Member

Bartłomiej SIENKIEWICZ

EPP · Poland

Group: EPP PPE
Country: Poland
Roll-call participation: 96.7 %ⓘ of 2 891 roll calls in office · chamber median 91.2 % · 2025, roll calls
With majority line: 91.2 %ⓘ of 2 795 votes where the group had a line · EPP median 93.5 %

More facts (5)

National party: KO Koalicja Obywatelska
In office: Since 16 Jul 2024
Against clear line: 160 of 2 664 votesⓘ
Committees: AFCO, LIBE (substitute)
Member id: 86057

National party: KO Koalicja Obywatelska
In office: Since 16 Jul 2024
Against clear line: 160 of 2 664 votesⓘ
Committees: AFCO, LIBE (substitute)
Member id: 86057

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EP profile

Link to this page

Record

The member’s figures against the median of their group and of the chamber. Each vote counts the member in the group they belonged to that day.

Period Whole term 2024 (from July)2025 2026

Custom dates

Votes Final votes293 All roll calls2 891

Roll-call participation ⓘ

96.7 %

2 795 of 2 891 roll calls while in office

EPP median: 91.0 % (+5.7 pts)

Chamber median: 91.2 %

With majority line ⓘ

91.2 %

2 550 of 2 795 votes where their group had a line

EPP median: 93.5 % (−2.3 pts)

Against clear line ⓘ

6.0 %

160 of 2 664 votes where their group had a clear line

119 opposite (for ↔ against), 41 abstained against the line

Abstention ⓘ

2.4 %

66 of 2 795 votes cast

Participation 96.7 % — EPP median 91.0 %, 187 members.ⓘ

Data as a table

Participation among the 187 members of the EPP with enough votes.
Figure	Participation
Bartłomiej SIENKIEWICZ	96.7 %
EPP median	91.0 %
Lowest in the group	23.2 %
Highest in the group	99.7 %
Members	187

With majority line 91.2 % — EPP median 93.5 %, 187 members.ⓘ

Data as a table

With majority line among the 187 members of the EPP with enough votes.
Figure	With majority line
Bartłomiej SIENKIEWICZ	91.2 %
EPP median	93.5 %
Lowest in the group	66.7 %
Highest in the group	98.9 %
Members	187

2025, 2 891 roll-call votes. The dots are the other members of EPP; no ranks.
“No vote recorded” is not the same as absent: leave, illness and chairing the sitting look the same.
A group’s line is inferred from its members’ votes — Parliament publishes no whip.

Votes, 620

Export

Every final roll-call vote of the term with the member’s position, newest first.

