Guyer William

Officer · CORT

As of 2026-09-16, Guyer William has 93 Form 4 transactions on record across 1 company — 57 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 August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $482KIndirect: $0$482Kas of 2026-09-16
  • Direct $482K
  • Indirect $0
CORTdirect4,313 sh$482K

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

CORT · 93 trades
2026-09-01: Award / grant, 164 sh ($19K)2026-09-01: Award / grant, 164 sh ($0)2026-08-10: Sale, 11,530 sh ($1.3M)2026-08-10: Sale, 4,770 sh ($544K)2026-08-10: Option exercise, 16,300 sh ($353K)2026-08-10: Option exercise, 16,300 sh ($0)2026-08-04: Sale, 3,700 sh ($419K)2026-08-04: Option exercise, 3,700 sh ($80K)2026-08-04: Option exercise, 3,700 sh ($0)2026-07-07: Sale, 19,048 sh ($1.8M)2026-07-07: Option exercise, 20,000 sh ($433K)2026-07-07: Sale, 952 sh ($89K)2026-07-07: Option exercise, 20,000 sh ($0)2026-06-02: Sale, 20,000 sh ($1.4M)2026-06-02: Option exercise, 20,000 sh ($433K)2026-06-02: Option exercise, 20,000 sh ($0)2026-06-01: Award / grant, 877 sh ($62K)2026-06-01: Award / grant, 877 sh ($0)2026-05-05: Sale, 20,000 sh ($1.0M)2026-05-05: Option exercise, 20,000 sh ($433K)2026-05-05: Option exercise, 20,000 sh ($0)2026-04-07: Sale, 20,000 sh ($819K)2026-04-07: Option exercise, 20,000 sh ($433K)2026-04-07: Option exercise, 20,000 sh ($0)2026-03-20: Sale, 11,767 sh ($424K)2026-03-20: Option exercise, 11,767 sh ($255K)2026-03-20: Option exercise, 11,767 sh ($0)2026-03-04: Sale, 8,233 sh ($296K)2026-03-04: Option exercise, 8,233 sh ($178K)2026-03-04: Option exercise, 8,233 sh ($0)2026-03-02: Award / grant, 498 sh ($18K)2026-03-02: Award / grant, 498 sh ($0)2026-02-27: Award / grant, 140,000 sh ($0)2026-02-03: Sale, 20,000 sh ($817K)2026-02-03: Option exercise, 20,000 sh ($433K)2026-02-03: Option exercise, 20,000 sh ($0)2026-01-06: Sale, 20,000 sh ($704K)2026-01-06: Option exercise, 20,000 sh ($433K)2026-01-06: Option exercise, 20,000 sh ($0)2025-12-02: Sale, 19,360 sh ($1.5M)2025-12-02: Option exercise, 20,000 sh ($433K)2025-12-02: Sale, 640 sh ($52K)2025-12-02: Option exercise, 20,000 sh ($0)2025-12-02: Other acquisition, 787 sh ($0)2025-12-02: Gift, 787 sh ($0)2025-12-01: Award / grant, 224 sh ($18K)2025-12-01: Award / grant, 224 sh ($0)2025-11-25: Sale, 4,500 sh ($364K)2025-11-05: Sale, 13,164 sh ($996K)2025-11-05: Sale, 6,536 sh ($489K)2025-11-05: Option exercise, 20,000 sh ($433K)2025-11-05: Sale, 300 sh ($23K)2025-11-05: Option exercise, 20,000 sh ($0)2025-10-07: Sale, 20,000 sh ($1.8M)2025-10-07: Option exercise, 20,000 sh ($433K)2025-10-07: Option exercise, 20,000 sh ($0)2025-09-19: Gift, 200 sh ($0)2025-09-02: Sale, 15,594 sh ($1.1M)2025-09-02: Option exercise, 20,000 sh ($433K)2025-09-02: Sale, 4,406 sh ($312K)2025-09-02: Option exercise, 20,000 sh ($0)2025-08-08: Sale, 35,007 sh ($2.5M)2025-08-08: Option exercise, 35,007 sh ($758K)2025-08-08: Option exercise, 35,007 sh ($0)2025-08-05: Sale, 14 sh ($1K)2025-08-05: Option exercise, 14 sh ($303)2025-08-05: Option exercise, 14 sh ($0)2025-07-18: Sale, 500 sh ($37K)2025-07-18: Option exercise, 500 sh ($11K)2025-07-18: Option exercise, 500 sh ($0)2025-07-17: Sale, 4,379 sh ($322K)2025-07-17: Option exercise, 4,379 sh ($95K)2025-07-17: Option exercise, 4,379 sh ($0)2025-07-01: Sale, 100 sh ($7K)2025-07-01: Option exercise, 100 sh ($2K)2025-07-01: Option exercise, 100 sh ($0)2025-06-10: Sale, 16,918 sh ($1.2M)2025-06-10: Option exercise, 20,000 sh ($433K)2025-06-10: Sale, 3,082 sh ($224K)2025-06-10: Option exercise, 20,000 sh ($0)2025-05-16: Sale, 32,262 sh ($2.4M)2025-05-16: Option exercise, 32,262 sh ($698K)2025-05-16: Option exercise, 32,262 sh ($0)2025-05-06: Sale, 7,060 sh ($525K)2025-05-06: Option exercise, 7,060 sh ($153K)2025-05-06: Option exercise, 7,060 sh ($0)2025-04-01: Sale, 678 sh ($78K)2025-04-01: Option exercise, 678 sh ($15K)2025-04-01: Option exercise, 678 sh ($0)2025-03-04: Sale, 20,000 sh ($1.2M)2025-03-04: Option exercise, 20,000 sh ($385K)2025-03-04: Option exercise, 20,000 sh ($0)2025-02-28: Award / grant, 140,000 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-10CORTSale11,530 @ $113.18$1.3M−56.8% of holding8,755Form 4
