Meister, Keith A.

CIK 1307631 · View on SEC EDGAR ↗

Insider Activist

First SEC filing: May 22, 2026 · Latest: June 1, 2026

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Insider at

Insider transactions

0 buys (P) 42 sells (S) Net: $-312,991,266 + 50 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

50 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 5, 2026 ILMN S 52,249 $198.18 $10,354,707 2,320,445 Indirect -2.20% Disposed 6.4% (price as of 2026-08-20)
Aug. 5, 2026 ILMN S 68,047 $198.97 $13,539,312 2,252,398 Indirect -2.93% Disposed 6.0% (price as of 2026-08-20)
Aug. 5, 2026 ILMN S 118,753 $199.87 $23,735,162 2,133,645 Indirect -5.27% Disposed 5.5% (price as of 2026-08-20)
Aug. 5, 2026 ILMN S 30,398 $201.37 $6,121,245 2,103,247 Indirect -1.42% Disposed 4.7% (price as of 2026-08-20)
Aug. 5, 2026 ILMN S 11,372 $201.80 $2,294,870 2,091,875 Indirect -0.54% Disposed 4.5% (price as of 2026-08-20)
Aug. 5, 2026 ILMN S 2,450 $203.28 $498,036 2,089,425 Indirect -0.12% Disposed 3.7% (price as of 2026-08-20)
Aug. 4, 2026 ILMN S 7,202 $196.74 $1,416,921 2,823,350 Indirect -0.25% Disposed 7.2% (price as of 2026-08-20)
Aug. 4, 2026 ILMN S 27,854 $197.48 $5,500,608 2,795,496 Indirect -0.99% Disposed 6.8% (price as of 2026-08-20)
Aug. 4, 2026 ILMN S 166,501 $198.24 $33,007,158 2,628,995 Indirect -5.96% Disposed 6.3% (price as of 2026-08-20)
Aug. 4, 2026 ILMN S 35,160 $199.51 $7,014,772 2,593,835 Indirect -1.34% Disposed 5.7% (price as of 2026-08-20)
Aug. 4, 2026 ILMN S 37,242 $200.65 $7,472,607 2,556,593 Indirect -1.44% Disposed 5.1% (price as of 2026-08-20)
Aug. 4, 2026 ILMN S 67,725 $201.44 $13,642,524 2,488,868 Indirect -2.65% Disposed 4.7% (price as of 2026-08-20)
Aug. 4, 2026 ILMN S 48,186 $202.43 $9,754,292 2,440,682 Indirect -1.94% Disposed 4.1% (price as of 2026-08-20)
Aug. 4, 2026 ILMN S 67,988 $203.09 $13,807,683 2,372,694 Indirect -2.79% Disposed 3.8% (price as of 2026-08-20)
June 1, 2026 ILMN S 15,472 $165.50 $2,560,616 2,830,452 Indirect -0.54% Disposed 27.4% (price as of 2026-08-20)
June 1, 2026 ILMN S 87,653 $164.34 $14,404,894 2,845,924 Indirect -2.99% Disposed 28.3% (price as of 2026-08-20)
June 1, 2026 ILMN S 61,613 $163.56 $10,077,422 2,933,577 Indirect -2.06% Disposed 28.9% (price as of 2026-08-20)
June 1, 2026 ILMN S 70,262 $162.41 $11,411,251 2,995,190 Indirect -2.29% Disposed 29.8% (price as of 2026-08-20)
May 29, 2026 ILMN S 1,961 $165.30 $324,153 3,065,452 Indirect -0.06% Disposed 27.5% (price as of 2026-08-20)
May 29, 2026 ILMN S 92,877 $164.56 $15,283,839 3,067,413 Indirect -2.94% Disposed 28.1% (price as of 2026-08-20)
May 29, 2026 ILMN S 6,198 $163.97 $1,016,286 3,160,290 Indirect -0.20% Disposed 28.6% (price as of 2026-08-20)
May 29, 2026 ILMN S 63,020 $162.86 $10,263,437 3,166,488 Indirect -1.95% Disposed 29.5% (price as of 2026-08-20)
May 29, 2026 ILMN S 6,888 $164.75 $1,134,798 3,229,508 Indirect -0.21% Disposed 28.0% (price as of 2026-08-20)