Show Final votes All roll calls

Result: for–against–abstained. Majority line: how most of the member’s group voted that day (“Tie” when no position won). ≠ group marks a vote otherwise than a clear line (at least two thirds, with at least 10 members voting) of their group.
Date	Decision	Result	Position	Majority line
17 Sept 2026	Deteriorating situation of media freedom and freedom of expression in Hong Kong following the recent arrest of bookseller Leticia Wong and the convictions of Lee Cheuk-yan and Chow Hang-tung	Adopted 459 for, 12 against, 86 abstained	Position: Against ≠ group	Majority line: For
17 Sept 2026	Political prisoners in Cuba, in particular the case of Félix Navarro and his daughter Saylí Navarro	Adopted 374 for, 198 against, 19 abstained	Position: For	Majority line: For
17 Sept 2026	An EU health workforce crisis plan: sustainability of healthcare systems and employment and working conditions in the healthcare sector	Adopted 514 for, 61 against, 33 abstained	Position: For	Majority line: For
17 Sept 2026	Post-electoral repression in Zambia and the killing of Mutotwe Kafwaya	Adopted 562 for, 1 against, 33 abstained	Position: For	Majority line: For
17 Sept 2026	Impact of social media and the online environment on young people	Adopted 395 for, 136 against, 80 abstained	Position: For	Majority line: For
17 Sept 2026	The role of social, economic and environmental standards in safeguarding fair competition for all aquatic food products and improving food security	Adopted 467 for, 92 against, 44 abstained	Position: For	Majority line: For
17 Sept 2026	Evaluation of the Common Fisheries Policy and follow-up	Adopted 368 for, 172 against, 69 abstained	Position: For	Majority line: For
17 Sept 2026	Narco-trafficking in Europe’s waters: protecting our borders and supporting our law enforcement officers	Adopted 601 for, 4 against, 5 abstained	Position: For	Majority line: For
17 Sept 2026	The recent hybrid attacks and instrumentalisation of migrants in Ceuta and the need for a coordinated response to protect EU’s external borders	Adopted 339 for, 225 against, 16 abstained	Position: For	Majority line: For
17 Sept 2026	Strengthening global health resilience in partner countries	Adopted 319 for, 142 against, 19 abstained	Position: For	Majority line: For
16 Sept 2026	Simplification of intra-EU transfers of defence-related products and simplification of security and defence procurement (Omnibus V)	Passed 549 for, 92 against, 27 abstained	Position: No vote recorded	Majority line: For
16 Sept 2026	Acceleration of permit-granting for defence readiness projects (Omnibus V)	Passed 540 for, 105 against, 22 abstained	Position: For	Majority line: For
16 Sept 2026	Defence readiness and facilitating defence investments and conditions for the defence industry (Omnibus V)	Passed 530 for, 125 against, 12 abstained	Position: For	Majority line: For
16 Sept 2026	Establishing the Single Market and Customs Programme for the period 2028-2034	Passed 496 for, 53 against, 125 abstained	Position: For	Majority line: For
16 Sept 2026	Instrument for Nuclear Safety Cooperation 2028-2034	Passed 600 for, 21 against, 48 abstained	Position: For	Majority line: For
16 Sept 2026	Nuclear decommissioning assistance programme of the Ignalina nuclear power plant in Lithuania for the period 2028-2034	Passed 625 for, 20 against, 22 abstained	Position: For	Majority line: For
16 Sept 2026	EU-Switzerland Agreement on the transfer of passenger name record (PNR) data for the prevention, detection, investigation and prosecution of terrorist offences and serious crime	Consent given 549 for, 75 against, 30 abstained	Position: For	Majority line: For
16 Sept 2026	EU-UK Agreement regarding cooperation on the application of their respective competition laws	Consent given 640 for, 5 against, 26 abstained	Position: For	Majority line: For
16 Sept 2026	EU-Iceland Agreement on the participation of Iceland in GOVSATCOM and in the Union Secure Connectivity Programme	Consent given 631 for, 7 against, 15 abstained	Position: For	Majority line: For
16 Sept 2026	EU-Norway Agreement on the participation of Norway in GOVSATCOM and in the Union Secure Connectivity Programme	Consent given 612 for, 8 against, 16 abstained	Position: For	Majority line: For
16 Sept 2026	Genetically modified soybean GMB151 x DAS-44406-6	Objection passed 442 for, 184 against, 12 abstained	Position: Against	Majority line: Against
16 Sept 2026	Genetically modified soybean MON 94313	Objection passed 457 for, 184 against, 10 abstained	Position: Against	Majority line: Against
16 Sept 2026	Genetically modified maize MON 87460	Objection passed 433 for, 159 against, 10 abstained	Position: Against	Majority line: Against
