Belgium Biotechnology & Medical Research

Galapagos NV (GLPG)

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Over the past 90 days, Galapagos NV recorded three insider transactions, all of which were open-market purchases totaling approximately 471,625 EUR. These acquisitions were made by two insiders shortly after the company's May 2026 earnings report. No insider sales were reported during this period, and the stock has seen an 11.7% price increase over the last quarter.

Active buying signal · Strong

Top insider buys (90d)

Top cluster buys (90d)

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Active buying signal · Strong

Top insider buys

Top cluster buys

Ticker: GLPG Exchange: AEX

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings

Insider activity signal detected

12 activity signals detected for Galapagos NV

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Insider trades have triggered activity signals for Galapagos NV. Upgrade to see score, net flow, insiders and the full signal context.

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Company data & Insiders

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Trades

Gosebruch Henry

1 purchase — total 76,158 EUR

Buy 11 May 2026

Value €4,161,802.15 | Price 141.43 | Shares 85,193

Gosebruch Henry

1 purchase — total 159,076 EUR

Buy 8 May 2026

Value €500,191.42 | Price 423.46 | Shares 30,425

Cox Aaron

1 purchase — total 236,390 EUR

Buy 7 May 2026

Value €236,390.49 | Price 23.64 | Shares 10,000

Griffiths Jane

1 purchase — total 10,899 EUR

Buy 22 Jan 2026

Value €10,899.44 | Price 28.84 | Shares 378

Svoronos Dawn

1 purchase — total 10,785 EUR

Buy 22 Jan 2026

Value €10,785.00 | Price 28.76 | Shares 375

Johnston Neil

1 purchase — total 3,950 EUR

Buy 22 Jan 2026

Value €3,950.33 | Price 28.84 | Shares 137

Contamine Jérôme

1 purchase — total 44,953 EUR

Buy 22 Jan 2026

Value €44,952.99 | Price 28.84 | Shares 1,559

Oleg Nodelman

2 purchases — total 3,188,046 USD

Buy 28 Jul 2025

Value US$210,727.12 | Price 33.26 | Shares 6,336

Through EcoR1 Capital Fund, L.P., a closely affiliated person

Buy 28 Jul 2025

Value US$2,977,318.82 | Price 33.26 | Shares 89,520

Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person

Oleg Nodelman

2 purchases — total 4,402,059 USD

Buy 25 Jul 2025

Value US$4,111,076.12 | Price 32.36 | Shares 127,041

Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person

Buy 25 Jul 2025

Value US$290,982.88 | Price 32.36 | Shares 8,992

Through EcoR1 Capital Fund, L.P., a closely affiliated person

Oleg Nodelman

2 purchases — total 7,664,484 USD

Buy 24 Jul 2025

Value US$506,612.80 | Price 30.43 | Shares 16,651

Through EcoR1 Capital Fund, L.P., a closely affiliated person

Buy 24 Jul 2025

Value US$7,157,870.81 | Price 30.43 | Shares 235,260

Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person

Oleg Nodelman

2 purchases — total 2,318,734 USD

Buy 18 Jun 2025

Value US$145,141.98 | Price 28.30 | Shares 5,129

Through EcoR1 Capital Fund, L.P., a closely affiliated person

Buy 18 Jun 2025

Value US$2,173,592.42 | Price 28.30 | Shares 76,810

Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person

Oleg Nodelman

2 purchases — total 1,977,518 USD

Buy 17 Jun 2025

Value US$123,784.38 | Price 28.08 | Shares 4,409

Through EcoR1 Capital Fund, L.P., a closely affiliated person

Buy 17 Jun 2025

Value US$1,853,733.98 | Price 28.08 | Shares 66,027

Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person

Oleg Nodelman

2 purchases — total 2,510,256 USD

Buy 16 Jun 2025

Value US$157,153.62 | Price 28.98 | Shares 5,422

Through EcoR1 Capital Fund, L.P., a closely affiliated person

Buy 16 Jun 2025

