Insider at

04

Insider transactions

05
0 buys (P) 12 sells (S) Net: $-7,014,218 + 51 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

51 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 13, 2025 RGEN S 1,956 $157.11 $307,307 80,743 Direct -2.37% Disposed 15.7% (price as of 2026-10-02)
Nov. 13, 2025 RGEN S 5,737 $156.22 $896,234 82,699 Direct -6.49% Disposed 16.3% (price as of 2026-10-02)
Nov. 13, 2025 RGEN S 3,000 $155.45 $466,350 88,436 Direct -3.28% Disposed 16.9% (price as of 2026-10-02)
Nov. 13, 2025 RGEN S 2,500 $154.32 $385,800 91,436 Direct -2.66% Disposed 17.7% (price as of 2026-10-02)
Nov. 13, 2025 RGEN S 2,923 $153.14 $447,628 93,936 Direct -3.02% Disposed 18.6% (price as of 2026-10-02)
Nov. 13, 2025 RGEN S 2,100 $152.17 $319,557 96,859 Direct -2.12% Disposed 19.4% (price as of 2026-10-02)
Nov. 13, 2025 RGEN S 1,784 $151.01 $269,402 98,959 Direct -1.77% Disposed 20.3% (price as of 2026-10-02)
Nov. 12, 2025 RGEN S 464 $158.51 $73,549 100,743 Direct -0.46% Disposed 14.6% (price as of 2026-10-02)
Nov. 12, 2025 RGEN S 11,096 $158.01 $1,753,279 101,207 Direct -9.88% Disposed 15.0% (price as of 2026-10-02)
Nov. 12, 2025 RGEN S 4,959 $156.65 $776,827 112,303 Direct -4.23% Disposed 16.0% (price as of 2026-10-02)
Nov. 12, 2025 RGEN S 4,740 $155.85 $738,729 117,262 Direct -3.89% Disposed 16.6% (price as of 2026-10-02)
Nov. 12, 2025 RGEN S 3,741 $154.92 $579,556 122,002 Direct -2.98% Disposed 17.3% (price as of 2026-10-02)
Sept. 10, 2025 RGEN S 2,179 $122.23 $266,339 100,743 Direct -2.12% Disposed 48.7% (price as of 2026-10-02)
Sept. 10, 2025 RGEN S 7,584 $121.42 $920,849 102,922 Direct -6.86% Disposed 49.6% (price as of 2026-10-02)
Sept. 10, 2025 RGEN S 14,882 $120.19 $1,788,668 110,506 Direct -11.87% Disposed 51.2% (price as of 2026-10-02)
Sept. 10, 2025 RGEN S 3,262 $119.64 $390,266 125,388 Direct -2.54% Disposed 51.9% (price as of 2026-10-02)
Sept. 10, 2025 RGEN S 1,108 $118.32 $131,099 128,650 Direct -0.85% Disposed 53.6% (price as of 2026-10-02)
Sept. 10, 2025 RGEN S 96 $116.34 $11,169 129,758 Direct -0.07% Disposed 56.2% (price as of 2026-10-02)
May 15, 2025 RGEN S 7 $127.00 $889 109,854 Direct -0.01% Disposed 43.1% (price as of 2026-10-02)
May 15, 2025 RGEN S 268 $125.20 $33,554 109,861 Direct -0.24% Disposed 45.1% (price as of 2026-10-02)
May 15, 2025 RGEN S 6,533 $124.34 $812,313 110,129 Direct -5.60% Disposed 46.1% (price as of 2026-10-02)
May 15, 2025 RGEN S 17,596 $123.57 $2,174,338 116,662 Direct -13.11% Disposed 47.0% (price as of 2026-10-02)
May 15, 2025 RGEN S 2,043 $122.66 $250,594 134,258 Direct -1.50% Disposed 48.1% (price as of 2026-10-02)
March 17, 2025 RGEN S 15,619 $152.82 $2,386,896 138,584 Direct -10.13% Disposed 18.9% (price as of 2026-10-02)
