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NAMS

NewAmsterdam Pharma Co N.V.CIK 1936258 ☆ Sign in to watchCongress trades
Open-mkt buys · 90d
$453.0K
2 trades · 1 insiders
Open-mkt sales · 90d
$8.07M
5 trades · 2 insiders
Net · 90d
$-7.61M
Insiders on file
21

AI insights for NAMS PRO

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AI insights for NAMS
Insider sentiment score with a plain-English explanation, conviction score on every buy, and how the stock performed 30 and 90 days after past insider buys.
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Daily buy vs sell · 90 days

$6.73M2026-08-24 buys — 2026-08-24 sales $6.73M08-242026-09-04 buys — 2026-09-04 sales $81.0K09-042026-09-14 buys $453.0K 2026-09-14 sales —09-142026-09-30 buys — 2026-09-30 sales $1.26M09-30
■ Open-market buys (P)   ■ Open-market sales (S) · daily dollar value by transaction date

Insiders

InsiderRoleTradesBoughtSoldLast trade
Kastelein Johannes Jacob PieterChief Scientific Officer, Director39$0$25.45M2026-09-30
Davidson Michael H.Chief Executive Officer, Director32$620.6K$25.33M2026-09-14
Smither John WDirector7$0$81.0K2026-09-04
Gunning Robert WilliamVice President, Controller4$0$02026-09-01
Kooij Louise FrederikaChief Accounting Officer66$0$25.05M2026-07-20
LANGE LOUIS GDirector20$95.0K$2.19M2026-03-11
Somaiya Mayur IanChief Financial Officer23$0$3.43M2026-01-21
van der Kamp Hilde JohannaDirector5$0$02026-01-07
McKenna Mark C.Director5$0$02026-01-07
Gulfo Adele M.Director4$0$02026-01-07
Lewis WilliamDirector5$0$02026-01-07
Topper James NDirector9$586.2K$02025-09-15
Kling Douglas FChief Operating Officer53$0$4.03M2025-07-16
Marino Michael F IIISee Remarks2$0$02025-06-01
Audet Juliette BerangereSee Remarks5$17.3K$02025-05-01
JONES WILLIAM A JRChief Commercial Officer2$0$02025-01-07
ForGrowth NAP B.V.10% Owner6$0$5.88M2024-12-30
Forbion Capital Fund IV Cooperatief U.A.10% Owner4$0$2.22M2024-12-27
Forbion IV Management B.V.10% Owner10$0$10.19M2024-12-24
Bain Capital Life Sciences Investors, LLC10% Owner1$40.00M$02024-12-13
Forbion Growth Management B.V.10% Owner5$0$11.74M2024-12-11

Trade history

InsiderRoleCodeTradeFiledSharesPriceValueOwned after
Kastelein Johannes Jacob PieteChief Scientific Officer, Di M Exercise deriv2026-09-302026-10-0250,246— $0344,983SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer, Di S Sale2026-09-302026-10-0250,246$25.03 $1.26M69,302SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer, Di M Exercise2026-09-302026-10-0250,246— —119,548SEC↗
Davidson Michael H.Chief Executive Officer P Buy2026-09-142026-09-1510,000$22.65 $226.5K792,923SEC↗
Davidson Michael H.Chief Executive Officer, Dir P Buy2026-09-142026-09-1510,000$22.65 $226.5K792,923SEC↗
Smither John WDirector S Sale2026-09-042026-09-091,600$25.32 $40.5K8,760SEC↗
Smither John WDirector S Sale2026-09-042026-09-091,600$25.32 $40.5K8,760SEC↗
Gunning Robert WilliamVice President, Controller A Award deriv2026-09-012026-09-0314,000— $014,000SEC↗
Gunning Robert WilliamVice President, Controller A Award2026-09-012026-09-033,200— $03,200SEC↗
Gunning Robert WilliamVice President, Controller A Award deriv2026-09-012026-09-0314,000— $014,000SEC↗
Gunning Robert WilliamVice President, Controller A Award2026-09-012026-09-033,200— $03,200SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise deriv2026-08-242026-08-25125,000— $0395,229SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise2026-08-242026-08-25125,000— $0194,302SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2026-08-242026-08-25125,000$26.91 $3.36M69,302SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer, Di M Exercise deriv2026-08-242026-08-25125,000— $0395,229SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer, Di S Sale2026-08-242026-08-25125,000$26.91 $3.36M69,302SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer, Di M Exercise2026-08-242026-08-25125,000— —194,302SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-07-202026-07-2225,000— $010,000SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-07-202026-07-2280,000— $070,494SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-07-202026-07-2225,000$11.90 $297.5K49,353SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-07-202026-07-2280,000$11.17 $893.6K129,353SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-07-202026-07-2270,200$29.96 $2.10M59,153SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-07-202026-07-2231,885$31.05 $990.0K27,268SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-07-202026-07-222,915$31.71 $92.4K24,353SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-06-222026-06-2425,000— $043,134SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-06-222026-06-2415,000— $035,000SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-06-222026-06-2439,700$30.20 $1.20M24,653SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-06-222026-06-2425,000$10.90 $272.5K49,353SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-06-222026-06-2415,000$11.90 $178.5K64,353SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-06-222026-06-24300$30.73 $9.2K24,353SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-05-262026-05-2760,000— $080,015SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-05-262026-05-275,000— $068,134SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-05-262026-05-2760,000$10.00 $600.0K84,353SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-05-262026-05-2765,000$35.69 $2.32M24,353SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-05-262026-05-275,000$10.90 $54.5K89,353SEC↗
LANGE LOUIS GDirector S Sale2026-03-112026-03-1244,173$30.41 $1.34M10,806SEC↗
LANGE LOUIS GDirector S Sale2026-03-112026-03-12446$31.23 $13.9K10,360SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise deriv2026-03-092026-03-09101,409— $0520,229SEC↗
LANGE LOUIS GDirector X Exercise deriv2026-03-092026-03-1044,619— $00SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise2026-03-092026-03-09101,409— $0170,711SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2026-03-092026-03-09101,409$30.29 $3.07M69,302SEC↗
LANGE LOUIS GDirector X Exercise2026-03-092026-03-1044,619$11.50 $513.1K54,979SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise deriv2026-03-062026-03-0994,124— $0621,638SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2026-03-062026-03-0994,124$30.32 $2.85M69,302SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise2026-03-062026-03-0994,124— $0163,426SEC↗
LANGE LOUIS GDirector S Sale2026-03-062026-03-1028,186$29.41 $829.0K0SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise deriv2026-03-052026-03-09104,467— $0715,762SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2026-03-052026-03-09104,467$30.30 $3.17M69,302SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise2026-03-052026-03-09104,467— $0173,769SEC↗
Davidson Michael H.Chief Executive Officer M Exercise deriv2026-03-022026-03-02443,707— $0239,267SEC↗
Davidson Michael H.Chief Executive Officer M Exercise2026-03-022026-03-02443,707— $0617,851SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-03-022026-03-02443,707$33.25 $14.75M174,144SEC↗
Davidson Michael H.Chief Executive Officer M Exercise deriv2026-02-262026-02-26183,332— $0682,974SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-02-262026-02-2617,924$34.44 $617.3K174,144SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-02-262026-02-26165,408$33.63 $5.56M477,783SEC↗
Davidson Michael H.Chief Executive Officer M Exercise2026-02-262026-02-26183,332— $0643,191SEC↗
Davidson Michael H.Chief Executive Officer M Exercise deriv2026-02-252026-02-2658,253— $0866,306SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-02-252026-02-261,300$36.68 $47.7K459,859SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-02-252026-02-2610,436$35.96 $375.3K461,159SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-02-252026-02-2646,517$35.11 $1.63M471,595SEC↗
Davidson Michael H.Chief Executive Officer M Exercise2026-02-252026-02-2658,253— $0518,112SEC↗
Davidson Michael H.Chief Executive Officer M Exercise deriv2026-02-242026-02-2664,708— $0924,559SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-02-242026-02-263,161$36.46 $115.3K459,859SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-02-242026-02-2661,547$36.13 $2.22M463,020SEC↗
