NOGLOWS WILLIAM P — SEC Form 4 filings

SEC reporting owner CIK 1201094. 21 Form 4 filings on record with FilingPulse; latest filed 2026-09-08.

Transaction summary — filings shown

Covers all 21 filings on record, filed 2024-01-10 to 2026-09-08. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.

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.

IssuerRole (as filed)FilingsPurchases (P)Sales (S)Other legs
LITTELFUSE INC /DE (LFUS)Director1727
ASPEN AEROGELS INC (ASPN)Director410

Form 4 filings — NOGLOWS WILLIAM P

FiledFormIssuerReported transactionsSource
2026-09-084LITTELFUSE INC /DE (LFUS)Grant/award (A): 6 @ $414.24 · Grant/award (A): 1 @ $414.24EDGAR
2026-06-264ASPEN AEROGELS INC (ASPN)Option exercise (M): 14,799 @ $4.75 · Option exercise (M): 14,799 (derivative) @ $0EDGAR
2026-06-084LITTELFUSE INC /DE (LFUS)Grant/award (A): 3 @ $480.24 · Grant/award (A): 3 @ $480.24EDGAR
2026-05-144ASPEN AEROGELS INC (ASPN)Grant/award (A): 10,370 @ $0 · Grant/award (A): 8,706 (derivative) @ $0EDGAR
2026-04-244LITTELFUSE INC /DE (LFUS)Grant/award (A): 482 @ $0EDGAR
2026-03-094LITTELFUSE INC /DE (LFUS)Grant/award (A): 7 @ $323.58 · Grant/award (A): 2 @ $323.58EDGAR
2026-02-064LITTELFUSE INC /DE (LFUS)Option exercise (M): 911 @ $199.24 · Option exercise (M): 911 (derivative) @ $0EDGAR
2025-12-084LITTELFUSE INC /DE (LFUS)Grant/award (A): 3 @ $258.99 · Grant/award (A): 8 @ $258.99EDGAR
2025-09-084LITTELFUSE INC /DE (LFUS)Grant/award (A): 8 @ $259.58 · Grant/award (A): 3 @ $259.58EDGAR
2025-06-094LITTELFUSE INC /DE (LFUS)Grant/award (A): 3 @ $214.18 · Grant/award (A): 9 @ $214.18EDGAR
2025-05-014ASPEN AEROGELS INC (ASPN)Grant/award (A): 10,370 @ $0 · Grant/award (A): 9,105 (derivative) @ $0EDGAR
2025-04-284LITTELFUSE INC /DE (LFUS)Grant/award (A): 1,019 @ $0EDGAR
2025-03-104LITTELFUSE INC /DE (LFUS)Other (J): 7 @ $218.33EDGAR
2025-02-064LITTELFUSE INC /DE (LFUS)Option exercise (M): 800 @ $192.59 · Option exercise (M): 800 (derivative) @ $0EDGAR
2024-12-094LITTELFUSE INC /DE (LFUS)Other (J): 8 @ $247.32EDGAR
2024-09-094LITTELFUSE INC /DE (LFUS)Other (J): 7 @ $256EDGAR
2024-06-104LITTELFUSE INC /DE (LFUS)Other (J): 5 @ $250.13EDGAR
2024-05-314ASPEN AEROGELS INC (ASPN)Grant/award (A): 1,898 @ $0 · Grant/award (A): 0 @ $0 · Grant/award (A): 0 @ $0 · Grant/award (A): 1,657 (derivative) @ $0EDGAR
2024-04-294LITTELFUSE INC /DE (LFUS)Grant/award (A): 522 @ $0 · Grant/award (A): 768 (derivative) @ $0EDGAR
2024-03-114LITTELFUSE INC /DE (LFUS)Other (J): 7 @ $244.90EDGAR
2024-01-104LITTELFUSE INC /DE (LFUS)Option exercise (M): 945 @ $154.15 · Option exercise (M): 945 (derivative) @ $0EDGAR

FilingPulse's Form 4 archive currently extends back to 2024-01-10 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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