16 Sept 2026	Hybrid warfare and the protection of the EU’s territorial integrity and critical security and defence infrastructure	Adopted 470 for, 129 against, 62 abstained	Position: For	Majority line: For
16 Sept 2026	An EU cardiovascular diseases strategy	Adopted 545 for, 47 against, 75 abstained	Position: For	Majority line: For
16 Sept 2026	Gender inequalities in health, specifically as regards gender-specific conditions	Adopted 390 for, 218 against, 29 abstained	Position: Against	Majority line: Against
15 Sept 2026	Carbon Border Adjustment Mechanism: extension of its scope to downstream goods and anti-circumvention measures	Passed 464 for, 50 against, 159 abstained	Position: For	Majority line: For
15 Sept 2026	Establishing the Temporary Decarbonisation Fund	Passed 433 for, 97 against, 146 abstained	Position: Abstained ≠ group	Majority line: For
15 Sept 2026	Market stability reserve for the EU Emissions Trading System (EU ETS): ceasing the invalidation of allowances	Passed 367 for, 240 against, 59 abstained	Position: For	Majority line: For
15 Sept 2026	Market stability reserve for the buildings, road transport and additional sectors	Passed 467 for, 158 against, 41 abstained	Position: For	Majority line: For
15 Sept 2026	Implementation into Union law of measures adopted by regional fisheries management organisations	Passed 559 for, 48 against, 62 abstained	Position: For	Majority line: For
15 Sept 2026	General Fisheries Commission for the Mediterranean (GFCM): fishing in the GFCM Agreement area	Passed 580 for, 51 against, 39 abstained	Position: For	Majority line: For
15 Sept 2026	Temporary trade-liberalisation measures applicable to Armenian products	Passed 583 for, 49 against, 39 abstained	Position: For	Majority line: For
15 Sept 2026	Draft amending budget No 2/2026: update of revenue (own resources) and adjustments to expenditure	Passed 440 for, 127 against, 104 abstained	Position: For	Majority line: For
15 Sept 2026	Findings and recommendations of the Special Committee on the European Democracy Shield	Adopted 420 for, 220 against, 26 abstained	Position: For	Majority line: For
15 Sept 2026	Implementation of the Council Recommendation on a Bridge to Jobs – Reinforcing the Youth Guarantee	Adopted 530 for, 77 against, 61 abstained	Position: For	Majority line: For
15 Sept 2026	The EU Youth Strategy 2019–2027	Adopted 477 for, 124 against, 66 abstained	Position: For	Majority line: For
15 Sept 2026	Global role of the euro	Adopted 405 for, 146 against, 60 abstained	Position: No vote recorded	Majority line: For
9 Jul 2026	Establishment of the digital euro	Negotiating mandate approved 416 for, 169 against, 22 abstained	Position: Against ≠ group	Majority line: For
9 Jul 2026	The threat of war crimes, the escalating violations of international humanitarian law and the human rights situation in El-Obeid, Sudan	Adopted 476 for, 28 against, 96 abstained	Position: For	Majority line: For
9 Jul 2026	Ongoing persecution of Christians in Nigeria, notably the Kawel village massacre	Adopted 510 for, 1 against, 86 abstained	Position: For	Majority line: For
9 Jul 2026	Feasibility of a 28th tax regime and its potential to support EU competitiveness	Adopted 366 for, 192 against, 39 abstained	Position: For	Majority line: For
8 Jul 2026	EU–Mexico Political, Economic and Cooperation Strategic Partnership Agreement	Consent given 479 for, 119 against, 65 abstained	Position: For	Majority line: For
8 Jul 2026	Protection of the environment through criminal law	Consent given 499 for, 99 against, 69 abstained	Position: For	Majority line: For
8 Jul 2026	EU–Mexico Interim Agreement on Trade	Consent given 474 for, 131 against, 60 abstained	Position: For	Majority line: For
8 Jul 2026	EU–Morocco Euro-Mediterranean Aviation Agreement: accession to the EU of Croatia (Protocol)	Consent given 625 for, 16 against, 20 abstained	Position: For	Majority line: For
8 Jul 2026	EU-Morocco Agreement for scientific and technological cooperation setting out the terms and conditions for the participation of Morocco in the Partnership for Research and Innovation in the Mediterranean Area (PRIMA): amendment and supplement	Consent given 573 for, 35 against, 37 abstained	Position: For	Majority line: For
8 Jul 2026	Trajectory to decrease the contribution of high indirect land-use change-risk biofuels, bioliquids and biomass fuels to renewable energy targets	Objection passed 388 for, 248 against, 24 abstained	Position: For	Majority line: For
8 Jul 2026	Lead in certain fishing tackle	Objection failed 197 for, 455 against, 7 abstained	Position: Against	Majority line: Against
8 Jul 2026	Genetically modified maize NK603 × T25	Objection passed 460 for, 189 against, 14 abstained	Position: Against	Majority line: Against

