Ilkbahar Alper

Officer · SNDK

As of 2026-09-16, Ilkbahar Alper has 65 Form 4 transactions on record across 1 company — 55 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: $61.5MIndirect: $0$61.5Mas of 2026-09-16
  • Direct $61.5M
  • Indirect $0
SNDKdirect40,490 sh$61.5M

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

SNDK · 65 trades
2026-09-03: Withheld for tax, 3,244 sh ($5.0M)2026-09-03: Sale, 2,594 sh ($4.0M)2026-09-03: Sale, 200 sh ($313K)2026-09-03: Sale, 160 sh ($246K)2026-09-03: Sale, 120 sh ($187K)2026-09-03: Sale, 120 sh ($186K)2026-09-03: Sale, 120 sh ($184K)2026-09-03: Sale, 80 sh ($125K)2026-09-03: Sale, 80 sh ($124K)2026-09-03: Sale, 80 sh ($124K)2026-09-03: Sale, 80 sh ($123K)2026-09-03: Sale, 80 sh ($123K)2026-09-03: Sale, 80 sh ($123K)2026-09-03: Sale, 80 sh ($123K)2026-09-03: Sale, 80 sh ($123K)2026-09-03: Sale, 80 sh ($123K)2026-09-03: Sale, 80 sh ($122K)2026-09-03: Sale, 80 sh ($122K)2026-09-03: Sale, 80 sh ($122K)2026-09-03: Sale, 80 sh ($122K)2026-09-03: Sale, 80 sh ($122K)2026-09-03: Sale, 78 sh ($121K)2026-09-03: Sale, 80 sh ($121K)2026-09-03: Sale, 68 sh ($103K)2026-09-03: Sale, 52 sh ($79K)2026-09-03: Sale, 40 sh ($63K)2026-09-03: Sale, 40 sh ($63K)2026-09-03: Sale, 40 sh ($62K)2026-09-03: Sale, 40 sh ($62K)2026-09-03: Sale, 40 sh ($62K)2026-09-03: Sale, 40 sh ($62K)2026-09-03: Sale, 40 sh ($61K)2026-09-03: Sale, 40 sh ($61K)2026-09-03: Sale, 40 sh ($61K)2026-09-03: Sale, 40 sh ($61K)2026-08-25: Withheld for tax, 654 sh ($968K)2026-08-21: Withheld for tax, 320 sh ($511K)2026-08-20: Withheld for tax, 276 sh ($442K)2026-08-20: Withheld for tax, 163 sh ($261K)2026-08-20: Option exercise, 276 sh ($0)2026-08-20: Option exercise, 276 sh ($0)2026-06-02: Gift, 2,694 sh ($0)2026-06-01: Sale, 999 sh ($1.8M)2026-06-01: Sale, 600 sh ($1.1M)2026-06-01: Sale, 401 sh ($705K)2026-05-25: Withheld for tax, 653 sh ($966K)2026-05-21: Withheld for tax, 319 sh ($492K)2026-05-20: Withheld for tax, 162 sh ($226K)2026-04-20: Withheld for tax, 2,251 sh ($2.1M)2026-02-25: Withheld for tax, 566 sh ($358K)2026-02-21: Withheld for tax, 223 sh ($145K)2026-02-20: Withheld for tax, 122 sh ($79K)2025-11-25: Withheld for tax, 653 sh ($144K)2025-11-21: Withheld for tax, 319 sh ($64K)2025-11-20: Withheld for tax, 162 sh ($32K)2025-09-03: Award / grant, 26,161 sh ($0)2025-08-25: Withheld for tax, 653 sh ($31K)2025-08-21: Withheld for tax, 1,278 sh ($58K)2025-08-20: Withheld for tax, 1,095 sh ($49K)2025-05-25: Withheld for tax, 653 sh ($24K)2025-05-20: Withheld for tax, 162 sh ($7K)2025-05-09: Award / grant, 149,046 sh ($0)2025-04-20: Withheld for tax, 1,501 sh ($47K)2025-03-20: Withheld for tax, 1,558 sh ($88K)2025-03-12: Withheld for tax, 569 sh ($29K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-09-03SNDKSale2,594 @ $1543.76$4.0M−5.5% of holding44,732Form 4
2026-09-03SNDKSale200 @ $1563.68$313K−0.5% of holding43,814Form 4
2026-09-03SNDKSale160 @ $1537.49$246K−0.3% of holding47,646Form 4
2026-09-03SNDKSale120 @ $1561.69$187K−0.3% of holding44,014Form 4
2026-09-03SNDKSale120 @ $1553.35$186K−0.3% of holding44,372Form 4
2026-09-03SNDKSale120 @ $1533.69$184K−0.2% of holding47,966Form 4
2026-09-03SNDKSale80 @ $1557.79$125K−0.2% of holding44,174Form 4
2026-09-03SNDKSale80 @ $1547.46$124K−0.2% of holding44,572Form 4
