Ralston Dianne B.

Officer · SLB

As of 2026-09-16, Ralston Dianne B. has 20 Form 4 transactions on record across 1 company — 10 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.

Pattern in the record: open-market sales filed in January in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $11.8MIndirect: $0$11.8Mas of 2026-09-16
  • Direct $11.8M
  • Indirect $0
SLBdirect226,039 sh$11.8M

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

SLB · 20 trades
2026-03-13: Withheld for tax, 1,261 sh ($56K)2026-03-13: Award / grant, 3,203 sh ($0)2026-01-26: Sale, 18,617 sh ($922K)2026-01-23: Withheld for tax, 17,667 sh ($888K)2026-01-23: Award / grant, 47,437 sh ($0)2026-01-21: Award / grant, 23,987 sh2026-01-21: Award / grant, 23,987 sh2026-01-18: Withheld for tax, 3,684 sh ($172K)2026-01-18: Option exercise, 14,427 sh ($0)2026-01-18: Option exercise, 14,427 sh ($0)2025-09-12: Sale, 39,727 sh ($1.4M)2025-03-07: Withheld for tax, 4,480 sh ($183K)2025-03-07: Award / grant, 11,384 sh ($0)2025-01-21: Sale, 43,161 sh ($1.9M)2025-01-17: Withheld for tax, 23,613 sh ($1.0M)2025-01-17: Withheld for tax, 8,784 sh ($378K)2025-01-17: Option exercise, 22,321 sh ($0)2025-01-17: Award / grant, 68,420 sh ($0)2025-01-17: Option exercise, 22,321 sh ($0)2025-01-15: Award / grant, 21,471 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-01-26SLBSale18,617 @ $49.50$922K−7.7% of holding224,097Form 4
2025-09-12SLBSale39,727 @ $36.08$1.4M−16.4% of holding202,201Form 4
2025-01-21SLBSale43,161 @ $43.96$1.9M−15.5% of holding235,024Form 4
17 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-13SLBWithheld for tax1,261226,039Form 4
2026-03-13SLBAward / grant3,203227,300Form 4
2026-01-23SLBWithheld for tax17,667242,714Form 4
2026-01-23SLBAward / grant47,437260,381Form 4
2026-01-21SLBAward / grant23,98723,987Form 4
2026-01-21SLBAward / grant23,98723,987Form 4
2026-01-18SLBWithheld for tax3,684212,944Form 4
2026-01-18SLBOption exercise14,427216,628Form 4
2026-01-18SLBOption exercise14,4270Form 4
2025-03-07SLBWithheld for tax4,480241,928Form 4
2025-03-07SLBAward / grant11,384246,408Form 4
2025-01-17SLBWithheld for tax23,613264,648Form 4
2025-01-17SLBWithheld for tax8,784278,185Form 4
2025-01-17SLBOption exercise22,3210Form 4
2025-01-17SLBAward / grant68,420288,261Form 4
2025-01-17SLBOption exercise22,321286,969Form 4
2025-01-15SLBAward / grant21,47121,471Form 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.