Alexander C. Karp

CEO Alexander C. Karp sells 397,744 shares ($54.1M) at PLTR on 2026-05-20; holds 6.43M shares post-transaction.

Alexander C. Karp executed 5 separate sales totaling 397,744 shares for $54,109,936.01 at a blended average price of $136.04. This represents a -5.8% reduction from his pre-transaction holdings of 6,830,002 shares. At the current price of $136.88, the stock is -34.0% from its 52-week high of $207.52 and down -10.3% over the past 30 days. Karp's cross-ticker track record shows 20 prior sells with an average 90-day return of -7.7% and a 90-day well-timed rate of 50.00%. His prior 5 trades specifically at PLTR, all sells executed on 2026-02-20, posted positive 90-day returns ranging from +1.2% to +3.4%, with 0 of 5 being well-timed by the sell-timing metric (a negative 90-day return would indicate well-timed selling). The company reports revenue of $1,632,583,000.00 with net income of $870,527,000.00, annual revenue growth of +56.2%, and a P/E ratio of 144.08.

Karp sold 493,025 shares ($66.0M) across 10 transactions at $132.01–$135.73; stock since fell 37.8% from 52-week high.

Alexander C. Karp executed 10 separate sales totaling 493,025 shares for $65,955,987.59 on 2026-02-20 at prices ranging from $132.01 to $135.73, reducing his holdings by 7.1%. The current price of $128.84 is now 37.8% below the 52-week high of $207.18 and down 24.0% over the past 30 days. Karp's cross-ticker track record shows a 100.00% well-timed rate on his 20 prior sells (all subsequent 90-day periods posted negative returns), and his same-ticker history at PLTR is similarly consistent—all 5 prior PLTR sales achieved negative 90-day returns. This filing reflects a continued pattern of sales that have preceded stock declines, though the FLAG indicates this conversion involves derivative securities and the Table II derivative position is not yet fully populated in the database; the shares_after figure of 6,432,258 does not represent the insider's total position.

CEO Karp sells 404,889 shares ($66.0M) across 22 transactions on Nov 20-21 at blended avg $163.12; stock down -12.1% in 30d.

Karp Alexander C. executed 22 separate sales totaling 404,889 shares for $66,043,701.33 across November 20-21, reducing his stake by 5.9% to 6,432,258 shares post-transaction. The multi-tranche execution—with prices ranging from $153.43 to $172.77—suggests a structured, sustained liquidity event rather than a single tactical decision. The filing contains a derivative conversion (Form 4 Table II), so the reported post-transaction holdings do not reflect his complete position. Against this activity, Palantir's stock has declined 12.1% over the past 30 days and now trades 21.7% below its 52-week high of $207.18, creating context for evaluating the insider's timing relative to current valuation, though the multi-day, multi-price execution manner indicates scheduling rather than opportunistic exit.

Karp sells 409,072 PLTR shares across 18 transactions (Aug 20-21) for $62,736,619.43; holds 6,432,258 shares post-sale.

Alexander C. Karp executed 18 separate sales totaling 409,072 shares for $62,736,619.43 across August 20-21 at prices ranging from $143.12 to $157.18, reducing his position by 6.0% to 6,432,258 shares. The sale occurred as PLTR traded near its 52-week high of $186.97 (currently $158.74, -15.1% from peak) and follows a strong recent run (+28.7% over 90 days, +2.7% over 30 days). His prior five trades at PLTR (all in May 2025) showed consistently positive 90-day returns (24.4%–38.7%), meaning his recent sells at PLTR have not preceded stock declines. The company's fundamentals remain strong (revenue $1,003,697,000.00, net income $326,727,000.00, annual revenue growth +28.8%) alongside a markedly elevated P/E of 496.06. Given the FLAG indicating derivative-conversion activity (Table II not yet populated), this filing represents a partial sale of a converted-security batch rather than a position-wide exit.

Karp sold 398,807 shares for $50.4M (blended avg $126.35) in 7 transactions on May 20-21; retains 6.43M shares post-sale.

Karp Alexander C. executed 7 separate sales totaling 398,807 shares for $50,389,568.33 across May 20–21, at prices ranging from $125.26 to $127.71, representing a -5.8% reduction in his PLTR holdings. The filing contains a derivative conversion (Table II data not yet available), so this represents a partial sale of a specific batch, not a full position exit. His prior 5 sales at PLTR (all on 2025-02-21) saw the stock advance 12.9%–16.8% in the 90 days following each sale, indicating none of those prior transactions were well-timed on the downside. Current stock price is $122.29, down 6.1% from the 52-week high but up 30.1% over the last 30 days—the recent rally has coincided with strong Q1 fundamentals (revenue $883.9M, net income $214.0M, 28.8% annual revenue growth). His cross-ticker track record shows 20 prior sells with an average 90-day well-timed rate of 0.00%, contrasting sharply with a positive 25.1% average 90-day return, meaning prior sales were broadly purchased back into at lower prices within 90 days.

Karp sold 432.6K shares ($44.6M) across 17 transactions; 6.43M shares remain post-transaction.