2026-09-03SNDKSale80 @ $1546.02$124K−0.2% of holding44,652Form 4
2026-09-03SNDKSale80 @ $1542.67$123K−0.2% of holding47,326Form 4
2026-09-03SNDKSale80 @ $1541.01$123K−0.2% of holding47,406Form 4
2026-09-03SNDKSale80 @ $1539.61$123K−0.2% of holding47,486Form 4
2026-09-03SNDKSale80 @ $1538.41$123K−0.2% of holding47,566Form 4
2026-09-03SNDKSale80 @ $1535.65$123K−0.2% of holding47,806Form 4
2026-09-03SNDKSale80 @ $1534.48$123K−0.2% of holding47,886Form 4
2026-09-03SNDKSale80 @ $1530.52$122K−0.2% of holding48,126Form 4
2026-09-03SNDKSale80 @ $1529.70$122K−0.2% of holding48,206Form 4
2026-09-03SNDKSale80 @ $1526.81$122K−0.2% of holding48,326Form 4
2026-09-03SNDKSale80 @ $1523.61$122K−0.2% of holding48,406Form 4
2026-09-03SNDKSale80 @ $1520.93$122K−0.2% of holding48,526Form 4
2026-09-03SNDKSale78 @ $1555.57$121K−0.2% of holding44,254Form 4
2026-09-03SNDKSale80 @ $1515.05$121K−0.2% of holding48,726Form 4
2026-09-03SNDKSale68 @ $1519.23$103K−0.1% of holding48,606Form 4
2026-09-03SNDKSale52 @ $1517.68$79K−0.1% of holding48,674Form 4
2026-09-03SNDKSale40 @ $1571.04$63K−0.1% of holding43,734Form 4
2026-09-03SNDKSale40 @ $1564.40$63K−0.1% of holding43,774Form 4
2026-09-03SNDKSale40 @ $1558.90$62K−0.1% of holding44,134Form 4
2026-09-03SNDKSale40 @ $1554.02$62K−0.1% of holding44,332Form 4
2026-09-03SNDKSale40 @ $1550.48$62K−0.1% of holding44,492Form 4
2026-09-03SNDKSale40 @ $1548.85$62K−0.1% of holding44,532Form 4
2026-09-03SNDKSale40 @ $1532.02$61K−0.1% of holding48,086Form 4
2026-09-03SNDKSale40 @ $1527.58$61K−0.1% of holding48,286Form 4
2026-09-03SNDKSale40 @ $1522.10$61K−0.1% of holding48,486Form 4
2026-09-03SNDKSale40 @ $1513.23$61K−0.1% of holding48,806Form 4
2026-06-01SNDKSale999 @ $1755.31$1.8M−1.8% of holding53,678Form 4
2026-06-01SNDKSale600 @ $1758.40$1.1M−1.1% of holding52,677Form 4
2026-06-01SNDKSale401 @ $1757.00$705K−0.7% of holding53,277Form 4
28 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-03SNDKWithheld for tax3,24440,490Form 4
2026-08-25SNDKWithheld for tax65448,846Form 4
2026-08-21SNDKWithheld for tax32049,500Form 4
2026-08-20SNDKWithheld for tax27649,983Form 4
2026-08-20SNDKWithheld for tax16349,820Form 4
2026-08-20SNDKOption exercise27650,259Form 4
2026-08-20SNDKOption exercise276148,770Form 4
2026-06-02SNDKGift2,69449,983Form 4
2026-05-25SNDKWithheld for tax65354,677Form 4
2026-05-21SNDKWithheld for tax31955,330Form 4
2026-05-20SNDKWithheld for tax16255,649Form 4
2026-04-20SNDKWithheld for tax2,25155,811Form 4
2026-02-25SNDKWithheld for tax56658,062Form 4
2026-02-21SNDKWithheld for tax22358,628Form 4
2026-02-20SNDKWithheld for tax12258,851Form 4
2025-11-25SNDKWithheld for tax65358,973Form 4
2025-11-21SNDKWithheld for tax31959,626Form 4
2025-11-20SNDKWithheld for tax16259,945Form 4
2025-09-03SNDKAward / grant26,16160,107Form 4
2025-08-25SNDKWithheld for tax65333,946Form 4
2025-08-21SNDKWithheld for tax1,27834,599Form 4
2025-08-20SNDKWithheld for tax1,09535,877Form 4
2025-05-25SNDKWithheld for tax65336,972Form 4
2025-05-20SNDKWithheld for tax16237,625Form 4
2025-05-09SNDKAward / grant149,046149,046Form 4
2025-04-20SNDKWithheld for tax1,50137,787Form 4
2025-03-20SNDKWithheld for tax1,55839,288Form 4
2025-03-12SNDKWithheld for tax56940,846Form 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.