Last 12 months
Inside the activity.
3 purchase rows · 0 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 0 |
| Mar 2026 | 0 | 0 |
| Apr 2026 | 3 | 0 |
| May 2026 | 0 | 0 |
| Jun 2026 | 0 | 0 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 0 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/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 | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| June 17, 2026 Filed Jun 22, 2026 20:00 UTC |
Fletcher Aaron G.L.Director · 10% owner
BIOS Capital Management, LPDirector · 10% owner
BIOS Advisors GP, LLCDirector · 10% owner
Bios Equity Partners, LPDirector · 10% owner
BIOS Fund I, LPDirector · 10% owner
BIOS Fund II QP, LPDirector · 10% owner
BIOS Memory SPV I, LPDirector · 10% owner
Bios Equity Partners II, LPDirector · 10% owner
BIOS Fund II, LPDirector · 10% owner
BIOS Fund I QP, LPDirector · 10% owner
|
GrantCommon Stock | 25,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001789490-26-000002 · primary_doc.xml · nonDerivative · entry 1 Fletcher Aaron G.L. · CIK 0001789490 · Director · 10% owner BIOS Capital Management, LP · CIK 0001813845 · Director · 10% owner BIOS Advisors GP, LLC · CIK 0001813844 · Director · 10% owner Bios Equity Partners, LP · CIK 0001813314 · Director · 10% owner BIOS Fund I, LP · CIK 0001697316 · Director · 10% owner BIOS Fund II QP, LP · CIK 0001716869 · Director · 10% owner BIOS Memory SPV I, LP · CIK 0001643749 · Director · 10% owner Bios Equity Partners II, LP · CIK 0001813313 · Director · 10% owner BIOS Fund II, LP · CIK 0001714576 · Director · 10% owner BIOS Fund I QP, LP · CIK 0001700297 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 81,229 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 17, 2027 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. F2 · ownership.direct: Pursuant to an agreement with BP Directors, LP ("Bios Directors"), Dr. Fletcher has agreed that he will hold certain equity-based awards granted to him in connection with his services as a director of the Issuer merely as a nominee for Bios Directors. Bios Directors may be deemed the direct or indirect beneficial owner of the reported securities, and Bios Equity Partners, LP ("Bios Equity I"), Cavu Management, LP ("Cavu Management"), Bios Capital Management, LP ("Bios Management"), Cavu Advisors LLC ("Cavu Advisors"), Bios Advisors GP, LLC ("Bios Advisors"), Leslie W. Kreis, Jr. ("Mr. Kreis") and Dr. Fletcher may each be deemed the indirect beneficial owner of the reported securities through his or its respective indirect interest in Bios Directors. Read SEC document |
| June 17, 2026 Filed Jun 22, 2026 21:18 UTC |
Khattar Jack A.Director
|
GrantCommon Stock | 25,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-076477 · tm2618497-4_4seq1.xml · nonDerivative · entry 1 Khattar Jack A. · CIK 0001539937 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 73,500 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 17, 2027 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. Read SEC document |
| June 17, 2026 Filed Jun 22, 2026 21:16 UTC |
Monia Brett PDirector
|
GrantCommon Stock | 25,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-076475 · tm2618497-3_4seq1.xml · nonDerivative · entry 1 Monia Brett P · CIK 0001537529 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 73,500 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 17, 2027 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. Read SEC document |
| June 17, 2026 Filed Jun 22, 2026 21:14 UTC |
Wallace PeggyDirector
|
GrantCommon Stock | 25,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-076472 · tm2618497-2_4seq1.xml · nonDerivative · entry 1 Wallace Peggy · CIK 0001876466 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 111,461 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 17, 2027 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. Read SEC document |
| June 17, 2026 Filed Jun 22, 2026 21:12 UTC |
RICHSTONE ELLEN BDirector
|