March 17, 2025 RGEN S 6,176 $151.96 $938,505 154,203 Direct -3.85% Disposed 19.6% (price as of 2026-10-02)
March 17, 2025 RGEN S 2,518 $151.09 $380,445 160,379 Direct -1.55% Disposed 20.3% (price as of 2026-10-02)
March 17, 2025 RGEN S 100 $150.38 $15,038 162,897 Direct -0.06% Disposed 20.8% (price as of 2026-10-02)
March 17, 2025 RGEN S 60 $148.05 $8,883 162,997 Direct -0.04% Disposed 22.7% (price as of 2026-10-02)
March 17, 2025 RGEN S 2,283 $153.70 $350,897 136,301 Direct -1.65% Disposed 18.2% (price as of 2026-10-02)
Nov. 21, 2024 RGEN S 24,246 $139.67 $3,386,439 139,840 Direct -14.78% Disposed 30.1% (price as of 2026-10-02)
Sept. 10, 2024 RGEN S 9,369 $144.88 $1,357,381 151,167 Direct -5.84% Disposed 25.4% (price as of 2026-10-02)
Sept. 10, 2024 RGEN S 10,723 $145.95 $1,565,022 140,444 Direct -7.09% Disposed 24.5% (price as of 2026-10-02)
Sept. 10, 2024 RGEN S 604 $146.67 $88,589 139,840 Direct -0.43% Disposed 23.9% (price as of 2026-10-02)
Sept. 10, 2024 RGEN S 1,495 $143.77 $214,936 160,536 Direct -0.92% Disposed 26.4% (price as of 2026-10-02)
June 14, 2024 RGEN P 2,000 $124.08 $248,160 165,177 Direct +1.23% Acquired 46.4% (price as of 2026-10-02)
May 21, 2024 RGEN S 969 $171.03 $165,728 163,177 Direct -0.59% Disposed 6.2% (price as of 2026-10-02)
May 21, 2024 RGEN S 3,925 $170.04 $667,407 164,146 Direct -2.34% Disposed 6.9% (price as of 2026-10-02)
May 21, 2024 RGEN S 2,963 $169.27 $501,547 168,071 Direct -1.73% Disposed 7.3% (price as of 2026-10-02)
May 21, 2024 RGEN S 3,933 $168.33 $662,042 171,034 Direct -2.25% Disposed 7.9% (price as of 2026-10-02)
May 21, 2024 RGEN S 4,008 $167.05 $669,536 174,967 Direct -2.24% Disposed 8.8% (price as of 2026-10-02)
May 21, 2024 RGEN S 4,274 $166.36 $711,023 178,975 Direct -2.33% Disposed 9.2% (price as of 2026-10-02)
March 8, 2024 RGEN S 156 $202.55 $31,598 185,249 Direct -0.08% Disposed -10.3% (price as of 2026-10-02)
March 8, 2024 RGEN S 806 $201.75 $162,610 185,405 Direct -0.43% Disposed -9.9% (price as of 2026-10-02)
March 8, 2024 RGEN S 1,305 $200.56 $261,731 186,211 Direct -0.70% Disposed -9.4% (price as of 2026-10-02)
March 8, 2024 RGEN S 1,822 $199.53 $363,544 187,516 Direct -0.96% Disposed -8.9% (price as of 2026-10-02)
March 8, 2024 RGEN S 1,347 $198.55 $267,447 189,338 Direct -0.71% Disposed -8.5% (price as of 2026-10-02)
March 8, 2024 RGEN S 1,666 $197.39 $328,852 190,685 Direct -0.87% Disposed -7.9% (price as of 2026-10-02)
March 8, 2024 RGEN S 6,228 $196.32 $1,222,681 192,351 Direct -3.14% Disposed -7.4% (price as of 2026-10-02)
March 8, 2024 RGEN S 3,377 $195.49 $660,170 198,579 Direct -1.67% Disposed -7.1% (price as of 2026-10-02)

