Cohen Stephen Andrew

Director · Officer · PLTR

As of 2026-09-16, Cohen Stephen Andrew has 183 Form 4 transactions on record across 1 company — 50 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 May in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $55.9MIndirect: $0$55.9Mas of 2026-09-16
  • Direct $55.9M
  • Indirect $0
PLTRdirect320,526 sh$55.9M

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

PLTR · 183 trades
2026-05-20: Sale, 180,187 sh ($24.5M)2026-05-20: Sale, 98,291 sh ($13.4M)2026-05-20: Sale, 22,196 sh ($3.0M)2026-05-20: Sale, 13,923 sh ($1.9M)2026-05-20: Sale, 5,337 sh ($710K)2026-05-20: Conversion, 319,934 sh ($0)2026-05-20: Option exercise, 675,000 sh ($0)2026-05-20: Option exercise, 675,000 sh ($0)2026-05-20: Conversion, 319,934 sh2026-05-20: Conversion, 319,934 sh2026-02-20: Sale, 100,910 sh ($13.4M)2026-02-20: Sale, 89,924 sh ($12.1M)2026-02-20: Sale, 85,051 sh ($11.4M)2026-02-20: Sale, 32,376 sh ($4.3M)2026-02-20: Sale, 18,827 sh ($2.6M)2026-02-20: Conversion, 327,088 sh ($0)2026-02-20: Option exercise, 675,000 sh ($0)2026-02-20: Option exercise, 675,000 sh ($0)2026-02-20: Conversion, 327,088 sh2026-02-20: Conversion, 327,088 sh2025-11-21: Sale, 38,303 sh ($6.0M)2025-11-21: Sale, 468 sh ($74K)2025-11-21: Sale, 365 sh ($56K)2025-11-21: Conversion, 39,136 sh ($0)2025-11-21: Conversion, 39,136 sh2025-11-21: Conversion, 39,136 sh2025-11-20: Sale, 38,551 sh ($6.7M)2025-11-20: Sale, 38,368 sh ($6.0M)2025-11-20: Sale, 37,434 sh ($5.9M)2025-11-20: Sale, 34,005 sh ($5.8M)2025-11-20: Sale, 28,965 sh ($5.0M)2025-11-20: Sale, 19,068 sh ($3.0M)2025-11-20: Sale, 18,328 sh ($2.9M)2025-11-20: Sale, 17,415 sh ($2.8M)2025-11-20: Sale, 14,916 sh ($2.4M)2025-11-20: Sale, 11,052 sh ($1.8M)2025-11-20: Sale, 8,864 sh ($1.5M)2025-11-20: Sale, 8,921 sh ($1.5M)2025-11-20: Sale, 6,749 sh ($1.1M)2025-11-20: Sale, 5,718 sh ($960K)2025-11-20: Sale, 5,349 sh ($877K)2025-11-20: Sale, 4,684 sh ($791K)2025-11-20: Sale, 4,139 sh ($687K)2025-11-20: Sale, 3,560 sh ($617K)2025-11-20: Sale, 2,549 sh ($413K)2025-11-20: Conversion, 308,635 sh ($0)2025-11-20: Option exercise, 675,000 sh ($0)2025-11-20: Option exercise, 675,000 sh ($0)2025-11-20: Conversion, 308,635 sh2025-11-20: Conversion, 308,635 sh2025-08-21: Sale, 82,824 sh ($12.9M)2025-08-21: Sale, 67,474 sh ($10.5M)2025-08-21: Sale, 8,270 sh ($1.3M)2025-08-21: Sale, 1,596 sh ($251K)2025-08-21: Conversion, 160,164 sh ($0)2025-08-21: Conversion, 160,164 sh2025-08-21: Conversion, 160,164 sh2025-08-20: Sale, 43,497 sh ($6.7M)2025-08-20: Sale, 25,972 sh ($4.0M)2025-08-20: Sale, 24,411 sh ($3.8M)2025-08-20: Sale, 15,117 sh ($2.2M)2025-08-20: Sale, 13,823 sh ($2.1M)2025-08-20: Sale, 12,420 sh ($1.9M)2025-08-20: Sale, 10,982 sh ($1.7M)2025-08-20: Sale, 11,043 sh ($1.7M)2025-08-20: Sale, 8,195 sh ($1.2M)2025-08-20: Sale, 6,470 sh ($926K)2025-08-20: Sale, 5,443 sh ($789K)2025-08-20: Sale, 5,418 sh ($779K)2025-08-20: Sale, 4,956 sh ($734K)2025-08-20: Sale, 3,973 sh ($600K)2025-08-20: Option exercise, 675,000 sh ($0)2025-08-20: Option exercise, 675,000 sh ($0)2025-08-20: Conversion, 191,720 sh ($0)2025-08-20: Conversion, 191,720 sh2025-08-20: Conversion, 191,720 sh2025-05-21: Sale, 15,866 sh ($2.0M)2025-05-21: Sale, 12,418 sh ($1.6M)2025-05-21: Sale, 6,073 sh ($770K)2025-05-21: Conversion, 34,357 sh ($0)2025-05-21: Conversion, 34,357 sh2025-05-21: Conversion, 34,357 sh2025-05-20: Sale, 155,287 sh ($19.6M)2025-05-20: Sale, 111,834 sh ($14.2M)2025-05-20: Sale, 41,744 sh ($5.2M)2025-05-20: Sale, 831 sh ($106K)2025-05-20: Option exercise, 675,000 sh ($0)2025-05-20: Conversion, 309,696 sh ($0)2025-05-20: Option exercise, 675,000 sh ($0)2025-05-20: Conversion, 309,696 sh2025-05-20: Conversion, 309,696 sh2025-03-17: Sale, 142,066 sh ($12.5M)2025-03-17: Sale, 73,225 sh ($6.3M)2025-03-17: Sale, 58,051 sh ($5.1M)2025-03-17: Sale, 30,604 sh ($2.6M)2025-03-17: Sale, 6,054 sh ($537K)2025-03-17: Option exercise, 310,000 sh ($0)2025-03-17: Option exercise, 310,000 sh ($0)2025-03-17: Option exercise, 310,000 sh ($0)2025-03-17: Conversion, 310,000 sh2025-03-17: Conversion, 310,000 sh2025-03-14: Sale, 454,784 sh ($39.0M)2025-03-14: Sale, 317,319 sh ($27.5M)2025-03-14: Sale, 225,819 sh ($19.2M)2025-03-14: Sale, 186,092 sh ($15.4M)2025-03-14: Sale, 65,986 sh ($5.5M)2025-03-14: Option exercise, 1,250,000 sh ($0)2025-03-14: Option exercise, 1,250,000 sh ($0)2025-03-14: Option exercise, 1,250,000 sh ($0)2025-03-14: Conversion, 1,250,000 sh2025-03-14: Conversion, 1,250,000 sh2025-03-13: Sale, 579,512 sh ($46.2M)2025-03-13: Sale, 309,208 sh ($24.4M)2025-03-13: Sale, 148,358 sh ($12.0M)2025-03-13: Sale, 113,212 sh ($9.3M)2025-03-13: Sale, 94,161 sh ($7.8M)2025-03-13: Sale, 5,549 sh ($463K)2025-03-13: Option exercise, 1,250,000 sh ($0)2025-03-13: Option exercise, 1,250,000 sh ($0)2025-03-13: Option exercise, 1,250,000 sh ($0)2025-03-13: Conversion, 1,250,000 sh2025-03-13: Conversion, 1,250,000 sh2025-03-12: Sale, 511,945 sh ($42.7M)2025-03-12: Sale, 293,040 sh ($24.2M)2025-03-12: Sale, 190,809 sh ($15.5M)2025-03-12: Sale, 146,622 sh ($12.3M)2025-03-12: Sale, 107,584 sh ($8.7M)2025-03-12: Option exercise, 1,250,000 sh ($0)2025-03-12: Option exercise, 1,250,000 sh ($0)2025-03-12: Option exercise, 1,250,000 sh ($0)2025-03-12: Conversion, 1,250,000 sh2025-03-12: Conversion, 1,250,000 sh2025-02-21: Sale, 301,847 sh ($30.8M)2025-02-21: Sale, 20,368 sh ($2.2M)2025-02-21: Sale, 14,486 sh ($1.5M)2025-02-21: Sale, 13,805 sh ($1.5M)2025-02-21: Sale, 10,012 sh ($1.0M)2025-02-21: Sale, 5,748 sh ($622K)2025-02-21: Conversion, 301,847 sh ($0)2025-02-21: Conversion, 64,419 sh ($0)2025-02-21: Conversion, 64,419 sh2025-02-21: Conversion, 301,847 sh2025-02-21: Conversion, 301,847 sh2025-02-21: Conversion, 64,419 sh2025-02-20: Sale, 41,301 sh ($4.4M)2025-02-20: Sale, 37,627 sh ($3.9M)2025-02-20: Sale, 35,579 sh ($3.6M)2025-02-20: Sale, 32,990 sh ($3.4M)2025-02-20: Sale, 34,357 sh ($3.4M)2025-02-20: Sale, 33,932 sh ($3.4M)2025-02-20: Sale, 30,101 sh ($3.0M)2025-02-20: Sale, 27,223 sh ($2.8M)2025-02-20: Sale, 26,631 sh ($2.8M)2025-02-20: Sale, 4,599 sh ($448K)2025-02-20: Sale, 3,474 sh ($335K)2025-02-20: Sale, 920 sh ($99K)2025-02-20: Option exercise, 675,000 sh ($0)2025-02-20: Option exercise, 675,000 sh ($0)2025-02-20: Conversion, 308,734 sh ($0)2025-02-20: Conversion, 308,734 sh2025-02-20: Conversion, 308,734 sh2024-12-13: Sale, 212,296 sh ($15.7M)2024-12-13: Sale, 106,688 sh ($8.0M)2024-12-13: Sale, 67,744 sh ($5.0M)2024-12-13: Sale, 29,325 sh ($2.2M)2024-12-13: Conversion, 416,053 sh ($0)2024-12-13: Conversion, 416,053 sh2024-12-13: Conversion, 416,053 sh2024-12-12: Sale, 221,870 sh ($16.3M)2024-12-12: Sale, 123,508 sh ($9.0M)2024-12-12: Sale, 102,222 sh ($7.6M)2024-12-12: Sale, 2,400 sh ($180K)2024-12-12: Conversion, 450,000 sh ($0)2024-12-12: Conversion, 450,000 sh2024-12-12: Conversion, 450,000 sh2024-12-11: Sale, 121,200 sh ($8.6M)2024-12-11: Sale, 115,066 sh ($8.2M)2024-12-11: Sale, 98,992 sh ($7.2M)2024-12-11: Sale, 67,186 sh ($4.7M)2024-12-11: Sale, 47,556 sh ($3.3M)2024-12-11: Conversion, 450,000 sh ($0)2024-12-11: Conversion, 450,000 sh2024-12-11: Conversion, 450,000 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-05-20PLTRSale180,187 @ $136.08$24.5M−64.6% of holding98,883Form 4
2026-05-20PLTRSale98,291 @ $136.61$13.4M−99.4% of holding592Form 4
2026-05-20PLTRSale22,196 @ $135.09$3.0M−7.4% of holding279,070Form 4
2026-05-20PLTRSale13,923 @ $134.20$1.9M−4.4% of holding301,266Form 4
2026-05-20PLTRSale5,337 @ $132.95$710K−1.7% of holding315,189Form 4
2026-02-20PLTRSale100,910 @ $132.86$13.4M−34.2% of holding194,394Form 4
2026-02-20PLTRSale89,924 @ $134.83$12.1M−82.2% of holding19,419Form 4
2026-02-20PLTRSale85,051 @ $133.76$11.4M−43.8% of holding109,343Form 4
2026-02-20PLTRSale32,376 @ $132.03$4.3M−9.9% of holding295,304Form 4
2026-02-20PLTRSale18,827 @ $135.73$2.6M−97.0% of holding592Form 4
2025-11-21PLTRSale38,303 @ $156.26$6.0M−97.3% of holding1,060Form 4
2025-11-21PLTRSale468 @ $157.74$74K−44.2% of holding592Form 4
2025-11-21PLTRSale365 @ $153.43$56K−0.9% of holding39,363Form 4
2025-11-20PLTRSale38,551 @ $172.77$6.7M−90.3% of holding4,152Form 4
2025-11-20PLTRSale38,368 @ $157.25$6.0M−14.1% of holding233,463Form 4
2025-11-20PLTRSale37,434 @ $158.14$5.9M−16.0% of holding196,029Form 4
2025-11-20PLTRSale34,005 @ $172.00$5.8M−44.3% of holding42,703Form 4
2025-11-20PLTRSale28,965 @ $170.91$5.0M−27.4% of holding76,708Form 4
2025-11-20PLTRSale19,068 @ $155.31$3.0M−6.2% of holding290,159Form 4
2025-11-20PLTRSale18,328 @ $156.19$2.9M−6.3% of holding271,831Form 4
2025-11-20PLTRSale17,415 @ $159.08$2.8M−8.9% of holding178,614Form 4
2025-11-20PLTRSale14,916 @ $160.16$2.4M−8.4% of holding163,698Form 4
2025-11-20PLTRSale11,052 @ $161.16$1.8M−6.8% of holding152,646Form 4
2025-11-20PLTRSale8,864 @ $169.94$1.5M−7.7% of holding105,673Form 4