Karp Alexander C. executed 17 separate sales totaling 432,565 shares for $44,557,681.41 across February 20–21, 2025, reducing his holdings by 6.3% to 6,432,258 shares. The sales span a narrow price band ($96.43–$107.09 on Feb 20; $104.70–$108.28 on Feb 21) with a blended average price of $103.01. Notably, the stock traded as high as $124.62 in the 52-week period and is currently at $90.68, representing a -27.2% gap from the 52-week high and placing the transaction prices in the upper half of the historical range. At the SAME-TICKER level, Karp's prior 5 trades at PLTR in November 2024 all delivered positive 90-day returns (ranging from +66.1% to +82.8%), indicating poor sell timing in that earlier window; the 90-day well-timed rate at this ticker is 0 of 5. This current filing contains a derivative conversion (per the FLAG), so the reported 6.43M shares in Table I represent only the common shares liquidated, not necessarily the insider's full position. The scale of the sale ($44.6M across two trading days) and the precision of execution across 17 price levels warrant monitoring for the post-execution return profile and any material corporate developments in the near term.

Karp sells 2,507,329 shares for $157,860,428.39 across 10 transactions Nov 20-22; stock up 51.1% in 30 days

Alexander C. Karp executed 10 separate sales totaling 2,507,329 shares for $157,860,428.39 between November 20–22, 2024, at prices ranging from $60.68 to $63.98, reducing his holdings by 28.0% from 8,939,587 to 6,432,258 shares. The sales occurred as PLTR rallied sharply: the stock is up 51.1% over the prior 30 days and 102.5% over 90 days, currently trading at $64.35 near its 52-week high of $65.77. His cross-ticker track record shows a 90-day well-timed sell rate of 0.00%, with an average 90-day post-sell return of +93.1%, indicating his prior sells have historically coincided with continued upside rather than declines. The magnitude and velocity of this multi-day block sale—executed as the stock approached cyclical highs—merit close observation given the unusually strong momentum backdrop and the company's elevated valuation (P/E 306.43).

Karp sells 1,144,069 shares across 4 transactions for $73,044,303.16; holds 6,432,258 shares post-sale.

Karp Alexander C. executed 4 separate sales totaling 1,144,069 shares for $73,044,303.16 (blended average $63.85) between 2024-11-18 and 2024-11-20, reducing holdings by 15.1%. The sales occurred near the stock's 52-week high of $65.77 (current $62.12, -5.6% from peak), in a period of strong momentum: 30-day return +45.5%, 90-day return +94.6%. A FLAG indicates this filing contains a derivative conversion, meaning the Form 4 Table I shares_after (6,432,258 shares) does not represent the insider's complete position; the full position resides in derivative holdings not yet populated in this database. This is a discrete batch sale, not a position exit. Across his cross-ticker track record, Karp's 20 prior sells averaged +15.8% return over 30 days and +90.9% over 90 days, with a 0.00% well-timed rate (indicating his prior sales missed upside moves). At PLTR specifically, all 5 prior trades lack measurable 90-day outcomes, so this transaction cannot be contextualized within same-ticker historical accuracy.

Karp sold 6,323,602 shares for $399,064,043.27 across 2 transactions; stock now at $65.77, up 56.9% in 30 days.

Karp Alexander C. executed 2 separate sales totaling 6,323,602 shares (6.32M shares) for $399,064,043.27 ($399.1M) at a blended average price of $63.11, reducing his holdings by 49.6% from 12,755,860 shares to 6,432,258 shares. This filing involves a derivative-conversion transaction, so his true total position includes unconverted derivative securities not yet reflected in the database. The timing of these sales occurred as PLTR rallied sharply: the stock has gained 56.9% over 30 days and 105.0% over 90 days, now trading at $65.77 (+0.0% from its 52-week high of $65.77). His cross-ticker track record shows 20 prior sells with an average 90-day return of +52.4%, indicating he has historically sold before rallies rather than declines (0.00% well-timed rate)—a pattern of selling that has been followed by gains. Recent prior activity at PLTR shows 5 separate sales within a week (2024-11-05 through 2024-11-07), with outcomes not yet measurable; the current sale continues a rapid-succession selling pattern during a strong uptrend in the stock.

Karp sold 12,343,707 shares of PLTR for $650.6M across 6 transactions (Nov 5–7), reducing stake 65.7%; derivative conversion noted.

Karp Alexander C. executed 6 separate sales totaling 12,343,707 shares for $650,638,388.31 between November 5–7, 2024, at prices ranging from $47.49 to $56.12 and a blended average of $52.71. This reduces his holdings from 18,775,965 shares to 6,432,258 shares (-65.7%). The filing is flagged as a derivative conversion transaction, meaning the insider's full position includes unreported derivative securities in Table II; the reported sale represents a partial liquidation of a specific tranche, not a complete exit. Across his cross-ticker track record, Karp's prior 20 open-market sells averaged a 90-day return of +21.5%, indicating his historical sells have been poorly timed relative to subsequent stock appreciation. At PLTR specifically, his 5 prior trades show recent activity (October and September 2024), though measurable 90-day outcomes remain unavailable for most. The stock price has risen 34.8% over the past 30 days and 86.2% over 90 days, and currently trades at $55.88, near its 52-week high of $55.88. The elevated P/E of 266.10 and strong revenue growth of 16.8% annually reflect a high-valuation profile; this transaction occurs after substantial recent appreciation.