GrantCommon Stock | 25,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-076470 · tm2618497-1_4seq1.xml · nonDerivative · entry 1 RICHSTONE ELLEN B · CIK 0001281526 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 83,500 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 17, 2027 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. Read SEC document |
| May 01, 2026 Filed May 4, 2026 20:01 UTC |
Doyle John BrendanChief Financial Officer
|
Tax withholdingCommon Stock | 8,567 | $1.28 | $10,965.76 |
DisclosureSEC source: 0001104659-26-054858 · tm2613475-1_4seq1.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 618,942 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| April 16, 2026 Filed Apr 20, 2026 20:18 UTC |
Doyle John BrendanChief Financial Officer
|
PurchaseCommon Stock | 10,000 | $1.13 | $11,300.00 |
DisclosureSEC source: 0001104659-26-045511 · tm2612247-3_4seq1.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 627,509 Read SEC document |
| April 16, 2026 Filed Apr 20, 2026 20:16 UTC |
Ricciardi LisaDirector · CEO & President
|
PurchaseCommon Stock | 9,175 | $1.10 | $10,092.50 |
DisclosureSEC source: 0001104659-26-045502 · tm2612247-2_4seq1.xml · nonDerivative · entry 1 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,715,851 Read SEC document |
| April 16, 2026 Filed Apr 20, 2026 20:15 UTC |
Caggiano AnthonyChief Medical Officer
|
PurchaseCommon Stock | 10,000 | $1.11 | $11,100.00 |
DisclosureSEC source: 0001104659-26-045499 · tm2612247-1_4seq1.xml · nonDerivative · entry 1 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 874,906 Read SEC document |
| February 15, 2026 Filed Feb 18, 2026 21:17 UTC |
Ricciardi LisaDirector · CEO & President
|
Tax withholdingCommon Stock | 5,850 | $1.12 | $6,552.00 |
DisclosureSEC source: 0001104659-26-017070 · tm266602-3_4seq1.xml · nonDerivative · entry 1 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,706,676 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| February 15, 2026 Filed Feb 18, 2026 21:16 UTC |
Doyle John BrendanChief Financial Officer
|
Tax withholdingCommon Stock | 1,560 | $1.12 | $1,747.20 |
DisclosureSEC source: 0001104659-26-017068 · tm266602-2_4seq1.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 617,509 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| February 15, 2026 Filed Feb 18, 2026 21:15 UTC |
Caggiano AnthonyChief Medical Officer
|
Tax withholdingCommon Stock | 4,680 | $1.12 | $5,241.60 |
DisclosureSEC source: 0001104659-26-017063 · tm266602-1_4seq1.xml · nonDerivative · entry 1 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 864,906 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| February 04, 2026 Filed Feb 5, 2026 22:27 UTC |
Doyle John BrendanChief Financial Officer
|
Tax withholdingCommon Stock | 26,921 | $1.03 | $27,728.63 |
DisclosureSEC source: 0001104659-26-011074 · tm265419-2_4seq1.xml · nonDerivative · entry 2 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 619,069 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs. Read SEC document |
| February 04, 2026 Filed Feb 5, 2026 22:28 UTC |
Ricciardi LisaDirector · CEO & President
|
Tax withholdingCommon Stock | 51,704 | $1.03 | $53,255.12 |
DisclosureSEC source: 0001104659-26-011075 · tm265419-3_4seq1.xml · nonDerivative · entry 3 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,712,526 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs. Read SEC document |
| February 04, 2026 Filed Feb 5, 2026 22:26 UTC |
Caggiano AnthonyChief Medical Officer
|
Tax withholdingCommon Stock | 26,919 | $1.03 | $27,726.57 |
DisclosureSEC source: 0001104659-26-011073 · tm265419-1_4seq1.xml · nonDerivative · entry 3 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 869,586 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 22:27 UTC |
Doyle John BrendanChief Financial Officer
|
GrantCommon Stock | 200,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-011074 · tm265419-2_4seq1.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 645,990 F1 · kind: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 22:28 UTC |
Ricciardi LisaDirector · CEO & President
|
Tax withholdingCommon Stock | 26,036 | $1.12 | $29,160.32 |