May 29, 2026 ILMN S 19,832 $163.57 $3,243,920 3,236,396 Indirect -0.61% Disposed 28.9% (price as of 2026-08-20)
May 29, 2026 ILMN S 2,225 $162.44 $361,429 3,256,228 Indirect -0.07% Disposed 29.8% (price as of 2026-08-20)
May 29, 2026 ILMN S 5,256 $161.64 $849,580 3,258,453 Indirect -0.16% Disposed 30.4% (price as of 2026-08-20)
May 29, 2026 ILMN S 4,579 $160.50 $734,930 3,263,709 Indirect -0.14% Disposed 31.4% (price as of 2026-08-20)
May 29, 2026 ILMN S 11,760 $159.57 $1,876,543 3,268,288 Indirect -0.36% Disposed 32.1% (price as of 2026-08-20)
May 28, 2026 ILMN S 110,424 $147.50 $16,287,540 3,280,048 Indirect -3.26% Disposed 42.9% (price as of 2026-08-20)
May 28, 2026 ILMN S 71,986 $157.38 $11,329,157 3,390,472 Indirect -2.08% Disposed 34.0% (price as of 2026-08-20)
May 28, 2026 ILMN S 37,590 $156.50 $5,882,835 3,462,458 Indirect -1.07% Disposed 34.7% (price as of 2026-08-20)
May 14, 2026 ILMN S 180 $147.80 $26,604 3,500,048 Indirect -0.01% Disposed 42.6% (price as of 2026-08-20)
May 14, 2026 ILMN S 13,776 $146.96 $2,024,521 3,500,228 Indirect -0.39% Disposed 43.5% (price as of 2026-08-20)
May 14, 2026 ILMN S 25,352 $146.15 $3,705,195 3,514,004 Indirect -0.72% Disposed 44.3% (price as of 2026-08-20)
May 14, 2026 ILMN S 52,776 $144.80 $7,641,965 3,539,356 Indirect -1.47% Disposed 45.6% (price as of 2026-08-20)
May 14, 2026 ILMN S 12,309 $144.13 $1,774,096 3,592,132 Indirect -0.34% Disposed 46.3% (price as of 2026-08-20)
May 13, 2026 ILMN S 5,310 $148.14 $786,623 3,604,441 Indirect -0.15% Disposed 42.3% (price as of 2026-08-20)
May 13, 2026 ILMN S 6,524 $147.50 $962,290 3,609,751 Indirect -0.18% Disposed 42.9% (price as of 2026-08-20)
May 13, 2026 ILMN S 53,610 $145.94 $7,823,843 3,616,275 Indirect -1.46% Disposed 44.5% (price as of 2026-08-20)
May 13, 2026 ILMN S 159,623 $145.26 $23,186,837 3,669,885 Indirect -4.17% Disposed 45.1% (price as of 2026-08-20)
March 9, 2026 MGM S 37,500 $34.27 $1,285,125 5,347,978 Indirect -0.70% Disposed 25.0% (price as of 2026-08-20)
Sept. 11, 2025 MGM S 242,000 $35.42 $8,571,640 5,385,478 Indirect -4.30% Disposed 20.9% (price as of 2026-08-20)
June 13, 2025 MGM S 366 $32.50 $11,895 5,627,478 Indirect -0.01% Disposed 31.8% (price as of 2026-08-20)
June 13, 2025 MGM S 59,634 $32.09 $1,913,655 5,627,844 Indirect -1.05% Disposed 33.5% (price as of 2026-08-20)
Dec. 13, 2024 MGM S 51,000 $36.57 $1,865,070 5,687,478 Indirect -0.89% Disposed 17.1% (price as of 2026-08-20)
Sept. 13, 2024 MGM S 4,321 $37.29 $161,130 5,738,478 Indirect -0.08% Disposed 14.9% (price as of 2026-08-20)
Sept. 13, 2024 MGM S 116,679 $36.70 $4,282,119 5,742,799 Indirect -1.99% Disposed 16.7% (price as of 2026-08-20)
June 13, 2024 MGM S 139,300 $40.44 $5,633,292 5,859,478 Indirect -2.32% Disposed 5.9% (price as of 2026-08-20)
March 13, 2024 MGM S 100,000 $42.98 $4,298,000 5,998,778 Indirect -1.64% Disposed -0.3% (price as of 2026-08-20)
March 12, 2024 MGM S 325,000 $42.90 $13,942,500 6,098,778 Indirect -5.06% Disposed -0.1% (price as of 2026-08-20)