2025-11-20PLTRSale8,921 @ $163.37$1.5M−5.9% of holding141,176Form 4
2025-11-20PLTRSale6,749 @ $166.73$1.1M−5.1% of holding124,939Form 4
2025-11-20PLTRSale5,718 @ $167.93$960K−4.6% of holding119,221Form 4
2025-11-20PLTRSale5,349 @ $164.05$877K−3.8% of holding135,827Form 4
2025-11-20PLTRSale4,684 @ $168.90$791K−3.9% of holding114,537Form 4
2025-11-20PLTRSale4,139 @ $165.94$687K−3.0% of holding131,688Form 4
2025-11-20PLTRSale3,560 @ $173.41$617K−85.7% of holding592Form 4
2025-11-20PLTRSale2,549 @ $161.85$413K−1.7% of holding150,097Form 4
2025-08-21PLTRSale82,824 @ $155.53$12.9M−54.3% of holding69,662Form 4
2025-08-21PLTRSale67,474 @ $156.15$10.5M−96.9% of holding2,188Form 4
2025-08-21PLTRSale8,270 @ $154.51$1.3M−5.1% of holding152,486Form 4
2025-08-21PLTRSale1,596 @ $157.18$251K−72.9% of holding592Form 4
2025-08-20PLTRSale43,497 @ $154.16$6.7M−54.7% of holding35,985Form 4
2025-08-20PLTRSale25,972 @ $153.12$4.0M−24.6% of holding79,482Form 4
2025-08-20PLTRSale24,411 @ $154.89$3.8M−67.8% of holding11,574Form 4
2025-08-20PLTRSale15,117 @ $146.05$2.2M−8.6% of holding159,864Form 4
2025-08-20PLTRSale13,823 @ $149.93$2.1M−10.3% of holding120,470Form 4
2025-08-20PLTRSale12,420 @ $149.04$1.9M−8.5% of holding134,293Form 4
2025-08-20PLTRSale10,982 @ $156.11$1.7M−94.9% of holding592Form 4
2025-08-20PLTRSale11,043 @ $152.05$1.7M−9.5% of holding105,454Form 4
2025-08-20PLTRSale8,195 @ $146.93$1.2M−5.1% of holding151,669Form 4
2025-08-20PLTRSale6,470 @ $143.12$926K−3.4% of holding185,842Form 4
2025-08-20PLTRSale5,443 @ $144.87$789K−3.0% of holding174,981Form 4
2025-08-20PLTRSale5,418 @ $143.81$779K−2.9% of holding180,424Form 4
2025-08-20PLTRSale4,956 @ $148.07$734K−3.3% of holding146,713Form 4
2025-08-20PLTRSale3,973 @ $151.05$600K−3.3% of holding116,497Form 4
2025-05-21PLTRSale15,866 @ $126.18$2.0M−70.4% of holding6,665Form 4
2025-05-21PLTRSale12,418 @ $125.26$1.6M−35.5% of holding22,531Form 4
2025-05-21PLTRSale6,073 @ $126.85$770K−91.1% of holding592Form 4
2025-05-20PLTRSale155,287 @ $126.24$19.6M−57.8% of holding113,257Form 4
2025-05-20PLTRSale111,834 @ $126.94$14.2M−98.7% of holding1,423Form 4
2025-05-20PLTRSale41,744 @ $125.46$5.2M−13.5% of holding268,544Form 4
2025-05-20PLTRSale831 @ $127.71$106K−58.4% of holding592Form 4
2025-03-17PLTRSale142,066 @ $87.93$12.5M−95.5% of holding6,646Form 4
2025-03-17PLTRSale73,225 @ $85.96$6.3M−26.2% of holding206,763Form 4
2025-03-17PLTRSale58,051 @ $87.20$5.1M−28.1% of holding148,712Form 4
2025-03-17PLTRSale30,604 @ $85.18$2.6M−9.9% of holding279,988Form 4
2025-03-17PLTRSale6,054 @ $88.63$537K−91.1% of holding592Form 4
2025-03-14PLTRSale454,784 @ $85.79$39.0M−58.9% of holding317,911Form 4
2025-03-14PLTRSale317,319 @ $86.64$27.5M−99.8% of holding592Form 4
2025-03-14PLTRSale225,819 @ $84.92$19.2M−22.6% of holding772,695Form 4
2025-03-14PLTRSale186,092 @ $82.88$15.4M−14.9% of holding1,064,500Form 4
2025-03-14PLTRSale65,986 @ $83.61$5.5M−6.2% of holding998,514Form 4
