Matthew D Kaufman

CIK 2044191 · View on SEC EDGAR ↗

Insider

First SEC filing: March 26, 2025 · Latest: March 26, 2025

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Insider at

Insider transactions

0 buys (P) 26 sells (S) Net: $-12,642,131 + 5 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

5 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
May 20, 2026 RBLX S 1,410 $44.42 $62,632 362,910 Direct -0.39% Disposed -14.8% (price as of 2026-08-20)
May 20, 2026 RBLX S 12,756 $45.36 $578,612 350,154 Direct -3.51% Disposed -16.5% (price as of 2026-08-20)
May 20, 2026 RBLX S 190 $45.89 $8,719 349,964 Direct -0.05% Disposed -17.5% (price as of 2026-08-20)
April 13, 2026 RBLX S 13,225 $57.94 $766,256 364,420 Direct -3.50% Disposed -34.7% (price as of 2026-08-20)
April 13, 2026 RBLX S 100 $58.45 $5,845 364,320 Direct -0.03% Disposed -35.2% (price as of 2026-08-20)
Feb. 20, 2026 RBLX S 5,588 $60.94 $340,533 301,675 Direct -1.82% Disposed -37.9% (price as of 2026-08-20)
Feb. 20, 2026 RBLX S 8,589 $61.88 $531,487 293,086 Direct -2.85% Disposed -38.8% (price as of 2026-08-20)
Feb. 20, 2026 RBLX S 1,050 $62.73 $65,866 292,036 Direct -0.36% Disposed -39.7% (price as of 2026-08-20)
Feb. 10, 2026 RBLX S 27,634 $72.61 $2,006,505 309,663 Direct -8.19% Disposed -47.9% (price as of 2026-08-20)
Feb. 10, 2026 RBLX S 2,400 $73.15 $175,560 307,263 Direct -0.78% Disposed -48.3% (price as of 2026-08-20)
Nov. 20, 2025 RBLX S 10b5-1 6,000 $98.21 $589,260 254,642 Direct -2.30% Disposed -61.5% (price as of 2026-08-20)
Nov. 20, 2025 RBLX S 3,200 $93.49 $299,168 251,442 Direct -1.26% Disposed -59.5% (price as of 2026-08-20)
Nov. 20, 2025 RBLX S 2,526 $94.57 $238,884 248,916 Direct -1.00% Disposed -60.0% (price as of 2026-08-20)
Nov. 20, 2025 RBLX S 4,886 $95.52 $466,711 244,030 Direct -1.96% Disposed -60.4% (price as of 2026-08-20)
Nov. 20, 2025 RBLX S 3,595 $96.55 $347,097 240,435 Direct -1.47% Disposed -60.8% (price as of 2026-08-20)
Nov. 20, 2025 RBLX S 660 $97.15 $64,119 239,775 Direct -0.27% Disposed -61.0% (price as of 2026-08-20)
Nov. 6, 2025 RBLX S 10b5-1 6,000 $101.48 $608,880 260,642 Direct -2.25% Disposed -62.7% (price as of 2026-08-20)
Nov. 3, 2025 RBLX S 10b5-1 6,000 $112.99 $677,940 266,642 Direct -2.20% Disposed -66.5% (price as of 2026-08-20)
Oct. 2, 2025 RBLX S 10b5-1 6,000 $135.02 $810,120 272,642 Direct -2.15% Disposed -72.0% (price as of 2026-08-20)
Sept. 18, 2025 RBLX S 10b5-1 6,000 $136.55 $819,300 278,642 Direct -2.11% Disposed -72.3% (price as of 2026-08-20)
Sept. 4, 2025 RBLX S 10b5-1 6,000 $134.20 $805,200 275,015 Direct -2.14% Disposed -71.8% (price as of 2026-08-20)
Aug. 21, 2025 RBLX S 10b5-1 6,000 $116.84 $701,040 281,015 Direct -2.09% Disposed -67.6% (price as of 2026-08-20)
Aug. 20, 2025 RBLX S 1,230 $116.05 $142,742 299,993 Direct -0.41% Disposed -67.4% (price as of 2026-08-20)
Aug. 20, 2025 RBLX S 3,945 $117.02 $461,644 296,048 Direct -1.32% Disposed -67.7% (price as of 2026-08-20)
Aug. 20, 2025 RBLX S 5,621 $117.97 $663,109 290,427 Direct -1.90% Disposed -67.9% (price as of 2026-08-20)
Aug. 20, 2025 RBLX S 3,412 $118.67 $404,902 287,015 Direct -1.17% Disposed -68.1% (price as of 2026-08-20)
Aug. 7, 2025 RBLX S 10b5-1 6,000 $133.67 $802,020 301,223 Direct -1.95% Disposed -71.7% (price as of 2026-08-20)
July 17, 2025 RBLX S 10b5-1 6,000 $118.51 $711,060 307,223 Direct -1.92% Disposed -68.1% (price as of 2026-08-20)
July 3, 2025 RBLX S 10b5-1 6,000 $102.58 $615,480 313,223 Direct -1.88% Disposed -63.1% (price as of 2026-08-20)
June 20, 2025 RBLX S 10b5-1 6,000 $103.35 $620,100 319,223 Direct -1.84% Disposed -63.4% (price as of 2026-08-20)
June 5, 2025 RBLX S 10b5-1 6,000 $91.69 $550,140 325,223 Direct -1.81% Disposed -58.7% (price as of 2026-08-20)
May 20, 2025 RBLX S 13,928 $80.61 $1,122,736 332,316 Direct -4.02% Disposed -53.0% (price as of 2026-08-20)
May 20, 2025 RBLX S 1,093 $81.23 $88,784 331,223 Direct -0.33% Disposed -53.4% (price as of 2026-08-20)
May 15, 2025 RBLX S 10b5-1 6,000 $79.94 $479,640 346,244 Direct -1.70% Disposed -52.6% (price as of 2026-08-20)
May 5, 2025 RBLX S 10b5-1 11,425 $71.80 $820,315 352,819 Direct -3.14% Disposed -47.3% (price as of 2026-08-20)
May 5, 2025 RBLX S 10b5-1 575 $72.46 $41,664 352,244 Direct -0.16% Disposed -47.8% (price as of 2026-08-20)
April 3, 2025 RBLX S 10b5-1 6,000 $57.99 $347,940 364,244 Direct -1.62% Disposed -34.7% (price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
March 1, 2026 RBLX Performance Stock Unit Class A Common Stock — — 92,194 Acquired
Feb. 9, 2026 RBLX Performance Stock Unit Class A Common Stock (97,522) — — 97,522 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 5 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
March 26, 2025 RBLX Class A Common Stock 370,244 Direct
March 26, 2025 RBLX Stock Option (Right to Buy)→ Class A Common Stock (41,334) 41,334 Direct
March 26, 2025 RBLX Performance Stock Unit→ Class A Common Stock — Direct
March 26, 2025 RBLX Performance Stock Unit→ Class A Common Stock — Direct
March 26, 2025 RBLX Performance Stock Unit→ Class A Common Stock — Direct