Roll-call participation

One cell per sitting while in office, shaded by the share of that day’s roll calls the member voted in. The official attendance register is kept separately by Parliament.

No vote recorded on 4 of 51 sittings with roll calls.

"No vote recorded" is not the same as absent: leave, illness and chairing the sitting look the same.

Data as a table

Roll calls held at each sitting while in office and how many of them the member voted in.
Sitting	Roll calls	Voted in
20 Jan 2025	2	2
21 Jan 2025	1	1
22 Jan 2025	2	2
23 Jan 2025	45	41
10 Feb 2025	1	1
11 Feb 2025	32	32
12 Feb 2025	10	10
13 Feb 2025	30	0
10 Mar 2025	2	2
11 Mar 2025	9	9
12 Mar 2025	228	224
13 Mar 2025	24	21
31 Mar 2025	3	3
1 Apr 2025	35	34
2 Apr 2025	251	249
3 Apr 2025	62	62
5 May 2025	5	5
6 May 2025	10	10
7 May 2025	220	213
8 May 2025	103	102
21 May 2025	2	2
22 May 2025	53	53
16 Jun 2025	2	0
17 Jun 2025	41	41
18 Jun 2025	91	90
19 Jun 2025	87	85
7 Jul 2025	1	0
8 Jul 2025	55	54
9 Jul 2025	134	132
10 Jul 2025	36	36
8 Sept 2025	1	1
9 Sept 2025	101	100
10 Sept 2025	34	34
11 Sept 2025	69	52
6 Oct 2025	2	2
7 Oct 2025	5	5
8 Oct 2025	55	54
9 Oct 2025	65	64
20 Oct 2025	3	3
21 Oct 2025	13	12
22 Oct 2025	186	186
23 Oct 2025	55	54
13 Nov 2025	267	262
24 Nov 2025	3	0
25 Nov 2025	75	75
26 Nov 2025	100	97
27 Nov 2025	125	125
15 Dec 2025	4	4
16 Dec 2025	66	65
17 Dec 2025	43	43
18 Dec 2025	42	41

Voting neighbours

Members who voted the same way most often in the roll calls they both took part in, within and outside the member’s group (group at the date of each vote), over all roll calls of the term.

At least 200 shared roll calls over at least six months in office together. Within = both sat in the same group on the date of the vote; a member who changed group can appear on both lists. Baseline = the median agreement of all pairs of members of the groups the two sat in on the date of each shared vote (within: the group they shared; outside: the two groups), weighted by the votes they shared in each combination.

Within EPP

Agreement: roll calls where both cast the same position, of the roll calls both voted in while in the same group (“shared”); a count below 50 shared. Baseline: the median agreement of every pair of members of that group.
Select	Member	Group	Country	Agreement	Baseline
Select Bogdan Andrzej ZDROJEWSKI	Bogdan Andrzej ZDROJEWSKI	EPP	Poland	95 % of 5 713 shared	89 %
Select Andrzej BUŁA	Andrzej BUŁA	EPP	Poland	95 % of 5 306 shared	89 %
Select Andrzej HALICKI	Andrzej HALICKI	EPP	Poland	95 % of 5 275 shared	89 %
Select Ewa KOPACZ	Ewa KOPACZ	EPP	Poland	95 % of 5 723 shared	89 %
Select Krzysztof BREJZA	Krzysztof BREJZA	EPP	Poland	95 % of 5 397 shared	89 %
Select Magdalena ADAMOWICZ	Magdalena ADAMOWICZ	EPP	Poland	95 % of 5 396 shared	89 %
Select Mirosława NYKIEL	Mirosława NYKIEL	EPP	Poland	94 % of 5 171 shared	89 %
Select Jagna MARCZUŁAJTIS-WALCZAK	Jagna MARCZUŁAJTIS-WALCZAK	EPP	Poland	94 % of 5 439 shared	89 %
Select Bartosz ARŁUKOWICZ	Bartosz ARŁUKOWICZ	EPP	Poland	94 % of 5 531 shared	89 %
Select Marta WCISŁO	Marta WCISŁO	EPP	Poland	94 % of 5 527 shared	89 %

Show all 10 neighbours

Outside the group

Agreement: roll calls where both cast the same position, of the roll calls both voted in while in different groups (“shared”); a count below 50 shared. Baseline: the median agreement of every pair of members of the groups the two sat in on those votes (groups at the date, weighted by the votes shared in each combination).
Select	Member	Group	Country	Agreement	Baseline
Select Urmas PAET	Urmas PAET	Renew	Estonia	84 % of 5 181 shared	82 %
Select Eugen TOMAC	Eugen TOMAC	Renew	Romania	82 % of 4 183 shared	82 %
Select Dan BARNA	Dan BARNA	Renew	Romania	82 % of 5 114 shared	82 %
Select Hilde VAUTMANS	Hilde VAUTMANS	Renew	Belgium	82 % of 5 608 shared	82 %
Select Katri KULMUNI	Katri KULMUNI	Renew	Finland	82 % of 4 574 shared	82 %
Select Jeannette BALJEU	Jeannette BALJEU	Renew	Netherlands	81 % of 5 077 shared	82 %
Select Ivars IJABS	Ivars IJABS	Renew	Latvia	81 % of 4 425 shared	82 %
Select Bart GROOTHUIS	Bart GROOTHUIS	Renew	Netherlands	81 % of 4 378 shared	82 %
Select Benoit CASSART	Benoit CASSART	Renew	Belgium	81 % of 5 306 shared	82 %
Select Anouk VAN BRUG	Anouk VAN BRUG	Renew	Netherlands	81 % of 4 350 shared	82 %

Show all 10 neighbours

Work

Seats in committees, delegations and intergroups, and the dossiers the member leads, shadows or negotiates.