Showing latest 100 of 268 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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
June 11, 2026 MASS Stock Option (option to buy) Common Stock (6,209) $8.22 June 10, 2036 6,209 Acquired
June 11, 2026 MASS Restricted Stock Units Common Stock (13,656) · · 13,656 Acquired
June 10, 2026 MASS Restricted Stock Units Common Stock (14,083) · · 14,083 Disposed
Nov. 13, 2025 RGEN Stock Option (Right to Buy) Common Stock (2,952) $33.87 Feb. 29, 2028 2,952 Acquired
Nov. 12, 2025 RGEN Stock Option (Right to Buy) Common Stock (25,000) $33.87 March 1, 2028 25,000 Disposed
Sept. 10, 2025 RGEN Stock Option (Right to Buy) Common Stock (20,000) $33.87 March 1, 2028 20,000 Disposed
June 12, 2025 MASS Restricted Stock Units Common Stock (14,083) · · 14,083 Acquired
June 12, 2025 MASS Stock Option (option to buy) Common Stock (6,516) $7.19 June 11, 2035 6,516 Acquired
June 11, 2025 MASS Restricted Stock Units Common Stock (11,364) · · 11,364 Disposed
March 17, 2025 RGEN Stock Option (Right to Buy) Common Stock (5,000) $33.87 March 1, 2028 5,000 Disposed
March 17, 2025 RGEN Stock Option (Right to Buy) Common Stock (21,756) $59.52 Feb. 28, 2029 21,756 Disposed
March 2, 2025 MASS Restricted Stock Units Common Stock (2,058) · · 2,058 Disposed
Dec. 5, 2024 RGEN Stock Option (Right to Buy) Common Stock (11,808) $33.87 Feb. 29, 2028 11,808 Acquired
Nov. 21, 2024 RGEN Stock Option (Right to Buy) Common Stock (24,246) $33.87 Feb. 29, 2028 24,246 Acquired
Sept. 10, 2024 RGEN Stock Option (Right to Buy) Common Stock (10,000) $33.87 Feb. 29, 2028 10,000 Acquired
Sept. 3, 2024 RGEN Stock Option (Right to Buy) Common Stock (13,057) $192.71 Feb. 27, 2034 13,057 Disposed
June 13, 2024 MASS Restricted Stock Unit Common Stock (11,364) · · 11,364 Acquired
June 13, 2024 MASS Stock Option (option to buy) Common Stock (15,996) $5.94 June 15, 2033 15,996 Acquired
June 12, 2024 MASS Restricted Stock Unit Common Stock (7,777) · · 7,777 Disposed
March 8, 2024 RGEN Stock Option (Right to Buy) Common Stock (1) $16.55 May 5, 2024 1 Acquired
March 4, 2024 MASS Restricted Stock Unit Common Stock, par value $0.001 (4,115) · · 2,057 Disposed
Feb. 27, 2024 RGEN Stock Option (Right to Buy) Common Stock (19,585) $192.71 Feb. 27, 2034 19,585 Acquired
June 15, 2023 MASS Restricted Stock Units Common Stock (7,777) · · 7,777 Acquired
June 15, 2023 MASS Stock Option (option to buy) Common Stock (12,076) $8.68 June 15, 2033 12,076 Acquired
June 14, 2023 MASS Restricted Stock Units Common Stock (4,771) · · 4,771 Disposed
March 2, 2023 MASS Restricted Stock Unit Common Stock, par value $0.001 (6,173) · · 2,058 Disposed
March 2, 2023 RGEN Stock Option (Right to Buy) Common Stock (20,080) $180.48 March 2, 2033 20,080 Acquired
Nov. 11, 2022 RGEN Stock Option (Right to Buy) Common Stock (25,000) $33.87 Feb. 29, 2028 25,000 Acquired
Sept. 8, 2022 RGEN Stock Option (Right to Buy) Common Stock (10,000) $33.87 Feb. 29, 2028 10,000 Acquired
July 21, 2022 RGEN Stock Option (Right to Buy) Common Stock (15,154) $32.40 Feb. 23, 2027 15,154 Acquired
July 21, 2022 RGEN Stock Option (Right to Buy) Common Stock (5,000) $33.87 Feb. 29, 2028 5,000 Acquired