DisclosureSEC source: 0001104659-26-011075 · tm265419-3_4seq1.xml · nonDerivative · entry 2 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,764,230 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 22:28 UTC |
Ricciardi LisaDirector · CEO & President
|
GrantCommon Stock | 800,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-011075 · tm265419-3_4seq1.xml · nonDerivative · entry 1 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,790,266 F1 · kind: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 22:26 UTC |
Caggiano AnthonyChief Medical Officer
|
Tax withholdingCommon Stock | 11,488 | $1.12 | $12,866.56 |
DisclosureSEC source: 0001104659-26-011073 · tm265419-1_4seq1.xml · nonDerivative · entry 2 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 896,505 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs. Read SEC document |
| February 03, 2026 Filed Feb 5, 2026 22:26 UTC |
Caggiano AnthonyChief Medical Officer
|
GrantCommon Stock | 400,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-26-011073 · tm265419-1_4seq1.xml · nonDerivative · entry 1 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 907,993 F1 · kind: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. Read SEC document |
| December 18, 2025 Filed Dec 22, 2025 21:10 UTC |
Caggiano AnthonyChief Medical Officer
|
Tax withholdingCommon Stock | 20,280 | $1.50 | $30,420.00 |
DisclosureSEC source: 0001104659-25-123722 · tm2534021-2_4seq1.xml · nonDerivative · entry 2 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 507,993 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of PSUs. Read SEC document |
| December 18, 2025 Filed Dec 22, 2025 21:10 UTC |
Caggiano AnthonyChief Medical Officer
|
GrantCommon Stock | 65,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-123722 · tm2534021-2_4seq1.xml · nonDerivative · entry 1 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 528,273 F1 · kind: Shares earned upon the vesting of performance stock units ("PSUs") granted to the Reporting Person on February 14, 2024. Each PSU represents a contingent right to receive one share of the Issuer's Common Stock upon the achievement of certain performance goals. The remaining 50% of the total number of shares subject to the PSUs vested on December 18, 2025. Read SEC document |
| December 18, 2025 Filed Dec 22, 2025 21:13 UTC |
Ricciardi LisaDirector · CEO & President
|
Tax withholdingCommon Stock | 23,400 | $1.50 | $35,100.00 |
DisclosureSEC source: 0001104659-25-123727 · tm2534021-3_4seq1.xml · nonDerivative · entry 2 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 990,266 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of PSUs. Read SEC document |
| December 18, 2025 Filed Dec 22, 2025 21:13 UTC |
Ricciardi LisaDirector · CEO & President
|
GrantCommon Stock | 75,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-123727 · tm2534021-3_4seq1.xml · nonDerivative · entry 1 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,013,666 F1 · kind: Shares earned upon the vesting of performance stock units ("PSUs") granted to the Reporting Person on February 14, 2024. Each PSU represents a contingent right to receive one share of the Issuer's Common Stock upon the achievement of certain performance goals. The remaining 50% of the total number of shares subject to the PSUs vested on December 18, 2025. Read SEC document |
| December 18, 2025 Filed Dec 22, 2025 21:10 UTC |
Doyle John BrendanChief Financial Officer
|
Tax withholdingCommon Stock | 9,360 | $1.50 | $14,040.00 |
DisclosureSEC source: 0001104659-25-123721 · tm2534021-1_4seq1.xml · nonDerivative · entry 2 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 445,990 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of PSUs. Read SEC document |
| December 18, 2025 Filed Dec 22, 2025 21:10 UTC |
Doyle John BrendanChief Financial Officer
|