Seats

Body: the committee, delegation or intergroup, with its kind. Role: the member’s role in it. From, To: the dates of the seat (“now” while it lasts).
Body	Role	From	To
Committee on Constitutional AffairsAFCO Committee	Member	19 Jul 2024	now
Committee on Civil Liberties, Justice and Home AffairsLIBE Committee	Substitute	19 Jul 2024	now
Special Committee on the European Democracy ShieldEUDS Special committee	Member	23 Jan 2025	now
Delegation to the EU-Russia Parliamentary Cooperation CommitteeD-RU Delegation	Member	16 Jul 2024	now
Delegation for relations with the Maghreb countries and the Arab Maghreb Union, including the EU-Morocco, EU-Tunisia and EU-Algeria Joint Parliamentary CommitteesDMAG Delegation	Member	19 Sept 2024	now

Show all 5 seats

Dossiers

Dossier: the procedure the declaration names (“No dossier named” for a delegation without one). Role: rapporteur, shadow rapporteur, negotiator or delegation. Committee: the committee that appointed them. Date: of the declaration.
Dossier	Role	Committee	Date
No dossier named	Delegation vice-chair	D-RU	4 Sept 2026
Monitoring and controlling drug precursors and repealing Regulations (EC) No 273/2004 and (EC) No 111/2005	Rapporteur	LIBE	10 Feb 2026
Delegation to Morocco for Morocco-EU Joint Parliamentary Committee	Official delegation	DMAG	22 Oct 2025
EUROPEAN PARLIAMENT’S RIGHT OF INQUIRY	Shadow rapporteur	AFCO	10 Jan 2025
No dossier named	Delegation vice-chair	D-RU	30 Sept 2024
Commission proposal for a Regulation amending Regulation (EU) 2021/1148 (Instrument for Financial Support for Border Management and Visa Policy) as regards the financial envelope and the allocation for the thematic facility - 2024/0059(COD) -	Shadow rapporteur	LIBE	10 Sept 2024

Show all 6 dossier roles

Topics they work on (model-assigned)

Counts: dossiers they spoke on, led or amended, and their questions and motions.

In the chamber

Speeches and statements in plenary debates, newest first; the verbatim report is on Parliament’s site.

21 contributions recorded; 2 on behalf of their group; 31 minutes of speaking time.

Date: the sitting. Debate: the item debated, and the group when they spoke on its behalf. Kind: speech or written statement, with speaking time. Verbatim: the verbatim report on Parliament’s site.
Date	Debate	Kind	Verbatim
15 Sept 2026	The recent hybrid attacks and instrumentalisation of migrants in Ceuta and the need for a coordinated response to protect the EU’s external borders (debate)	Speech · 1 min	Read
15 Sept 2026	Findings and recommendations of the Special Committee on the European Democracy Shield (debate)	Speech · 2 min	Read
19 May 2026	Europe's response to reduced US military deployments in Europe, particularly at its Eastern flank in the light of the latest US decisions (debate)	Speech · 1 min	Read
19 May 2026	EU governance under pressure – institutional responses to global challenges (debate) on behalf of EPP	Speech · 2 min	Read
29 Apr 2026	Danger of normalising relations with Russia, including its participation in major cultural and sports events (debate)	Speech · 1 min	Read
21 Jan 2026	Restoring control of migration: returns, visa policy and third-country cooperation (topical debate)	Speech · 2 min	Read
17 Dec 2025	Cases of pro-Russian espionage in the European Parliament (debate)	Speech · 2 min	Read
15 Dec 2025	Murder of Mehdi Kessaci - urgent need for ambitious European action against drug trafficking (debate)	Speech · 1 min	Read
8 Oct 2025	United response to recent Russian violations of the EU Member States’ airspace and critical infrastructure (debate)	Speech · 1 min	Read
10 Sept 2025	State of the Union (debate)	Speech · 1 min	Read

Show all 21 recent contributions

Questions and motions, 23

Parliamentary questions and motions for resolutions the member authored or co-signed, newest first.

