MREO · Insider Trading

Mereo BioPharma Group plc American Depositary Shares

Every open-market purchase and sale reported by MREO officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
10
code S
Reporting Insiders
8
current holders
MREO — Recent Form 4 Transactions (latest 2026-02-27)
FiledInsiderRole TypeSharesValue
2026-02-27 Annalisa Jenkins Director A +172,848 deriv. —
2026-02-27 Deepika Pakianathan Director A +66,000 deriv. —
2026-02-27 Daniel Shames Director A +162,163 deriv. —
2026-02-27 Anders Ekblom Director A +199,560 deriv. —
2026-02-27 Michael S Wyzga Director A +66,000 deriv. —
2026-02-27 Pierre Jacquet Director A +172,848 deriv. —
2026-02-27 Jeremy Bender Director A +183,533 deriv. —
2026-02-27 Marc J Yoskowitz Director A +162,163 deriv. —
2026-02-02 Christine Ann Fox Chief Financial Officer A +701,000 deriv. —
2026-02-02 Charles Sermon General Counsel A +716,000 deriv. —
2026-02-02 Alexandra Hughes-Wilson See Remarks A +440,000 deriv. —
2026-02-02 John A. Lewicki Chief Scientific Officer A +331,550 deriv. —
2026-02-02 Denise Scots-Knight Chief Executive Officer A +1,860,000 deriv. —
2025-02-06 Deepika Pakianathan Director A +55,000 deriv. —
2025-02-06 Anders Ekblom Director A +74,054 deriv. —
2025-02-06 Pierre Jacquet Director A +70,243 deriv. —
2025-02-06 Michael S Wyzga Director A +85,487 deriv. —
2025-02-06 Marc J Yoskowitz Director A +68,719 deriv. —
2025-02-06 Daniel Shames Director A +68,719 deriv. —
2025-02-06 Jeremy Bender Director A +71,768 deriv. —
2025-02-06 Annalisa Jenkins Director A +70,243 deriv. —
2025-01-28 Alexandra Hughes-Wilson See Remarks A +154,000 deriv. —
2025-01-28 Christine Ann Fox Chief Financial Officer A +262,000 deriv. —
2025-01-28 Denise Scots-Knight Chief Executive Officer A +825,000 deriv. —
2025-01-28 Charles Sermon General Counsel A +262,000 deriv. —
2025-01-28 John A. Lewicki Chief Scientific Officer A +116,000 deriv. —
2024-09-16 Denise Scots-Knight Chief Executive Officer Sell −88,657 −$381.42K
2024-09-16 John A. Lewicki Chief Scientific Officer Sell −16,149 −$69.48K
2024-09-16 Christine Ann Fox Chief Financial Officer Sell −28,286 −$121.69K
2024-09-16 Charles Sermon General Counsel Sell −30,926 −$133.05K
2024-09-16 Alexandra Hughes-Wilson See Remarks Sell −148,110 −$637.20K
2024-09-13 Christine Ann Fox Chief Financial Officer M +60,000 —
2024-09-13 Denise Scots-Knight Chief Executive Officer M +188,060 —
2024-09-13 Charles Sermon General Counsel M +65,600 —
2024-09-13 Alexandra Hughes-Wilson See Remarks M +208,333 +$206.42K
2024-09-13 John A. Lewicki Chief Scientific Officer M +46,000 —
2024-08-23 Deepika Pakianathan Director MIXED — −$315.09K
2024-06-27 Christine Ann Fox Chief Financial Officer Sell −42,429 −$147.88K
2024-06-27 Denise Scots-Knight Chief Executive Officer Sell −132,985 −$463.49K
2024-06-27 Alexandra Hughes-Wilson See Remarks Sell −33,102 −$115.37K
2024-06-27 John A. Lewicki Chief Scientific Officer Sell −24,224 −$84.43K
2024-06-27 Charles Sermon General Counsel Sell −46,389 −$161.68K
2024-06-25 Alexandra Hughes-Wilson See Remarks M +60,000 —
2024-06-25 Christine Ann Fox Chief Financial Officer M +90,000 —
2024-06-25 Charles Sermon General Counsel M +98,400 —
2024-06-25 John A. Lewicki Chief Scientific Officer M +69,000 —
2024-06-25 Denise Scots-Knight Chief Executive Officer M +282,090 —
2024-06-17 Michael S Wyzga Director A +25,050 +$99.95K
2024-06-17 Rubric Capital Management LP 10%+ Owner A +3,508,700 deriv. —
2024-06-17 Jeremy Bender Director A +12,550 +$50.07K
MREO — Current Insider Holders
InsiderRole Shares HeldValue
Denise Scots-Knight Chief Executive Officer 868,967 $238.97K
Charles Sermon General Counsel 219,061 $60.24K
Alexandra Hughes-Wilson See Remarks 134,483 $36.98K
Christine Ann Fox Chief Financial Officer 108,443 $29.82K
Deepika Pakianathan Director 105,244 $28.94K
John A. Lewicki Chief Scientific Officer 92,826 $25.53K
Michael S Wyzga Director 25,050 $6.89K
Jeremy Bender Director 12,550 $3.45K
MREO Insider Trading FAQ
Who are the insiders at MREO?
8 officers, directors and 10%+ beneficial owners currently report holdings in MREO via SEC Form 4.
Are MREO insiders buying or selling?
Across the 50 most recent Form 4 filings for MREO, 0 were open-market purchases (code P) and 10 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is MREO insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent MREO filing is dated 2026-02-27.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the MREO quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.