Value US$2,353,102.24 | Price 28.98 | Shares 81,185

Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person

Oleg Nodelman

1 purchase — total 43,679 EUR

Buy 13 Jun 2025

Value €43,679.49 | Price 24.89 | Shares 1,755

Through EcoR1 Capital Fund, L.P., a closely affiliated person

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value
2026-05-12	2026-05-11	B Purchase	3.2 Gosebruch Henry Management or Supervisory Board Member	85,193 141.43 €4,161,802	85,193	141.43	€4,161,802
2026-05-12	2026-05-08	B Purchase	3.2 Gosebruch Henry Management or Supervisory Board Member	30,425 423.46 €500,191	30,425	423.46	€500,191
2026-05-11	2026-05-07	B Purchase	Cox Aaron Management or Supervisory Board Member	50,619 161.82 €2,385,262	50,619	161.82	€2,385,262
2026-01-26	2026-01-22	B Purchase	3.2 Griffiths Jane Management or Supervisory Board Member	378 28.84 €10,899	378	28.84	€10,899
2026-01-26	2026-01-22	B Purchase	3.4 Svoronos Dawn Management or Supervisory Board Member	375 28.76 €10,785	375	28.76	€10,785
2026-01-26	2026-01-22	B Purchase	2.6 Johnston Neil Management or Supervisory Board Member	137 28.84 €3,950	137	28.84	€3,950
2026-01-26	2026-01-22	B Purchase	3.2 Contamine Jérôme Management or Supervisory Board Member	1,559 28.84 €44,953	1,559	28.84	€44,953
2025-07-31	2025-07-28	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund, L.P., a closely affiliated person Management or Supervisory Board Member	6,336 33.26 US$210,727	6,336	33.26	US$210,727
2025-07-31	2025-07-28	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person Management or Supervisory Board Member	89,520 33.26 US$2,977,319	89,520	33.26	US$2,977,319
2025-07-30	2025-07-25	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person Management or Supervisory Board Member	127,041 32.36 US$4,111,076	127,041	32.36	US$4,111,076
2025-07-30	2025-07-25	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund, L.P., a closely affiliated person Management or Supervisory Board Member	8,992 32.36 US$290,983	8,992	32.36	US$290,983
2025-07-25	2025-07-24	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund, L.P., a closely affiliated person Management or Supervisory Board Member	16,651 30.43 US$506,613	16,651	30.43	US$506,613
2025-07-25	2025-07-24	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person Management or Supervisory Board Member	235,260 30.43 US$7,157,871	235,260	30.43	US$7,157,871
2025-06-20	2025-06-18	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund, L.P., a closely affiliated person Management or Supervisory Board Member	5,129 28.30 US$145,142	5,129	28.30	US$145,142
2025-06-19	2025-06-18	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person Management or Supervisory Board Member	76,810 28.30 US$2,173,592	76,810	28.30	US$2,173,592
2025-06-19	2025-06-17	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund, L.P., a closely affiliated person Management or Supervisory Board Member	4,409 28.08 US$123,784	4,409	28.08	US$123,784
2025-06-19	2025-06-17	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person Management or Supervisory Board Member	66,027 28.08 US$1,853,734	66,027	28.08	US$1,853,734
2025-06-19	2025-06-16	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund, L.P., a closely affiliated person Management or Supervisory Board Member	5,422 28.98 US$157,154	5,422	28.98	US$157,154
2025-06-19	2025-06-16	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund Qualified, L.P., a closely affiliated person Management or Supervisory Board Member	81,185 28.98 US$2,353,102	81,185	28.98	US$2,353,102
2025-06-19	2025-06-13	B Purchase	3.7 Oleg Nodelman Through EcoR1 Capital Fund, L.P., a closely affiliated person Management or Supervisory Board Member	1,755 24.89 €43,679	1,755	24.89	€43,679