Date: tabled. Title: the question or motion, with its id. Kind: written question or motion for a resolution, with the number of co-authors. Answer: the date of the answer to a question.
Date	Title	Kind	Answer
13 Jul 2026	Missing and runaway children as an indicator of violence, abuse and grooming E-10-2026-002868	Written questionwith 15 co-authors	Not yet answered
29 Jun 2026	Protecting minors online from manipulation, bullying and grooming E-10-2026-002680	Written questionwith 9 co-authors	11 Sept 2026
10 Jun 2026	MOTION FOR A RESOLUTION on the recruitment of children by organised crime B-10-2026-0275	Motion for a resolutionwith 33 co-authors	—
9 Jun 2026	Chinese tomato concentrate imports: protecting EU producers and food security P-10-2026-002375	Priority written questionwith 23 co-authors	13 Jul 2026
20 May 2026	Russia’s admission to the Biennale Festival and EU funding E-10-2026-002082	Written question	16 Jul 2026
25 Mar 2026	Ensuring competition and strategic autonomy in the AI gigafactory supply chain E-10-2026-001255	Written questionwith 17 co-authors	19 Jun 2026
24 Feb 2026	Ensuring risk assessment as the basis for proportionate regulation of cosmetic products E-10-2026-000762	Written questionwith 20 co-authors	16 Apr 2026
18 Feb 2026	Checks on the presence of prohibited substances and trace impurities in non-EU cosmetic products entering the single market E-10-2026-000688	Written questionwith 21 co-authors	21 May 2026
18 Feb 2026	Inspections to ensure regulatory conformity of cosmetic products in the single market with the Cosmetic Products Regulation E-10-2026-000687	Written questionwith 22 co-authors	Not yet answered
9 Feb 2026	MOTION FOR A RESOLUTION on World Cancer Day B-10-2026-0141	Motion for a resolutionwith 18 co-authors	—
14 Jan 2026	MOTION FOR A RESOLUTION seeking an opinion from the Court of Justice on the compatibility with the Treaties of the proposed Partnership Agreement between the European Union and its Member States, of the one part, and the Common Market of the South, the Argentine Republic, the Federative Republic of Brazil, the Republic of Paraguay and the Oriental Republic of Uruguay, of the other part, and the proposed Interim Agreement on Trade between the European Union, of the one part, and the Common Market of the South, the Argentine Republic, the Federative Republic of Brazil, the Republic of Paraguay and the Oriental Republic of Uruguay, of the other part B-10-2026-0060	Motion for a resolutionwith 143 co-authors	—
8 Dec 2025	EU-based banks, including Raiffeisen and UniCredit, still operate in Russia, raising concerns about sanctions circumvention and undermining EU credibility E-10-2025-004854	Written questionwith 37 co-authors	16 Mar 2026
2 Dec 2025	European Democracy Shield – very large online platform algorithms, foreign interference and the spread of disinformation O-10-2025-000044	Oral questionwith 46 co-authors	Not yet answered
13 Nov 2025	European Democracy Shield and the status of Telegram under the Digital Services Act (DSA) E-10-2025-004541	Written question	16 Jan 2026
12 Nov 2025	Big Tech dominance and AI exploitation undermining Europe’s independent media E-10-2025-004498	Written questionwith 4 co-authors	15 Jan 2026
29 Oct 2025	Safeguarding the European ferroalloy sector E-10-2025-004242	Written questionwith 14 co-authors	19 Dec 2025
6 Oct 2025	MOTION FOR A RESOLUTION on a united response to recent Russian violations of the EU Member States’ airspace and critical infrastructure B-10-2025-0419	Motion for a resolutionwith 24 co-authors	—
15 Sept 2025	Safety of Frontex officers and the EU’s strategic autonomy in the context of call for tenders Frontex/2024/OP/0058 E-10-2025-003548	Written questionwith 1 co-author	26 Nov 2025
22 Jul 2025	Reassessing the timetable and safeguards for ETS2: preventing price shocks and ensuring social readiness E-10-2025-003032	Written questionwith 48 co-authors	12 Nov 2025
17 Jul 2025	Study on the potential costs and impact of the Urban Wastewater Treatment Directive (UWWTD) on the pharmaceutical and cosmetic sectors. E-10-2025-002988	Written questionwith 24 co-authors	26 Sept 2025
17 Feb 2025	EU-Mercosur trade agreement E-10-2025-000716	Written questionwith 25 co-authors	24 Apr 2025
9 Dec 2024	EU-Mercosur agreement E-10-2024-002829	Written questionwith 18 co-authors	3 Mar 2025
16 Oct 2024	Fund for the protection and development of the frontier regions of countries bordering Ukraine, Belarus and Russia E-10-2024-002090	Written questionwith 36 co-authors	10 Jan 2025