June 16, 2022 MASS Restricted Stock Unit Common Stock, par value $0.001 (4,771) · · 4,771 Acquired
June 16, 2022 MASS Stock Option (option to buy) Common Stock, par value $0.001 (7,970) $14.15 June 16, 2032 7,970 Acquired
March 2, 2022 MASS Stock Option (option to buy) Common Stock, par value $0.001 (6,173) $16.20 March 2, 2032 6,173 Acquired
March 2, 2022 MASS Restricted Stock Unit Common Stock, par value $0.001 (10,362) · · 10,362 Acquired
Feb. 24, 2022 RGEN Stock Option (Right to Buy) Common Stock (20,307) $189.21 Feb. 24, 2032 20,307 Acquired
Nov. 18, 2021 RGEN Stock Option (Right to Buy) Common Stock (10,000) $32.40 Feb. 23, 2027 10,000 Acquired
Sept. 9, 2021 RGEN Stock Option (Right to Buy) Common Stock (25,000) $32.40 Feb. 23, 2027 25,000 Acquired
Feb. 24, 2021 RGEN Stock Option (Right to Buy) Common Stock (12,601) $215.58 Feb. 24, 2031 12,601 Disposed
Nov. 19, 2020 RGEN Stock Option (Right to Buy) Common Stock (20,000) $26.05 Feb. 26, 2026 20,000 Disposed
Sept. 10, 2020 RGEN Stock Option (Right to Buy) Common Stock (45,351) $26.05 Feb. 26, 2026 45,351 Disposed
May 21, 2020 RGEN Stock Option (Right to Buy) Common Stock (3,086) $32.40 Feb. 23, 2027 3,086 Disposed
May 21, 2020 RGEN Stock Option (Right to Buy) Common Stock (39,037) $24.98 Feb. 26, 2025 39,037 Disposed
May 21, 2020 RGEN Stock Option (Right to Buy) Common Stock (7,916) $16.55 May 5, 2024 7,916 Disposed
Feb. 27, 2020 RGEN Stock Option (Right to Buy) Common Stock (18,128) $86.10 Feb. 27, 2030 18,128 Disposed
Feb. 25, 2020 RGEN Stock Option (Right to Buy) Common Stock (10,210) $16.55 May 5, 2024 10,210 Disposed
Feb. 25, 2020 RGEN Stock Option (Right to Buy) Common Stock (11,735) $32.40 Feb. 23, 2027 11,735 Disposed
Sept. 19, 2019 RGEN Stock Option (Right to Buy) Common Stock (20,000) $16.55 May 5, 2024 20,000 Disposed
Feb. 28, 2019 RGEN Stock Option (Right to Buy) Common Stock (21,756) $59.52 Feb. 28, 2019 21,756 Acquired
Feb. 28, 2019 RGEN Stock Option (Right to Buy) Common Stock (21,651) $59.52 Feb. 28, 2029 21,651 Acquired
Sept. 10, 2018 RGEN Stock Option (Right to Buy) Common Stock (11,873) $16.55 May 5, 2024 11,873 Disposed
March 1, 2018 RGEN Stock Option (Right to Buy) Common Stock (285,563) $33.87 March 1, 2028 285,563 Acquired
March 1, 2018 RGEN Stock Option (Right to Buy) Common Stock (74,246) $33.87 March 1, 2028 74,246 Acquired
Feb. 23, 2017 RGEN Stock Option (Right to Buy) Common Stock (64,975) $32.40 Feb. 23, 2027 64,975 Acquired
Feb. 23, 2017 RGEN Stock Option (Right to Buy) Common Stock (64,975) $32.32 Feb. 23, 2027 64,975 Acquired
Feb. 26, 2016 RGEN Stock Option (Right to Buy) Common Stock (65,351) $26.05 Feb. 26, 2026 65,351 Acquired
Feb. 26, 2015 RGEN Stock Option (Right to Buy) Common Stock (39,037) $24.98 Feb. 26, 2025 39,037 Acquired
May 5, 2014 RGEN Stock Option (Right to Buy) Common Stock (50,000) $16.55 May 5, 2024 50,000 Acquired

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

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2021 $761,000 · · · $1,335,555 · $5,000 $7,765,070
2020 $725,000 · · · $378,750 · $5,000 $5,066,061
2019 $685,000 · · · $832,275 · $5,000 $4,424,560

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.