Ladensohn David A

Ten-percent owner · SYM

As of 2026-09-16, Ladensohn David A has 48 Form 4 transactions on record across 1 company — 30 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: $0Indirect: $16.1M$16.1Mas of 2026-09-16
  • Direct $0
  • Indirect $16.1M
SYMindirect373,896 sh$16.1M

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

SYM · 48 trades
2026-09-10: Other acquisition, 200,000 sh ($0)2026-09-10: Gift, 373,896 sh ($0)2026-09-10: Gift, 231,896 sh ($0)2026-09-10: Other acquisition, 200,000 sh ($0)2026-09-10: Other acquisition, 200,000 sh2026-09-10: Gift, 373,896 sh2026-09-10: Gift, 231,896 sh2026-09-10: Other acquisition, 200,000 sh2026-09-10: Other acquisition, 200,000 sh2026-09-10: Gift, 231,896 sh2026-09-10: Other acquisition, 200,000 sh2026-09-10: Gift, 373,896 sh2026-09-10: Other acquisition, 200,000 sh2026-09-10: Gift, 373,896 sh2026-09-10: Gift, 231,896 sh2026-09-10: Other acquisition, 200,000 sh2026-09-10: Other acquisition, 200,000 sh2026-09-10: Gift, 373,896 sh2026-09-10: Gift, 231,896 sh2026-09-10: Other acquisition, 200,000 sh2026-05-15: Other acquisition, 12,469,262 sh ($0)2026-05-15: Other acquisition, 384,222 sh ($0)2026-05-15: Other acquisition, 12,853,484 sh2026-05-15: Other acquisition, 12,853,484 sh2025-10-16: Sale, 7,500 sh ($559K)2025-10-16: Sale, 3,000 sh ($223K)2025-10-16: Sale, 3,000 sh ($223K)2025-10-09: Sale, 10,000 sh ($668K)2025-10-09: Sale, 8,000 sh ($533K)2025-10-09: Sale, 5,000 sh ($334K)2025-08-13: Gift, 2,000 sh ($0)2025-08-11: Sale, 10,000 sh ($552K)2025-08-11: Sale, 5,000 sh ($263K)2025-06-12: Other acquisition, 71,500 sh ($0)2025-06-12: Other acquisition, 71,500 sh ($0)2025-06-12: Other acquisition, 71,500 sh2025-06-12: Other acquisition, 71,500 sh2025-06-12: Other acquisition, 71,500 sh2025-06-12: Other acquisition, 71,500 sh2025-05-19: Other acquisition, 35,714 sh ($0)2025-05-19: Other acquisition, 35,714 sh2025-05-19: Other acquisition, 35,714 sh2024-08-07: Other acquisition, 1,000,000 sh ($0)2024-08-07: Other acquisition, 7,762 sh ($0)2024-08-07: Other acquisition, 7,762 sh2024-08-07: Other acquisition, 1,000,000 sh2024-08-07: Other acquisition, 7,762 sh2024-08-07: Other acquisition, 1,000,000 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-10-16SYMSale7,500 @ $74.53$559K−75.0% of holding2,500Form 4
2025-10-16SYMSale3,000 @ $74.49$223K−60.0% of holding2,000Form 4
2025-10-16SYMSale3,000 @ $74.17$223K−60.0% of holding2,000Form 4
2025-10-09SYMSale10,000 @ $66.81$668K−50.0% of holding10,000Form 4
2025-10-09SYMSale8,000 @ $66.64$533K−61.5% of holding5,000Form 4
2025-10-09SYMSale5,000 @ $66.80$334K−50.0% of holding5,000Form 4
2025-08-11SYMSale10,000 @ $55.23$552K−33.3% of holding20,000Form 4
2025-08-11SYMSale5,000 @ $52.60$263K−33.3% of holding10,000Form 4
40 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-10SYMOther acquisition200,000175,378Form 4
2026-09-10SYMGift373,896373,896Form 4
2026-09-10SYMGift231,896231,896Form 4
2026-09-10SYMOther acquisition200,000320,835Form 4
2026-09-10SYMOther acquisition200,00010,790,532Form 4
2026-09-10SYMGift373,896373,896Form 4
2026-09-10SYMGift231,896231,896Form 4
2026-09-10SYMOther acquisition200,00014,178,979Form 4
2026-09-10SYMOther acquisition200,00010,790,532Form 4
2026-09-10SYMGift231,896231,896Form 4
2026-09-10SYMOther acquisition200,00014,178,979Form 4
2026-09-10SYMGift373,896373,896Form 4
2026-09-10SYMOther acquisition200,00010,790,532Form 4
2026-09-10SYMGift373,896373,896Form 4
2026-09-10SYMGift231,896231,896Form 4
2026-09-10SYMOther acquisition200,00014,178,979Form 4
2026-09-10SYMOther acquisition200,00010,790,532Form 4
2026-09-10SYMGift373,896373,896Form 4
2026-09-10SYMGift231,896231,896Form 4
2026-09-10SYMOther acquisition200,00014,178,979Form 4
2026-05-15SYMOther acquisition12,469,2620Form 4
2026-05-15SYMOther acquisition384,2220Form 4
2026-05-15SYMOther acquisition12,853,4840Form 4
2026-05-15SYMOther acquisition12,853,4840Form 4
2025-08-13SYMGift2,00013,000Form 4
2025-06-12SYMOther acquisition71,500375,378Form 4
2025-06-12SYMOther acquisition71,500384,222Form 4
2025-06-12SYMOther acquisition71,50012,853,484Form 4
2025-06-12SYMOther acquisition71,50010,990,532Form 4
2025-06-12SYMOther acquisition71,50012,853,484Form 4
2025-06-12SYMOther acquisition71,50010,990,532Form 4
2025-05-19SYMOther acquisition35,714455,722Form 4
2025-05-19SYMOther acquisition35,71412,932,746Form 4
2025-05-19SYMOther acquisition35,71412,932,746Form 4
2024-08-07SYMOther acquisition1,000,00010,615,154Form 4
2024-08-07SYMOther acquisition7,76212,469,262Form 4
2024-08-07SYMOther acquisition7,76212,924,984Form 4
2024-08-07SYMOther acquisition1,000,00011,062,032Form 4
2024-08-07SYMOther acquisition7,76212,924,984Form 4
2024-08-07SYMOther acquisition1,000,00011,062,032Form 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.