GrantCommon Stock | 30,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-123721 · tm2534021-1_4seq1.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 455,350 F1 · kind: Shares earned upon the vesting of performance stock units ("PSUs") granted to the Reporting Person on February 14, 2024. Each PSU represents a contingent right to receive one share of the Issuer's Common Stock upon the achievement of certain performance goals. The remaining 50% of the total number of shares subject to the PSUs vested on December 18, 2025. Read SEC document |
| September 19, 2025 Filed Sep 24, 2025 01:54 UTC |
Fletcher Aaron G.L.Director · 10% owner
|
Exercise / conversionStock Option (right to buy) · Derivative | 7,729 | $0.00 Strike: $0.84 | $0.00 |
DisclosureSEC source: 0001104659-25-092671 · tm2526822-1_4seq1.xml · derivative · entry 13 Fletcher Aaron G.L. · CIK 0001789490 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 7,729 shares Expires 2025-09-22 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. F8 · derivative.exercise_date: The option was written and fully vested before the reporting persons became Section 16 insiders of the Issuer and therefore was reported on the reporting persons' Form 3 filed on October 7, 2021. Read SEC document |
| September 19, 2025 Filed Sep 24, 2025 01:54 UTC |
Fletcher Aaron G.L.Director · 10% owner
|
Exercise / conversionCommon Stock | 7,729 | $0.84 | $6,492.36 |
DisclosureSEC source: 0001104659-25-092671 · tm2526822-1_4seq1.xml · nonDerivative · entry 1 Fletcher Aaron G.L. · CIK 0001789490 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 56,229 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 · shares: Of the 56,229 shares reported as held directly by Aaron G.L. Fletcher ("Dr. Fletcher"), 7,729 shares, are held for the benefit of Dr. Fletcher and 48,500 shares, 34,000 of which represent restricted stock units, are held for the benefit of BP Directors, LP ("Bios Directors" and such securities the "Bios Directors Securities") under an agreement with Bios Directors pursuant to which Dr. Fletcher agreed that he will hold the Bios Directors Securities merely as a nominee for Bios Directors. F1 · ownership.direct: Of the 56,229 shares reported as held directly by Aaron G.L. Fletcher ("Dr. Fletcher"), 7,729 shares, are held for the benefit of Dr. Fletcher and 48,500 shares, 34,000 of which represent restricted stock units, are held for the benefit of BP Directors, LP ("Bios Directors" and such securities the "Bios Directors Securities") under an agreement with Bios Directors pursuant to which Dr. Fletcher agreed that he will hold the Bios Directors Securities merely as a nominee for Bios Directors. F2 · ownership.direct: Bios Directors may be deemed the direct or indirect beneficial owner of the Bios Directors Securities, and Bios Equity Partners, LP ("Bios Equity I"), Cavu Management, LP ("Cavu Management"), Bios Capital Management, LP ("Bios Management"), Cavu Advisors LLC ("Cavu Advisors"), Bios Advisors GP, LLC ("Bios Advisors"), Leslie W. Kreis, Jr. ("Mr. Kreis") and Dr. Fletcher may each be deemed the indirect beneficial owner of the Bios Directors Securities through his or its respective indirect interest in Bios Directors. Read SEC document |
| July 29, 2025 Filed Jul 31, 2025 20:24 UTC |
Caggiano AnthonyChief Medical Officer
|
Tax withholdingCommon Stock | 20,281 | $0.67 | $13,592.33 |
DisclosureSEC source: 0001062993-25-013358 · form4.xml · nonDerivative · entry 2 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 463,273 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of PSUs. Read SEC document |
| July 29, 2025 Filed Jul 31, 2025 20:24 UTC |
Caggiano AnthonyChief Medical Officer
|
GrantCommon Stock | 65,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-013358 · form4.xml · nonDerivative · entry 1 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 483,554 F1 · kind: Shares earned upon the vesting of performance stock units ("PSUs") granted to the Reporting Person on February 14, 2024. Each PSU represents a contingent right to receive one share of the Issuer's Common Stock upon the achievement of certain performance goals. 50% of the total number of shares subject to the PSUs vested on July 29, 2025. Read SEC document |
| July 29, 2025 Filed Jul 31, 2025 20:23 UTC |
