 25, 2024 Filed Jun 26, 2024 20:05 UTC | 908 Devices Inc. MASS · Entity 5564 | GrantRestricted Stock Unit · Derivative | 19,456 | $0.00 | $0.00 |
DisclosureSEC source: 0001562180-24-005312 · primarydocument.xml · derivative · entry 1 Leonhart Michele M. · CIK 0002027457 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,456 Underlying: Common Stock, par value $0.001 · 19,456 shares Expires not disclosed F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested. F2 · derivative.exercise_date: The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. F2 · derivative.expiration_date: The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.