Sienko David C

Officer · HL

As of 2026-09-16, Sienko David C has 16 Form 4 transactions on record across 1 company — 9 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $16.8MIndirect: $312K$17.1Mas of 2026-09-16
  • Direct $16.8M
  • Indirect $312K
HLdirect934,511 sh$16.8M
HLindirect17,354 sh$312K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

HL · 16 trades
2026-06-22: Withheld for tax, 23,973 sh ($383K)2026-06-22: Award / grant, 22,724 sh ($363K)2026-06-22: Other acquisition, 17,354 sh ($0)2026-06-22: Award / grant, 22,724 sh ($0)2026-03-02: Withheld for tax, 7,294 sh ($180K)2026-03-02: Option exercise, 23,881 sh ($0)2026-03-02: Option exercise, 23,881 sh ($0)2025-12-18: Other acquisition, 16,287 sh ($0)2025-12-17: Sale, 207,553 sh ($4.0M)2025-06-23: Award / grant, 60,137 sh ($350K)2025-06-23: Withheld for tax, 13,768 sh ($80K)2025-06-23: Award / grant, 60,137 sh ($0)2025-06-23: Other acquisition, 15,258 sh ($0)2025-02-26: Sale, 21,826 sh ($113K)2025-02-24: Other acquisition, 15,258 sh ($0)2025-02-24: Award / grant, 45,501 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-12-17HLSale207,553 @ $19.42$4.0M−18.6% of holding906,370Form 4
2025-02-26HLSale21,826 @ $5.18$113K−2.3% of holding914,571Form 4
14 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-22HLWithheld for tax23,973934,511Form 4
2026-06-22HLAward / grant22,724934,511Form 4
2026-06-22HLOther acquisition17,35417,354Form 4
2026-06-22HLAward / grant22,724934,511Form 4
2026-03-02HLWithheld for tax7,294769,974Form 4
2026-03-02HLOption exercise23,881777,268Form 4
2026-03-02HLOption exercise23,881115,634Form 4
2025-12-18HLOther acquisition16,28716,287Form 4
2025-06-23HLAward / grant60,1371,115,621Form 4
2025-06-23HLWithheld for tax13,7681,115,621Form 4
2025-06-23HLAward / grant60,1371,115,621Form 4
2025-06-23HLOther acquisition15,25815,258Form 4
2025-02-24HLOther acquisition15,25815,285Form 4
2025-02-24HLAward / grant45,501936,397Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.