Doyle John BrendanChief Financial Officer
|
Tax withholdingCommon Stock | 9,360 | $0.67 | $6,273.07 |
DisclosureSEC source: 0001062993-25-013357 · form4.xml · nonDerivative · entry 2 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 425,350 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of PSUs. Read SEC document |
| July 29, 2025 Filed Jul 31, 2025 20:23 UTC |
Doyle John BrendanChief Financial Officer
|
GrantCommon Stock | 30,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-013357 · form4.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 434,710 F1 · kind: Shares earned upon the vesting of performance stock units ("PSUs") granted to the Reporting Person on February 14, 2024. Each PSU represents a contingent right to receive one share of the Issuer's Common Stock upon the achievement of certain performance goals. 50% of the total number of shares subject to the PSUs vested on July 29, 2025. Read SEC document |
| July 29, 2025 Filed Jul 31, 2025 20:23 UTC |
Ricciardi LisaDirector · CEO & President
|
Tax withholdingCommon Stock | 23,400 | $0.67 | $15,682.68 |
DisclosureSEC source: 0001062993-25-013356 · form4.xml · nonDerivative · entry 2 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 938,666 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of PSUs. Read SEC document |
| July 29, 2025 Filed Jul 31, 2025 20:23 UTC |
Ricciardi LisaDirector · CEO & President
|
GrantCommon Stock | 75,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-013356 · form4.xml · nonDerivative · entry 1 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 962,066 F1 · kind: Shares earned upon the vesting of performance stock units ("PSUs") granted to the Reporting Person on February 14, 2024. Each PSU represents a contingent right to receive one share of the Issuer's Common Stock upon the achievement of certain performance goals. 50% of the total number of shares subject to the PSUs vested on July 29, 2025. Read SEC document |
| June 18, 2025 Filed Jun 20, 2025 17:41 UTC |
Kreis Leslie W.Director · 10% owner
Cavu Advisors, LLCDirector · 10% owner
Cavu Management, LPDirector · 10% owner
BIOS Fund II NT, LPDirector · 10% owner
BIOS Memory SPV II, LPDirector · 10% owner
BIOS Equity Partners III, LPDirector · 10% owner
BIOS Fund III, LPDirector · 10% owner
BIOS Fund III QP, LPDirector · 10% owner
BIOS Fund III NT, LPDirector · 10% owner
BP Directors, LPDirector · 10% owner
|
GrantCommon Stock | 34,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-061242 · tm2518563-2_4seq1.xml · nonDerivative · entry 1 Kreis Leslie W. · CIK 0001813316 · Director · 10% owner Cavu Advisors, LLC · CIK 0001813310 · Director · 10% owner Cavu Management, LP · CIK 0001813270 · Director · 10% owner BIOS Fund II NT, LP · CIK 0001728851 · Director · 10% owner BIOS Memory SPV II, LP · CIK 0001666485 · Director · 10% owner BIOS Equity Partners III, LP · CIK 0001831976 · Director · 10% owner BIOS Fund III, LP · CIK 0001791917 · Director · 10% owner BIOS Fund III QP, LP · CIK 0001791916 · Director · 10% owner BIOS Fund III NT, LP · CIK 0001791910 · Director · 10% owner BP Directors, LP · CIK 0001813311 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 48,500 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 18, 2026 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to Aaron G.L. Fletcher's ("Dr. Fletcher") continuous service as a director as of the applicable vesting date. F2 · ownership.nature: Pursuant to an agreement with BP Directors, LP ("Bios Directors"), Dr. Fletcher has agreed that he will hold certain equity-based awards granted to him in connection with his services as a director of the Issuer merely as a nominee for Bios Directors. Bios Directors may be deemed the direct or indirect beneficial owner of the reported securities, and Bios Equity Partners, LP ("Bios Equity I"), Cavu Management, LP ("Cavu Management"), Bios Capital Management, LP ("Bios Management"), Cavu Advisors LLC ("Cavu Advisors"), Bios Advisors GP, LLC ("Bios Advisors"), Leslie W. Kreis, Jr. ("Mr. Kreis") and Dr. Fletcher may each be deemed the indirect beneficial owner of the reported securities through his or its respective indirect interest in Bios Directors. Read SEC document |