Showing latest 100 of 213 transactions

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
June 30, 2026 MGM Deferred Stock Units Common Stock $.01 Par Value ND (837) — — 837 Acquired
June 18, 2026 WGS Restricted Stock Unit Class A Common Stock (3,576) — — 3,576 Disposed
June 18, 2026 WGS Restricted Stock Unit Class A Common Stock (4,248) — — 4,248 Acquired
May 28, 2026 ILMN Equity Swap (right to buy) Common Stock (24,562) $102.82 Feb. 11, 2028 24,562 Disposed
May 12, 2026 ILMN Equity Swap (right to buy) Common Stock (255,378) $102.82 Feb. 11, 2028 255,378 Disposed
May 11, 2026 ILMN Equity Swap (right to buy) Common Stock (79,568) $102.82 Feb. 11, 2028 79,568 Disposed
May 7, 2026 ILMN Equity Swap (right to buy) Common Stock (9,236) $102.82 Feb. 11, 2028 9,236 Disposed
May 7, 2026 MGM Restricted Stock Units Common Stock $.01 Par Value ND (6,298) — — 6,298 Acquired
May 6, 2026 MGM Deferred Stock Units Common Stock $.01 Par Value ND (6,675) — — 6,675 Acquired
May 6, 2026 MGM Restricted Stock Units Common Stock $.01 Par Value ND (6,675) — — 6,675 Disposed
March 31, 2026 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,081) — — 1,081 Acquired
Dec. 31, 2025 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,096) — — 1,096 Acquired
Sept. 30, 2025 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,154) — — 1,154 Acquired
June 30, 2025 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,163) — — 1,163 Acquired
May 8, 2025 MGM Restricted Stock Units Common Stock $.01 Par Value ND (6,675) — — 6,675 Acquired
May 2, 2025 MGM Deferred Stock Units Common Stock $.01 Par Value ND (5,261) — — 5,261 Acquired
May 2, 2025 MGM Restricted Stock Units Common Stock $.01 Par Value ND (5,261) — — 5,261 Disposed
March 31, 2025 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,350) — — 1,350 Acquired
Dec. 31, 2024 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,154) — — 1,154 Acquired
Sept. 30, 2024 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,023) — — 1,023 Acquired
June 30, 2024 MGM Deferred Stock Units Common Stock $.01 Par Value ND (900) — — 900 Acquired
June 26, 2024 WGS Restricted Stock Unit Class A Common Stock (12,924) — — 12,924 Acquired
June 20, 2024 WGS Restricted Stock Unit Class A Common Stock (5,828) — — 5,828 Disposed
May 2, 2024 MGM Restricted Stock Units Common Stock $.01 Par Value ND (5,261) — — 5,261 Acquired
May 1, 2024 MGM Deferred Stock Units Common Stock $.01 Par Value ND (4,344) — — 4,344 Acquired
May 1, 2024 MGM Restricted Stock Units Common Stock $.01 Par Value ND (4,344) — — 4,344 Disposed
March 31, 2024 MGM Deferred Stock Units Common Stock $.01 Par Value ND (794) — — 794 Acquired
Dec. 31, 2023 MGM Deferred Stock Units Common Stock $.01 Par Value ND (839) — — 839 Acquired
Sept. 30, 2023 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,020) — — 1,020 Acquired
July 21, 2023 WGS Restricted Stock Unit Class A Common Stock (5,828) — — 5,828 Acquired
July 21, 2023 WGS Stock Option (Right to Buy) Class A Common Stock (8,816) $7.89 July 20, 2033 8,816 Acquired
June 30, 2023 MGM Deferred Stock Units Common Stock $.01 Par Value ND (854) — — 854 Acquired
May 3, 2023 MGM Restricted Stock Units Common Stock $.01 Par Value ND (4,344) — — 4,344 Acquired
May 2, 2023 MGM Deferred Stock Units Common Stock $.01 Par Value ND (4,454) — — 4,454 Acquired