Davidson Michael H.Chief Executive Officer M Exercise2026-02-242026-02-2664,708— $0524,567SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2026-02-202026-02-2414,692$35.00 $514.2K84,289SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2026-02-202026-02-2430,789$35.46 $1.09M53,500SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-01-282026-01-2932,612— $073,134SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-01-282026-01-2932,612$31.80 $1.04M24,353SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-01-282026-01-2932,612$10.90 $355.5K56,965SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-01-272026-01-2939,816— $0105,746SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-01-272026-01-2939,816$10.90 $434.0K64,169SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-01-272026-01-2939,816$32.62 $1.30M24,353SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-01-262026-01-2734,400— $0145,562SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-01-262026-01-27309$33.45 $10.3K24,353SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-01-262026-01-2734,091$32.77 $1.12M24,662SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-01-262026-01-2734,400$10.90 $375.0K58,753SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2026-01-232026-01-2738,172— $0179,962SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-01-232026-01-2712,767$34.37 $438.8K24,353SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-01-232026-01-2725,405$33.44 $849.5K37,120SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2026-01-232026-01-2738,172$10.90 $416.1K62,525SEC↗
Somaiya Mayur IanChief Financial Officer M Exercise deriv2026-01-212026-01-2239,784— $0662,814SEC↗
Somaiya Mayur IanChief Financial Officer M Exercise2026-01-212026-01-2239,784$9.26 $368.4K98,166SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2026-01-212026-01-2215,422$33.25 $512.8K82,744SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2026-01-212026-01-2224,362$33.80 $823.4K58,382SEC↗
Somaiya Mayur IanChief Financial Officer M Exercise deriv2026-01-202026-01-2260,216— $0702,598SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2026-01-202026-01-22900$30.64 $27.6K117,698SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2026-01-202026-01-2239,712$31.78 $1.26M77,986SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2026-01-202026-01-2219,604$32.38 $634.8K58,382SEC↗
Somaiya Mayur IanChief Financial Officer M Exercise2026-01-202026-01-2260,216$9.26 $557.6K118,598SEC↗
Somaiya Mayur IanChief Financial Officer A Award deriv2026-01-072026-01-07115,000— $0115,000SEC↗
Kooij Louise FrederikaChief Accounting Officer A Award deriv2026-01-072026-01-0753,500— $053,500SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer A Award deriv2026-01-072026-01-07115,000— $0115,000SEC↗
LANGE LOUIS GDirector A Award deriv2026-01-072026-01-0915,300— $015,300SEC↗
McKenna Mark C.Director A Award deriv2026-01-072026-01-0915,300— $015,300SEC↗
Smither John WDirector A Award deriv2026-01-072026-01-0915,300— $015,300SEC↗
Lewis WilliamDirector A Award deriv2026-01-072026-01-0915,300— $015,300SEC↗
Davidson Michael H.Chief Executive Officer A Award deriv2026-01-072026-01-09364,000— $0364,000SEC↗
Gulfo Adele M.Director A Award deriv2026-01-072026-01-0915,300— $015,300SEC↗
van der Kamp Hilde JohannaDirector A Award deriv2026-01-072026-01-0915,300— $015,300SEC↗
Somaiya Mayur IanChief Financial Officer A Award2026-01-072026-01-0725,500— $058,382SEC↗
Kooij Louise FrederikaChief Accounting Officer A Award2026-01-072026-01-0712,000— $024,353SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer A Award2026-01-072026-01-0725,500— $098,981SEC↗
LANGE LOUIS GDirector A Award2026-01-072026-01-093,400— $010,360SEC↗
McKenna Mark C.Director A Award2026-01-072026-01-093,400— $010,360SEC↗
Smither John WDirector A Award2026-01-072026-01-093,400— $010,360SEC↗
Lewis WilliamDirector A Award2026-01-072026-01-093,400— $010,360SEC↗
Davidson Michael H.Chief Executive Officer S Sale2026-01-072026-01-0911,582— $0378,859SEC↗
Davidson Michael H.Chief Executive Officer A Award2026-01-072026-01-0981,000— $0459,859SEC↗
Gulfo Adele M.Director A Award2026-01-072026-01-093,400— $014,260SEC↗