| June 18, 2025 Filed Jun 20, 2025 21:38 UTC |
Fletcher Aaron G.L.Director · 10% owner
BIOS Capital Management, LPDirector · 10% owner
BIOS Advisors GP, LLCDirector · 10% owner
Bios Equity Partners, LPDirector · 10% owner
BIOS Fund I, LPDirector · 10% owner
BIOS Fund I QP, LPDirector · 10% owner
BIOS Memory SPV I, LPDirector · 10% owner
Bios Equity Partners II, LPDirector · 10% owner
BIOS Fund II, LPDirector · 10% owner
BIOS Fund II QP, LPDirector · 10% owner
|
GrantCommon Stock | 34,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001104659-25-061241 · tm2518563-1_4seq1.xml · nonDerivative · entry 1 Fletcher Aaron G.L. · CIK 0001789490 · Director · 10% owner BIOS Capital Management, LP · CIK 0001813845 · Director · 10% owner BIOS Advisors GP, LLC · CIK 0001813844 · Director · 10% owner Bios Equity Partners, LP · CIK 0001813314 · Director · 10% owner BIOS Fund I, LP · CIK 0001697316 · Director · 10% owner BIOS Fund I QP, LP · CIK 0001700297 · Director · 10% owner BIOS Memory SPV I, LP · CIK 0001643749 · Director · 10% owner Bios Equity Partners II, LP · CIK 0001813313 · Director · 10% owner BIOS Fund II, LP · CIK 0001714576 · Director · 10% owner BIOS Fund II QP, LP · CIK 0001716869 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 48,500 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 18, 2026 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to Aaron G.L. Fletcher's ("Dr. Fletcher") continuous service as a director as of the applicable vesting date. F2 · ownership.direct: Pursuant to an agreement with BP Directors, LP ("Bios Directors"), Dr. Fletcher has agreed that he will hold certain equity-based awards granted to him in connection with his services as a director of the Issuer merely as a nominee for Bios Directors. Bios Directors may be deemed the direct or indirect beneficial owner of the reported securities, and Bios Equity Partners, LP ("Bios Equity I"), Cavu Management, LP ("Cavu Management"), Bios Capital Management, LP ("Bios Management"), Cavu Advisors LLC ("Cavu Advisors"), Bios Advisors GP, LLC ("Bios Advisors"), Leslie W. Kreis, Jr. ("Mr. Kreis") and Dr. Fletcher may each be deemed the indirect beneficial owner of the reported securities through his or its respective indirect interest in Bios Directors. Read SEC document |
| June 18, 2025 Filed Jun 23, 2025 23:22 UTC |
Khattar Jack A.Director
|
GrantCommon Stock | 34,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-012082 · form4.xml · nonDerivative · entry 1 Khattar Jack A. · CIK 0001539937 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 48,500 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 18, 2026 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. Read SEC document |
| June 18, 2025 Filed Jun 23, 2025 23:21 UTC |
Wallace PeggyDirector
|
GrantCommon Stock | 34,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-012081 · form4.xml · nonDerivative · entry 1 Wallace Peggy · CIK 0001876466 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 86,461 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 18, 2026 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. Read SEC document |
| June 18, 2025 Filed Jun 23, 2025 23:21 UTC |
RICHSTONE ELLEN BDirector
|
GrantCommon Stock | 34,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-012079 · form4.xml · nonDerivative · entry 1 RICHSTONE ELLEN B · CIK 0001281526 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 58,500 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 18, 2026 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. Read SEC document |
| June 18, 2025 Filed Jun 23, 2025 23:20 UTC |
Monia Brett PDirector
|
GrantCommon Stock | 34,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-012078 · form4.xml · nonDerivative · entry 1 Monia Brett P · CIK 0001537529 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 48,500 F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. The RSUs vest in full on the earlier of (i) June 18, 2026 or (ii) on the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continuous service as a director as of the applicable vesting date. Read SEC document |