May 2, 2023 MGM Restricted Stock Units Common Stock $.01 Par Value ND (4,454) — — 4,454 Disposed
May 2, 2023 WGS Restricted Stock Unit Class A Common Stock (45,454) — — 45,454 Disposed
March 31, 2023 MGM Deferred Stock Units Common Stock $.01 Par Value ND (732) — — 732 Acquired
Dec. 31, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (969) — — 969 Acquired
Dec. 15, 2022 MGM Restricted Stock Units Common Stock $.01 Par Value ND (0) — — 0 Acquired
Dec. 15, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2) — — 2 Acquired
Dec. 1, 2022 WGS Total Return Swaps [F4,F5] Common Stock (6,789,360) — — 6,789,360 Acquired
Sept. 30, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,094) — — 1,094 Acquired
Sept. 15, 2022 MGM Restricted Stock Units Common Stock $.01 Par Value ND (0) — — 0 Acquired
Sept. 15, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2) — — 2 Acquired
June 30, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,123) — — 1,123 Acquired
June 15, 2022 MGM Restricted Stock Units Common Stock $.01 Par Value ND (0) — — 0 Acquired
June 15, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (3) — — 3 Acquired
May 5, 2022 MGM Restricted Stock Units Common Stock $.01 Par Value ND (4,453) — — 4,453 Acquired
May 4, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (4,499) — — 4,499 Acquired
May 4, 2022 MGM Restricted Stock Units Common Stock $.01 Par Value ND (4,499) — — 4,499 Disposed
May 2, 2022 WGS Stock Option Class A Common Stock (78,914) — May 1, 2032 78,914 Acquired
May 2, 2022 WGS Restricted Stock Unit Class A Common Stock (45,454) — — 45,454 Acquired
May 2, 2022 WGS Stock Option (Right to Buy) Class A Common Stock (78,914) $2.15 May 1, 2032 78,914 Acquired
March 31, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (775) — — 775 Acquired
March 15, 2022 MGM Restricted Stock Units Common Stock $.01 Par Value ND (0) — — 0 Acquired
March 15, 2022 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2) — — 2 Acquired
Dec. 31, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (72) — — 72 Acquired
Dec. 15, 2021 MGM Restricted Stock Units Common Stock $.01 Par Value ND (0) — — 0 Acquired
Dec. 15, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2) — — 2 Acquired
Sept. 30, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (75) — — 75 Acquired
Sept. 15, 2021 MGM Restricted Stock Units Common Stock $.01 Par Value ND (0) — — 0 Acquired
Sept. 15, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2) — — 2 Acquired
June 30, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (76) — — 76 Acquired
June 15, 2021 MGM Restricted Stock Units Common Stock $.01 Par Value ND (0) — — 0 Acquired
June 15, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2) — — 2 Acquired
May 6, 2021 MGM Restricted Stock Units Common Stock $.01 Par Value ND (4,498) — — 4,498 Acquired
May 5, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (10,051) — — 10,051 Acquired
May 5, 2021 MGM Restricted Stock Units Common Stock $.01 Par Value ND (10,051) — May 5, 2021 10,051 Disposed
March 31, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (59) — — 59 Acquired
March 15, 2021 MGM Restricted Stock Units Common Stock $.01 Par Value ND (1) — — 1 Acquired
March 15, 2021 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1) — — 1 Acquired