van der Kamp Hilde JohannaDirector A Award2026-01-072026-01-093,400— $010,360SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2026-01-052026-01-075,118$33.25 $170.2K32,882SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2026-01-052026-01-072,647$33.25 $88.0K12,353SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2026-01-052026-01-076,000$33.25 $199.5K73,481SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2025-12-262025-12-2938,872— $0140,015SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2025-12-262025-12-295,000— $0218,134SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2025-12-262025-12-2943,872$35.30 $1.55M15,000SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2025-12-262025-12-295,000$10.90 $54.5K58,872SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2025-12-262025-12-2938,872$10.00 $388.7K53,872SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2025-12-242025-12-2926,011— $0178,887SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2025-12-242025-12-2926,011$10.00 $260.1K41,011SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2025-12-242025-12-2926,011$35.68 $928.1K15,000SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2025-12-232025-12-2975,117— $0204,898SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2025-12-232025-12-2975,117$10.00 $751.2K90,117SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2025-12-232025-12-2975,117$36.21 $2.72M15,000SEC↗
Topper James NDirector P Buy2025-09-152025-09-17660$23.70 $15.6K3,028,524SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2025-09-092025-09-10150,000— $0280,015SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2025-09-092025-09-1053,104$25.31 $1.34M111,896SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2025-09-092025-09-10150,000$10.00 $1.50M165,000SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2025-09-092025-09-1096,896$26.11 $2.53M15,000SEC↗
Topper James NDirector P Buy2025-09-082025-09-101,260$24.99 $31.5K3,027,864SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2025-09-032025-09-0518,073$25.09 $453.5K15,000SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2025-09-022025-09-0418,073— $00SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2025-09-022025-09-0418,073— $033,073SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2025-08-252025-08-278,269$24.86 $205.6K15,000SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2025-08-222025-08-2542,342$25.08 $1.06M76,960SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2025-08-222025-08-257,658$25.49 $195.2K69,302SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2025-08-212025-08-2550,000$24.29 $1.21M119,302SEC↗
Topper James NDirector P Buy2025-08-112025-08-13471$23.98 $11.3K3,026,604SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-07-162025-07-1751,043— $0162,702SEC↗
Kling Douglas FChief Operating Officer S Sale2025-07-162025-07-1751,043$21.10 $1.08M44,000SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-07-162025-07-1751,043$10.90 $556.4K95,043SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-07-152025-07-1747,569— $0213,745SEC↗
Kling Douglas FChief Operating Officer S Sale2025-07-152025-07-173,544$22.12 $78.4K44,000SEC↗
Kling Douglas FChief Operating Officer S Sale2025-07-152025-07-1744,025$21.38 $941.3K47,544SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-07-152025-07-1747,569$10.90 $518.5K91,569SEC↗
Topper James NDirector P Buy2025-06-252025-06-261,260$18.26 $23.0K3,026,133SEC↗
Topper James NDirector P Buy2025-06-242025-06-262,520$18.43 $46.4K3,024,873SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-06-162025-06-1878,101— $0372,829SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-06-162025-06-1821,899— $0261,314SEC↗
Topper James NDirector P Buy2025-06-162025-06-188,584$19.50 $167.4K3,022,153SEC↗
Kling Douglas FChief Operating Officer S Sale2025-06-162025-06-1881,891$19.19 $1.57M62,109SEC↗
Kling Douglas FChief Operating Officer S Sale2025-06-162025-06-1818,109$19.75 $357.7K44,000SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-06-162025-06-1878,101$10.00 $781.0K122,101SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-06-162025-06-1821,899$10.90 $238.7K144,000SEC↗
LANGE LOUIS GDirector M Exercise deriv2025-06-012025-06-0368— $00SEC↗
Marino Michael F IIISee Remarks A Award deriv2025-06-012025-06-03315,000— $0315,000SEC↗
LANGE LOUIS GDirector M Exercise2025-06-012025-06-0368— $028,186SEC↗
Marino Michael F IIISee Remarks A Award2025-06-012025-06-0355,000— $055,000SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-05-152025-05-19100,000— $0450,930SEC↗
