MOTT DAVID M — SEC Form 4 filings
SEC reporting owner CIK 1219871. 21 Form 4 filings on record with FilingPulse; latest filed 2026-06-23.
Transaction summary — filings shown
Covers all 21 filings on record, filed 2024-06-12 to 2026-06-23. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 9 legs across 9 filings — 1,920,607 shares, $8,724,116 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 40.
- Largest priced transaction: purchase of 333,333 shares @ $5.84 ($1,946,331) in ARDELYX, INC., filed 2026-02-23.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| ARDELYX, INC. (ARDX) | Director | 13 | 9 legs · 1,920,607 sh · $8,724,116 | — | 10 |
| Mersana Therapeutics, Inc. (MRSN) | Director | 3 | — | — | 17 |
| NOVAVAX INC (NVAX) | Director | 4 | — | — | 12 |
| Adaptimmune Therapeutics PLC (ADAP) | Director | 1 | — | — | 1 |
Form 4 filings — MOTT DAVID M
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-23 | 4 | NOVAVAX INC (NVAX) | Option exercise (M): 18,880 · Grant/award (A): 21,270 (derivative) @ $0 · Grant/award (A): 14,180 (derivative) @ $0 · Option exercise (M): 18,880 (derivative) @ $0 | EDGAR |
| 2026-06-18 | 4 | ARDELYX, INC. (ARDX) | Grant/award (A): 20,282 @ $0 · Grant/award (A): 26,455 @ $0 · Grant/award (A): 39,715 (derivative) @ $0 | EDGAR |
| 2026-02-23 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 333,333 @ $5.84 | EDGAR |
| 2026-01-06 | 4 | Mersana Therapeutics, Inc. (MRSN) | Code (U): 23,546 · Code (U): 383 · Disposition to issuer (D): 2,460 (derivative) · Disposition to issuer (D): 264 (derivative) · Disposition to issuer (D): 400 (derivative) · Disposition to issuer (D): 1,011 (derivative) · +9 more | EDGAR |
| 2025-06-24 | 4 | NOVAVAX INC (NVAX) | Grant/award (A): 28,326 (derivative) @ $6.42 · Grant/award (A): 18,884 (derivative) @ $0 | EDGAR |
| 2025-06-23 | 4 | ARDELYX, INC. (ARDX) | Grant/award (A): 31,163 @ $0 · Grant/award (A): 41,551 @ $0 · Grant/award (A): 54,059 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 200,000 @ $3.63 | EDGAR |
| 2025-06-13 | 4 | NOVAVAX INC (NVAX) | Option exercise (M): 10,420 @ $0 · Option exercise (M): 10,420 (derivative) @ $0 | EDGAR |
| 2025-06-13 | 4 | Mersana Therapeutics, Inc. (MRSN) | Grant/award (A): 61,500 (derivative) @ $0 | EDGAR |
| 2025-06-11 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 200,000 @ $3.69 | EDGAR |
| 2025-05-19 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 100,000 @ $3.29 | EDGAR |
| 2025-05-05 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 381,377 @ $4.22 | EDGAR |
| 2025-02-26 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 77,729 @ $5.00 | EDGAR |
| 2025-01-22 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 199,000 @ $4.99 | EDGAR |
| 2024-12-27 | 4 | ARDELYX, INC. (ARDX) | Option exercise (M): 100,000 @ $0.55 · Option exercise (M): 100,000 (derivative) @ $0 | EDGAR |
| 2024-12-23 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 213,300 @ $4.67 | EDGAR |
| 2024-11-14 | 4 | ARDELYX, INC. (ARDX) | Purchase (P): 215,868 @ $4.62 | EDGAR |
| 2024-07-01 | 4 | Adaptimmune Therapeutics PLC (ADAP) | Grant/award (A): 1,583,214 (derivative) @ $0 | EDGAR |
| 2024-06-17 | 4 | ARDELYX, INC. (ARDX) | Grant/award (A): 17,322 @ $0 · Grant/award (A): 40,243 (derivative) @ $0 | EDGAR |
| 2024-06-14 | 4 | NOVAVAX INC (NVAX) | Option exercise (M): 6,670 @ $0 · Option exercise (M): 6,670 (derivative) @ $0 · Grant/award (A): 15,630 (derivative) @ $15.86 · Grant/award (A): 10,420 (derivative) @ $0 | EDGAR |
| 2024-06-12 | 4 | Mersana Therapeutics, Inc. (MRSN) | Grant/award (A): 55,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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