Amendments tabled in committee, 13

Committee amendment documents that carry amendments by the member, with how many are theirs.

Date: of the amendment document. Text amended: the dossier and the document’s id. Committee: where the amendments were tabled. Amendments: how many in the document are the member’s.
Date	Text amended	Committee	Amendments
23 Jun 2026	on the proposal for a regulation of the European Parliament and of the Council establishing the European Fund for economic, social and territorial cohesion, agriculture and rural, fisheries and maritime, prosperity and security for the period 2028-2034 and amending Regulation (EU) 2023/955 and Regulation (EU, Euratom) 2024/2509 CJ71-AM-790099	CJ71	2
29 Apr 2026	Institutional aspects of artificial intelligence in the context of European integration AFCO-AM-787899	AFCO	2
17 Mar 2026	Amending Decision (EU) 2015/1814 as regards the market stability reserve for the buildings, road transport and additional sector ENVI-AM-785330	ENVI	7
12 Feb 2026	Findings and recommendations of the Special Committee on the European Democracy Shield EUDS-AM-784433	EUDS	4
12 Feb 2026	Findings and recommendations of the Special Committee on the European Democracy Shield EUDS-AM-784407	EUDS	2
12 Feb 2026	Findings and recommendations of the Special Committee on the European Democracy Shield EUDS-AM-784408	EUDS	7
12 Feb 2026	Findings and recommendations of the Special Committee on the European Democracy Shield EUDS-AM-784367	EUDS	1
12 Feb 2026	Findings and recommendations of the Special Committee on the European Democracy Shield EUDS-AM-784405	EUDS	7
12 Feb 2026	Findings and recommendations of the Special Committee on the European Democracy Shield EUDS-AM-784406	EUDS	3
30 Jan 2026	Interim report on the proposal for the multiannual financial framework for 2028-2034 BUDG-AM-784187	BUDG	3

Show all 13 amendment documents

Connections

Dossiers they lead or shadow, committees, party, delegation and other related pages.

Political group

Group European People’s Party EPP · Centre-right · Christian democracy, conservatism

National delegation

Delegation Poland National delegation

Sources & citation

Where the facts on this page come from, and how to cite it.

Permalink: https://news.eu-parl.st-solutions.dev/members/86057?docs=all&period=2025&rows=all
Official source: Member’s profile, European Parliament
Data source: EP Open Data: member record
Licensed CC BY 4.0.
Data version: data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1 · methods
Retrieved: 25 September 2026

Cite as

EU Parl Watch Research (2026). “Bartłomiej SIENKIEWICZ”. Member record. memberId 86057. EU Parl Watch Research. https://news.eu-parl.st-solutions.dev/members/86057?docs=all&period=2025&rows=all (retrieved 25 September 2026). Official source: Member’s profile, European Parliament, https://www.europarl.europa.eu/meps/en/86057. Data: EP Open Data: member record, https://data.europarl.europa.eu/api/v2/meps/86057?format=application%2Fld%2Bjson (CC BY 4.0); data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1.

BibTeX

@misc{epw-member-86057,
  author = {{EU Parl Watch Research}},
  title = {{Bartłomiej SIENKIEWICZ}},
  year = {2026},
  howpublished = {\url{https://news.eu-parl.st-solutions.dev/members/86057?docs=all&period=2025&rows=all}},
  url = {https://news.eu-parl.st-solutions.dev/members/86057?docs=all&period=2025&rows=all},
  urldate = {2026-09-25},
  publisher = {EU Parl Watch Research},
  note = {Member record. memberId 86057. Official source: https://www.europarl.europa.eu/meps/en/86057. Data: EP Open Data: member record (CC BY 4.0); data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1}
}