Kling Douglas FChief Operating Officer S Sale2025-05-152025-05-19100,000— $044,000SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-05-152025-05-19100,000$10.00 $1.00M144,000SEC↗
LANGE LOUIS GDirector M Exercise deriv2025-05-012025-05-0269— $068SEC↗
Audet Juliette BerangereSee Remarks A Award deriv2025-05-012025-05-0230,000— $030,000SEC↗
LANGE LOUIS GDirector M Exercise2025-05-012025-05-0269— $028,118SEC↗
Gulfo Adele M.Director A Award deriv2025-04-152025-04-1750,700— $050,700SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-04-152025-04-17100,000— $0550,930SEC↗
Gulfo Adele M.Director A Award2025-04-152025-04-1710,860— $010,860SEC↗
Kling Douglas FChief Operating Officer S Sale2025-04-152025-04-17910— $044,000SEC↗
Kling Douglas FChief Operating Officer S Sale2025-04-152025-04-1799,090— $044,910SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-04-152025-04-17100,000$10.00 $1.00M144,000SEC↗
LANGE LOUIS GDirector M Exercise deriv2025-04-142025-04-2169— $0137SEC↗
LANGE LOUIS GDirector M Exercise2025-04-142025-04-2169— $028,049SEC↗
Davidson Michael H.Chief Executive Officer A Award deriv2025-03-262025-03-2838,394— $038,394SEC↗
Davidson Michael H.Chief Executive Officer M Exercise deriv2025-03-262025-03-2838,394— $00SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-03-262025-03-2816,539— $00SEC↗
Kling Douglas FChief Operating Officer A Award deriv2025-03-262025-03-2816,539— $016,539SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise deriv2025-03-262025-03-2845,481— $00SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer A Award deriv2025-03-262025-03-2845,481— $045,481SEC↗
LANGE LOUIS GDirector M Exercise deriv2025-03-262025-03-283,102— $0206SEC↗
LANGE LOUIS GDirector A Award deriv2025-03-262025-03-283,308— $03,308SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2025-03-262025-03-288,269— $00SEC↗
Kooij Louise FrederikaChief Accounting Officer A Award deriv2025-03-262025-03-288,269— $08,269SEC↗
Davidson Michael H.Chief Executive Officer A Award2025-03-262025-03-2830,992— $0364,305SEC↗
Davidson Michael H.Chief Executive Officer S Sale2025-03-262025-03-2812,258— $0390,441SEC↗
Davidson Michael H.Chief Executive Officer M Exercise2025-03-262025-03-2838,394— $0402,699SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-03-262025-03-2816,539— $060,539SEC↗
Kling Douglas FChief Operating Officer S Sale2025-03-262025-03-2816,539— $044,000SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer A Award2025-03-262025-03-2819,302— $0169,302SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise2025-03-262025-03-2845,481— $079,481SEC↗
LANGE LOUIS GDirector M Exercise2025-03-262025-03-283,102— $010,062SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2025-03-262025-03-288,269— $023,269SEC↗
Topper James NDirector P Buy2025-03-262025-03-281,135$22.49 $25.5K3,013,569SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise deriv2025-03-242025-03-26150,000— $0820,229SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise2025-03-242025-03-26150,000— $0150,000SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-03-172025-03-1911,888— $0650,930SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-03-172025-03-1988,112— $047,251SEC↗
Kling Douglas FChief Operating Officer S Sale2025-03-172025-03-19100,000— $044,000SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-03-172025-03-1988,112— $0132,112SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-03-172025-03-1911,888$10.00 $118.9K144,000SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2025-03-042025-03-05150,000— $018,073SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2025-03-042025-03-05150,000$20.37 $3.06M15,000SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2025-03-042025-03-05150,000— $0165,000SEC↗
Topper James NDirector P Buy2025-03-042025-03-064,005$21.02 $84.2K3,012,434SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-02-192025-02-209,218— $0126,145SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-02-192025-02-209,218— $053,218SEC↗
Kling Douglas FChief Operating Officer S Sale2025-02-192025-02-209,218— $044,000SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-02-182025-02-2090,782— $0135,363SEC↗