2025-03-13PLTRSale579,512 @ $79.79$46.2M−61.6% of holding361,872Form 4
2025-03-13PLTRSale309,208 @ $79.06$24.4M−24.7% of holding941,384Form 4
2025-03-13PLTRSale148,358 @ $80.65$12.0M−41.0% of holding213,514Form 4
2025-03-13PLTRSale113,212 @ $81.88$9.3M−53.0% of holding100,302Form 4
2025-03-13PLTRSale94,161 @ $82.87$7.8M−93.9% of holding6,141Form 4
2025-03-13PLTRSale5,549 @ $83.49$463K−90.4% of holding592Form 4
2025-03-12PLTRSale511,945 @ $83.49$42.7M−77.7% of holding147,214Form 4
2025-03-12PLTRSale293,040 @ $82.41$24.2M−30.8% of holding659,159Form 4
2025-03-12PLTRSale190,809 @ $81.44$15.5M−16.7% of holding952,199Form 4
2025-03-12PLTRSale146,622 @ $84.10$12.3M−99.6% of holding592Form 4
2025-03-12PLTRSale107,584 @ $80.63$8.7M−8.6% of holding1,143,008Form 4
2025-02-21PLTRSale301,847 @ $102.14$30.8M−99.8% of holding592Form 4
2025-02-21PLTRSale20,368 @ $105.63$2.2M−37.0% of holding34,631Form 4
74 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-05-20PLTRConversion319,93413,887,004Form 4
2026-05-20PLTROption exercise675,00014,206,938Form 4
2026-05-20PLTROption exercise675,0000Form 4
2026-05-20PLTRConversion319,934320,526Form 4
2026-05-20PLTRConversion319,934320,526Form 4
2026-02-20PLTRConversion327,08813,531,938Form 4
2026-02-20PLTROption exercise675,00013,859,026Form 4
2026-02-20PLTROption exercise675,000675,000Form 4
2026-02-20PLTRConversion327,088327,680Form 4
2026-02-20PLTRConversion327,088327,680Form 4
2025-11-21PLTRConversion39,13613,184,026Form 4
2025-11-21PLTRConversion39,13639,728Form 4
2025-11-21PLTRConversion39,13639,728Form 4
2025-11-20PLTRConversion308,63513,223,162Form 4
2025-11-20PLTROption exercise675,0001,350,000Form 4
2025-11-20PLTROption exercise675,00013,531,797Form 4
2025-11-20PLTRConversion308,635309,227Form 4
2025-11-20PLTRConversion308,635309,227Form 4
2025-08-21PLTRConversion160,16412,856,797Form 4
2025-08-21PLTRConversion160,164160,756Form 4
2025-08-21PLTRConversion160,164160,756Form 4
2025-08-20PLTROption exercise675,0002,025,000Form 4
2025-08-20PLTROption exercise675,00013,208,681Form 4
2025-08-20PLTRConversion191,72013,016,961Form 4
2025-08-20PLTRConversion191,720192,312Form 4
2025-08-20PLTRConversion191,720192,312Form 4
2025-05-21PLTRConversion34,35712,533,681Form 4
2025-05-21PLTRConversion34,35734,949Form 4
2025-05-21PLTRConversion34,35734,949Form 4
2025-05-20PLTROption exercise675,00012,877,734Form 4
2025-05-20PLTRConversion309,69612,568,038Form 4
2025-05-20PLTROption exercise675,0002,700,000Form 4
2025-05-20PLTRConversion309,696310,288Form 4
2025-05-20PLTRConversion309,696310,288Form 4
2025-03-17PLTROption exercise310,00012,512,734Form 4
2025-03-17PLTROption exercise310,00012,202,734Form 4
2025-03-17PLTROption exercise310,0008,341,568Form 4
2025-03-17PLTRConversion310,000310,592Form 4
2025-03-17PLTRConversion310,000310,592Form 4
2025-03-14PLTROption exercise1,250,00013,452,734Form 4

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

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