| May 01, 2025 Filed May 2, 2025 21:53 UTC |
Doyle John BrendanChief Financial Officer
|
Tax withholdingCommon Stock | 9,692 | $0.45 | $4,334.26 |
DisclosureSEC source: 0001062993-25-008394 · form4.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 404,710 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| February 15, 2025 Filed Feb 18, 2025 21:28 UTC |
Caggiano AnthonyChief Medical Officer
|
Tax withholdingCommon Stock | 5,296 | $0.59 | $3,125.17 |
DisclosureSEC source: 0001062993-25-002704 · form4.xml · nonDerivative · entry 1 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 418,554 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| February 15, 2025 Filed Feb 18, 2025 21:29 UTC |
Ricciardi LisaDirector · CEO & President
|
Tax withholdingCommon Stock | 6,619 | $0.59 | $3,905.87 |
DisclosureSEC source: 0001062993-25-002705 · form4.xml · nonDerivative · entry 1 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 887,066 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| February 15, 2025 Filed Feb 18, 2025 21:28 UTC |
Doyle John BrendanChief Financial Officer
|
Tax withholdingCommon Stock | 1,723 | $0.59 | $1,016.74 |
DisclosureSEC source: 0001062993-25-002703 · form4.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 414,402 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| February 04, 2025 Filed Feb 4, 2025 21:13 UTC |
Caggiano AnthonyChief Medical Officer
|
GrantCommon Stock | 295,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-001622 · form4.xml · nonDerivative · entry 2 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 423,850 F2 · kind: Each share is represented by an RSU. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. Read SEC document |
| February 04, 2025 Filed Feb 4, 2025 21:11 UTC |
Ricciardi LisaDirector · CEO & President
|
GrantCommon Stock | 631,300 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-001617 · form4.xml · nonDerivative · entry 3 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 893,685 F3 · kind: Each share is represented by an RSU. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. Read SEC document |
| February 04, 2025 Filed Feb 4, 2025 21:12 UTC |
Doyle John BrendanChief Financial Officer
|
GrantCommon Stock | 295,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-001620 · form4.xml · nonDerivative · entry 1 Doyle John Brendan · CIK 0001840738 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 416,125 F1 · kind: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock upon settlement. Read SEC document |
| February 03, 2025 Filed Feb 4, 2025 21:13 UTC |
Caggiano AnthonyChief Medical Officer
|
Tax withholdingCommon Stock | 12,779 | $0.67 | $8,510.81 |
DisclosureSEC source: 0001062993-25-001622 · form4.xml · nonDerivative · entry 1 Caggiano Anthony · CIK 0001892981 · Chief Medical Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 128,850 F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). Read SEC document |
| February 03, 2025 Filed Feb 4, 2025 21:11 UTC |
Ricciardi LisaDirector · CEO & President
|
Tax withholdingCommon Stock | 28,960 | $0.67 | $19,287.36 |
DisclosureSEC source: 0001062993-25-001617 · form4.xml · nonDerivative · entry 2 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 262,385 F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). Read SEC document |
| January 31, 2025 Filed Feb 4, 2025 21:11 UTC |
Ricciardi LisaDirector · CEO & President
|
PurchaseCommon Stock | 38,851 | $0.77 | $30,000.74 |
DisclosureSEC source: 0001062993-25-001617 · form4.xml · nonDerivative · entry 1 Ricciardi Lisa · CIK 0001418200 · Director · CEO & President 10b5-1 filing: No plan indicated Ownership: Indirect · By Spouse Disclosed balance after: 38,851 F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.7602 to $0.7816, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. 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.