Kling Douglas FChief Operating Officer S Sale2025-02-182025-02-2090,782— $044,000SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-02-182025-02-2090,782— $0134,782SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-01-302025-01-3113,578— $0226,145SEC↗
Kling Douglas FChief Operating Officer S Sale2025-01-302025-01-318,914— $044,000SEC↗
Kling Douglas FChief Operating Officer S Sale2025-01-302025-01-314,664— $052,914SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-01-302025-01-3113,578— $057,578SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-01-292025-01-3156,863— $0239,723SEC↗
Kling Douglas FChief Operating Officer S Sale2025-01-292025-01-3156,863— $044,000SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-01-292025-01-3156,863— $0100,863SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-01-282025-01-2925,385— $0296,586SEC↗
Somaiya Mayur IanChief Financial Officer M Exercise deriv2025-01-282025-01-2914,900— $0762,814SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-01-282025-01-2925,385— $069,385SEC↗
Kling Douglas FChief Operating Officer S Sale2025-01-282025-01-2920,237— $049,148SEC↗
Kling Douglas FChief Operating Officer S Sale2025-01-282025-01-295,148— $044,000SEC↗
Somaiya Mayur IanChief Financial Officer M Exercise2025-01-282025-01-2914,900$9.26 $138.0K52,900SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2025-01-282025-01-2911,495— $041,405SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2025-01-282025-01-293,405— $038,000SEC↗
Kling Douglas FChief Operating Officer M Exercise deriv2025-01-272025-01-29104,174— $0321,971SEC↗
Somaiya Mayur IanChief Financial Officer M Exercise deriv2025-01-272025-01-2946,983— $0777,714SEC↗
Kling Douglas FChief Operating Officer M Exercise2025-01-272025-01-29104,174— $0148,174SEC↗
Kling Douglas FChief Operating Officer S Sale2025-01-272025-01-2980,359— $067,815SEC↗
Kling Douglas FChief Operating Officer S Sale2025-01-272025-01-2923,815— $044,000SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2025-01-272025-01-2933,679— $051,304SEC↗
Somaiya Mayur IanChief Financial Officer M Exercise2025-01-272025-01-2946,983$9.26 $435.1K84,983SEC↗
Somaiya Mayur IanChief Financial Officer S Sale2025-01-272025-01-2913,304— $038,000SEC↗
Somaiya Mayur IanChief Financial Officer A Award2025-01-072025-01-0738,000— $038,000SEC↗
Kling Douglas FChief Operating Officer A Award2025-01-072025-01-0744,000— $044,000SEC↗
JONES WILLIAM A JRChief Commercial Officer A Award2025-01-072025-01-0743,000— $043,000SEC↗
Audet Juliette BerangereChief Business Officer A Award2025-01-072025-01-0714,000— $015,104SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer A Award2025-01-072025-01-0734,000— $034,000SEC↗
Davidson Michael H.Chief Executive Officer A Award2025-01-072025-01-07123,529— $0123,529SEC↗
Kooij Louise FrederikaChief Accounting Officer A Award2025-01-072025-01-0715,000— $015,000SEC↗
LANGE LOUIS GDirector A Award2025-01-072025-01-086,960— $06,960SEC↗
van der Kamp Hilde JohannaDirector A Award2025-01-072025-01-086,960— $06,960SEC↗
Lewis WilliamDirector A Award2025-01-072025-01-086,960— $06,960SEC↗
McKenna Mark C.Director A Award2025-01-072025-01-086,960— $06,960SEC↗
Smither John WDirector A Award2025-01-072025-01-086,960— $06,960SEC↗
Davidson Michael H.Chief Executive Officer A Award deriv2025-01-062025-01-07670,467— $0670,467SEC↗
LANGE LOUIS GDirector A Award deriv2025-01-062025-01-0832,500— $032,500SEC↗
van der Kamp Hilde JohannaDirector A Award deriv2025-01-062025-01-0832,500— $032,500SEC↗
Lewis WilliamDirector A Award deriv2025-01-062025-01-0832,500— $032,500SEC↗
McKenna Mark C.Director A Award deriv2025-01-062025-01-0832,500— $032,500SEC↗
Smither John WDirector A Award deriv2025-01-062025-01-0832,500— $032,500SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer A Award deriv2025-01-022025-01-06200,000— $0200,000SEC↗
JONES WILLIAM A JRChief Commercial Officer A Award deriv2025-01-022025-01-06200,000— $0200,000SEC↗
Somaiya Mayur IanChief Financial Officer A Award deriv2025-01-022025-01-06220,000— $0220,000SEC↗
Audet Juliette BerangereChief Business Officer A Award deriv2025-01-022025-01-06100,000— $0100,000SEC↗
Kooij Louise FrederikaChief Accounting Officer A Award deriv2025-01-022025-01-0680,000— $080,000SEC↗