2026-08-10CORTSale4,770 @ $114.04$544K−54.5% of holding3,985Form 4
2026-08-04CORTSale3,700 @ $113.12$419K−48.1% of holding3,985Form 4
2026-07-07CORTSale19,048 @ $93.11$1.8M−79.4% of holding4,937Form 4
2026-07-07CORTSale952 @ $93.54$89K−19.3% of holding3,985Form 4
2026-06-02CORTSale20,000 @ $70.60$1.4M−83.4% of holding3,985Form 4
2026-05-05CORTSale20,000 @ $51.83$1.0M−90.0% of holding2,231Form 4
2026-04-07CORTSale20,000 @ $40.97$819K−90.0% of holding2,231Form 4
2026-03-20CORTSale11,767 @ $36.01$424K−84.1% of holding2,231Form 4
2026-03-04CORTSale8,233 @ $35.99$296K−78.7% of holding2,231Form 4
2026-02-03CORTSale20,000 @ $40.87$817K−94.2% of holding1,235Form 4
2026-01-06CORTSale20,000 @ $35.18$704K−94.2% of holding1,235Form 4
2025-12-02CORTSale19,360 @ $80.05$1.5M−91.2% of holding1,875Form 4
2025-12-02CORTSale640 @ $80.88$52K−34.1% of holding1,235Form 4
2025-11-25CORTSale4,500 @ $80.90$364K−85.1% of holding787Form 4
2025-11-05CORTSale13,164 @ $75.64$996K−70.2% of holding5,587Form 4
2025-11-05CORTSale6,536 @ $74.75$489K−25.8% of holding18,751Form 4
2025-11-05CORTSale300 @ $76.28$23K−5.4% of holding5,287Form 4
2025-10-07CORTSale20,000 @ $89.94$1.8M−79.1% of holding5,287Form 4
2025-09-02CORTSale15,594 @ $70.39$1.1M−61.2% of holding9,893Form 4
2025-09-02CORTSale4,406 @ $70.85$312K−44.5% of holding5,487Form 4
2025-08-08CORTSale35,007 @ $71.77$2.5M−86.4% of holding5,487Form 4
2025-08-05CORTSale14 @ $71.77$1K−0.3% of holding5,487Form 4
2025-07-18CORTSale500 @ $73.44$37K−8.4% of holding5,487Form 4
2025-07-17CORTSale4,379 @ $73.48$322K−44.4% of holding5,487Form 4
2025-07-01CORTSale100 @ $73.50$7K−1.8% of holding5,487Form 4
2025-06-10CORTSale16,918 @ $72.36$1.2M−66.4% of holding8,569Form 4
2025-06-10CORTSale3,082 @ $72.75$224K−36.0% of holding5,487Form 4
2025-05-16CORTSale32,262 @ $74.17$2.4M−85.5% of holding5,487Form 4
2025-05-06CORTSale7,060 @ $74.31$525K−56.3% of holding5,487Form 4
2025-04-01CORTSale678 @ $114.51$78K−11.0% of holding5,487Form 4
2025-03-04CORTSale20,000 @ $59.07$1.2M−78.5% of holding5,487Form 4
61 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-01CORTAward / grant1644,149Form 4
2026-09-01CORTAward / grant1644,313Form 4
2026-08-10CORTOption exercise16,30020,285Form 4
2026-08-10CORTOption exercise16,300110,000Form 4
2026-08-04CORTOption exercise3,7007,685Form 4
2026-08-04CORTOption exercise3,700126,300Form 4
2026-07-07CORTOption exercise20,00023,985Form 4
2026-07-07CORTOption exercise20,000130,000Form 4
2026-06-02CORTOption exercise20,00023,985Form 4
2026-06-02CORTOption exercise20,000150,000Form 4
2026-06-01CORTAward / grant8773,108Form 4
2026-06-01CORTAward / grant8773,985Form 4
2026-05-05CORTOption exercise20,00022,231Form 4
2026-05-05CORTOption exercise20,000170,000Form 4
2026-04-07CORTOption exercise20,00022,231Form 4
2026-04-07CORTOption exercise20,000190,000Form 4
2026-03-20CORTOption exercise11,76713,998Form 4
2026-03-20CORTOption exercise11,767210,000Form 4
2026-03-04CORTOption exercise8,23310,464Form 4
2026-03-04CORTOption exercise8,233221,767Form 4
2026-03-02CORTAward / grant4981,733Form 4
2026-03-02CORTAward / grant4982,231Form 4
2026-02-27CORTAward / grant140,000140,000Form 4
2026-02-03CORTOption exercise20,00021,235Form 4
2026-02-03CORTOption exercise20,000230,000Form 4
2026-01-06CORTOption exercise20,00021,235Form 4
2026-01-06CORTOption exercise20,000250,000Form 4
2025-12-02CORTOption exercise20,00021,235Form 4
2025-12-02CORTOption exercise20,000270,000Form 4
2025-12-02CORTOther acquisition7871,235Form 4
2025-12-02CORTGift7870Form 4
2025-12-01CORTAward / grant224224Form 4
2025-12-01CORTAward / grant224448Form 4
2025-11-05CORTOption exercise20,00025,287Form 4
2025-11-05CORTOption exercise20,000290,000Form 4
2025-10-07CORTOption exercise20,00025,287Form 4
2025-10-07CORTOption exercise20,000310,000Form 4
2025-09-19CORTGift2005,287Form 4
2025-09-02CORTOption exercise20,00025,487Form 4
2025-09-02CORTOption exercise20,000330,000Form 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.