Dec. 31, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (714) — — 714 Acquired
Dec. 15, 2020 MGM Restricted Stock Units Common Stock $.01 Par Value ND (1) — — 1 Acquired
Dec. 15, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1) — — 1 Acquired
Sept. 30, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,034) — — 1,034 Acquired
Sept. 15, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2) — — 2 Acquired
Sept. 15, 2020 MGM Restricted Stock Units Common Stock $.01 Par Value ND (1) — — 1 Acquired
June 30, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,339) — — 1,339 Acquired
June 15, 2020 MGM Restricted Stock Units Common Stock $.01 Par Value ND (1) — — 1 Acquired
June 15, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2) — — 2 Acquired
May 7, 2020 MGM Restricted Stock Units Common Stock $.01 Par Value ND (10,040) — — 10,040 Acquired
May 2, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (6,006) — — 6,006 Acquired
May 2, 2020 MGM Restricted Stock Units Common Stock $.01 Par Value ND (6,006) — — 6,006 Disposed
March 31, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (1,907) — — 1,907 Acquired
March 16, 2020 MGM Restricted Stock Units Common Stock $.01 Par Value ND (87) — — 87 Acquired
March 16, 2020 MGM Deferred Stock Units Common Stock $.01 Par Value ND (86) — — 86 Acquired
Dec. 31, 2019 MGM Deferred Stock Units Common Stock $.01 Par Value ND (676) — — 676 Acquired
Dec. 16, 2019 MGM Restricted Stock Units Common Stock $.01 Par Value ND (23) — — 23 Acquired
Dec. 16, 2019 MGM Deferred Stock Units Common Stock $.01 Par Value ND (20) — — 20 Acquired
Sept. 30, 2019 MGM Deferred Stock Units Common Stock $.01 Par Value ND (812) — — 812 Acquired
Sept. 16, 2019 MGM Restricted Stock Units Common Stock $.01 Par Value ND (26) — — 26 Acquired
Sept. 16, 2019 MGM Deferred Stock Units Common Stock $.01 Par Value ND (19) — — 19 Acquired
June 30, 2019 MGM Deferred Stock Units Common Stock $.01 Par Value ND (788) — — 788 Acquired
June 14, 2019 MGM Restricted Stock Units Common Stock (27) — — 27 Acquired
June 14, 2019 MGM Deferred Stock Units Common Stock (17) — — 17 Acquired
May 2, 2019 MGM Restricted Stock Units Common Stock $.01 Par Value ND (5,843) — — 5,843 Acquired
May 1, 2019 MGM Deferred Stock Units Common Stock $.01 Par Value ND (2,639) — — 2,639 Acquired
May 1, 2019 MGM Restricted Stock Units Common Stock $.01 Par Value ND (2,639) — — 2,639 Disposed
March 31, 2019 MGM Deferred Stock Units Common Stock $.01 Par Value ND (877) — — 877 Acquired
March 15, 2019 MGM Restricted Stock Units Common Stock $.01 Par Value ND (13) — — 13 Acquired

Showing latest 100 of 106 transactions

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

Initial ownership (Form 3) 7 holdings

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

Date Ticker Security Shares Ownership
April 1, 2025 ILMN Common Stock 3,829,508 Indirect
April 1, 2025 ILMN Equity Swap (right to buy)→ Common Stock (368,744) 368,744 Indirect
Jan. 25, 2022 WGS Class A Common Stock 15,493,750 Indirect
Jan. 25, 2022 WGS Warrants to purchase Class A Common Stock→ Class A Common Stock (6,736,669) 6,736,669 Indirect
Jan. 23, 2019 MGM Common Stock 15,692,772 Indirect
Oct. 20, 2015 YUM Common Stock 21,040,195 Indirect
Nov. 19, 2014 WMB Common Stock 41,682,960 Indirect