Kling Douglas FChief Operating Officer A Award deriv2025-01-022025-01-06250,000— $0250,000SEC↗
ForGrowth NAP B.V.10% Owner S Sale2024-12-302025-01-0229,846$25.54 $762.3K10,656,172SEC↗
Forbion Capital Fund IV Cooper10% Owner S Sale2024-12-272024-12-3041,472$25.95 $1.08M10,686,018SEC↗
Forbion Capital Fund IV Cooper10% Owner S Sale2024-12-262024-12-3033,438$26.01 $869.7K10,727,490SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-242024-12-2616,164$25.66 $414.8K10,760,928SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-232024-12-2625,132$25.49 $640.6K10,777,092SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-202024-12-265,629$26.13 $147.1K10,802,224SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-202024-12-2644,143$25.53 $1.13M10,807,853SEC↗
ForGrowth NAP B.V.10% Owner S Sale2024-12-192024-12-2056,506$25.45 $1.44M10,851,996SEC↗
ForGrowth NAP B.V.10% Owner S Sale2024-12-182024-12-2046,210$26.55 $1.23M10,908,502SEC↗
ForGrowth NAP B.V.10% Owner S Sale2024-12-182024-12-2054,518$25.72 $1.40M10,954,712SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-172024-12-1847,736$26.45 $1.26M11,009,230SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-172024-12-1866,648$25.60 $1.71M11,056,966SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-162024-12-181,096$25.00 $27.4K11,123,614SEC↗
Bain Capital Life Sciences Inv10% Owner P Buy deriv2024-12-132024-12-171,632,653$24.50 $40.00M1,632,653SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-132024-12-1625,751$25.01 $644.0K11,124,710SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-122024-12-16140,048$25.25 $3.54M11,176,424SEC↗
Forbion IV Management B.V.10% Owner S Sale2024-12-122024-12-1625,963$26.18 $679.7K11,150,461SEC↗
Forbion Growth Management B.V.10% Owner S Sale2024-12-112024-12-124,894$27.11 $132.7K11,316,472SEC↗
Forbion Growth Management B.V.10% Owner S Sale2024-12-112024-12-1218,583$26.41 $490.8K11,321,366SEC↗
Forbion Growth Management B.V.10% Owner S Sale2024-12-112024-12-12130,561$25.26 $3.30M11,339,949SEC↗
Forbion Growth Management B.V.10% Owner S Sale2024-12-102024-12-12259,739$25.22 $6.55M11,519,021SEC↗
Forbion Growth Management B.V.10% Owner S Sale2024-12-102024-12-1248,511$26.15 $1.27M11,470,510SEC↗
ForGrowth NAP B.V.10% Owner S Sale2024-11-182024-11-1933,273$25.08 $834.5K11,778,760SEC↗
ForGrowth NAP B.V.10% Owner S Sale2024-11-152024-11-198,530$25.02 $213.4K11,812,033SEC↗
Forbion Capital Fund IV Cooper10% Owner S Sale2024-11-142024-11-159,832$25.01 $245.9K11,820,563SEC↗
Forbion Capital Fund IV Cooper10% Owner S Sale2024-11-132024-11-151,066$25.00 $26.6K11,830,395SEC↗
Davidson Michael H.Chief Executive Officer G Gift deriv2024-10-092024-10-1115,000$11.50 $172.5K85,000SEC↗
Kooij Louise FrederikaChief Accounting Officer S Sale2024-10-012024-10-0145,000$15.72 $707.4K0SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise deriv2024-09-272024-10-0145,000— $0168,073SEC↗
Kooij Louise FrederikaChief Accounting Officer M Exercise2024-09-272024-10-0145,000— $045,000SEC↗
Audet Juliette BerangereChief Business Officer P Buy2024-09-262024-09-301,104$15.70 $17.3K1,104SEC↗
Davidson Michael H.Chief Executive Officer P Buy2024-08-202024-08-225,000$16.27 $81.3K209,784SEC↗
McKenna Mark C.Director A Award deriv2024-07-172024-07-1972,500— $072,500SEC↗
Davidson Michael H.Chief Executive Officer P Buy2024-06-202024-06-245,000$17.26 $86.3K204,784SEC↗
Audet Juliette BerangereChief Business Officer A Award deriv2024-04-012024-04-02250,000— $0250,000SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise deriv2024-03-262024-03-27201,673— $0970,229SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer M Exercise2024-03-262024-03-27201,673— $0201,673SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer F Tax w/h2024-03-262024-03-2711,197$22.72 $254.4K190,476SEC↗
Kastelein Johannes Jacob PieteChief Scientific Officer S Sale2024-03-262024-03-27190,476$21.50 $4.10M0SEC↗
Topper James NDirector P Buy2024-03-262024-03-288,429$21.50 $181.2K3,008,429SEC↗
LANGE LOUIS GDirector P Buy2024-02-132024-02-215,000$19.00 $95.0K24,878SEC↗
Lewis WilliamDirector A Award deriv2024-01-042024-01-08100,000— $0100,000SEC↗
Somaiya Mayur IanChief Financial Officer A Award deriv2024-01-012024-01-0380,000— $080,000SEC↗