organization · Reporting owner

Yorktown XI Co LP

Disclosed activity across 1 company

Tapewire entity: 81765
SEC CIK: 0001698089

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
Aris Water Solutions, Inc.ARIS · Entity 15550	10% owner	March 17, 2025	March 19, 2025

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Aris Water Solutions, Inc.

Report date March 17, 2025 · Filed March 19, 2025

Jointly reported with Yorktown Energy Partners XI, L.P., Yorktown XI Associates LLC

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class A Common StockSEC Table I · non-derivative	IndirectSee Footnote	0	Last balance in matching sequence After 2025-03-17 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified. 2 source rows Row 1 · 2025-03-17 · Conversion · Acquired 1,000,000 · Balance 1,000,000 F1: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F2: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F3: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities. Row 2 · 2025-03-17 · Sale · Disposed 1,000,000 · Balance 0 F2: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F3: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities.
Class B Common StockSEC Table I · non-derivative	IndirectSee Footnote	9,304,608	Reported balance After 2025-03-17 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2025-03-17 · Other · Disposed 1,000,000 · Balance 9,304,608 F4: Each share of Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by stockholders generally. F1: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F5: Subject to certain limitations and exceptions described in the Fourth Amended and Restated Limited Liability Company Agreement of Solaris LLC, the units of Solaris LLC are redeemable from time to time for shares of Class A common stock (on a one-for-one basis, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions), with a corresponding number of shares of Class B common stock cancelled for no consideration. F2: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F3: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities.
Solaris Midstream Holdings, LLC UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00	IndirectSee Footnote	9,304,608	Reported balance After 2025-03-17 transaction · row 4 Instrument identity requires review; Table II rows are not merged. 1 source row Row 4 · 2025-03-17 · Conversion · Disposed 1,000,000 · Balance 9,304,608 F1: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F5: Subject to certain limitations and exceptions described in the Fourth Amended and Restated Limited Liability Company Agreement of Solaris LLC, the units of Solaris LLC are redeemable from time to time for shares of Class A common stock (on a one-for-one basis, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions), with a corresponding number of shares of Class B common stock cancelled for no consideration. F2: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F3: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities.

Filing footnotes · ownership attribution and instrument terms

F1: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer.

F2: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F3: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities.

F4: Each share of Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by stockholders generally.

F5: Subject to certain limitations and exceptions described in the Fourth Amended and Restated Limited Liability Company Agreement of Solaris LLC, the units of Solaris LLC are redeemable from time to time for shares of Class A common stock (on a one-for-one basis, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions), with a corresponding number of shares of Class B common stock cancelled for no consideration.

Transaction history

JSON API

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
March 17, 2025 Filed Mar 19, 2025 19:08 UTC	Aris Water Solutions, Inc. ARIS · Entity 15550	ConversionSolaris Midstream Holdings, LLC Units · Derivative	1,000,000	$0.00 Strike: $0.00	$0.00	Disclosure SEC source: 0001140361-25-009501 · form4.xml · derivative · entry 4 Yorktown Energy Partners XI, L.P. · CIK 0001667954 · 10% owner Yorktown XI Co LP · CIK 0001698089 · 10% owner Yorktown XI Associates LLC · CIK 0001687163 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 9,304,608 Underlying: Class A Common Stock · 9,304,608 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F5 · derivative.exercise_price: Subject to certain limitations and exceptions described in the Fourth Amended and Restated Limited Liability Company Agreement of Solaris LLC, the units of Solaris LLC are redeemable from time to time for shares of Class A common stock (on a one-for-one basis, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions), with a corresponding number of shares of Class B common stock cancelled for no consideration. F1 · kind: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F2 · shares: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F5 · price: Subject to certain limitations and exceptions described in the Fourth Amended and Restated Limited Liability Company Agreement of Solaris LLC, the units of Solaris LLC are redeemable from time to time for shares of Class A common stock (on a one-for-one basis, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions), with a corresponding number of shares of Class B common stock cancelled for no consideration. F5 · derivative.exercise_date: Subject to certain limitations and exceptions described in the Fourth Amended and Restated Limited Liability Company Agreement of Solaris LLC, the units of Solaris LLC are redeemable from time to time for shares of Class A common stock (on a one-for-one basis, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions), with a corresponding number of shares of Class B common stock cancelled for no consideration. F5 · derivative.expiration_date: Subject to certain limitations and exceptions described in the Fourth Amended and Restated Limited Liability Company Agreement of Solaris LLC, the units of Solaris LLC are redeemable from time to time for shares of Class A common stock (on a one-for-one basis, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions), with a corresponding number of shares of Class B common stock cancelled for no consideration. F2 · derivative.underlying_shares: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F2 · balance_after: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F3 · ownership.nature: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities. Read SEC document
March 17, 2025 Filed Mar 19, 2025 19:08 UTC	Aris Water Solutions, Inc. ARIS · Entity 15550	OtherClass B Common Stock	1,000,000	$0.00	$0.00	Disclosure SEC source: 0001140361-25-009501 · form4.xml · nonDerivative · entry 3 Yorktown Energy Partners XI, L.P. · CIK 0001667954 · 10% owner Yorktown XI Co LP · CIK 0001698089 · 10% owner Yorktown XI Associates LLC · CIK 0001687163 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 9,304,608 F4 · security: Each share of Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by stockholders generally. F1 · kind: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F1 · price: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F5 · price: Subject to certain limitations and exceptions described in the Fourth Amended and Restated Limited Liability Company Agreement of Solaris LLC, the units of Solaris LLC are redeemable from time to time for shares of Class A common stock (on a one-for-one basis, subject to conversion rate adjustments for stock splits, stock dividends and reclassification and other similar transactions), with a corresponding number of shares of Class B common stock cancelled for no consideration. F2 · balance_after: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F3 · ownership.nature: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities. Read SEC document
March 17, 2025 Filed Mar 19, 2025 19:08 UTC	Aris Water Solutions, Inc. ARIS · Entity 15550	SaleClass A Common Stock	1,000,000	$27.70	$27,700,000.00	Disclosure SEC source: 0001140361-25-009501 · form4.xml · nonDerivative · entry 2 Yorktown Energy Partners XI, L.P. · CIK 0001667954 · 10% owner Yorktown XI Co LP · CIK 0001698089 · 10% owner Yorktown XI Associates LLC · CIK 0001687163 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 0 F2 · balance_after: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F3 · ownership.nature: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities. Read SEC document
March 17, 2025 Filed Mar 19, 2025 19:08 UTC	Aris Water Solutions, Inc. ARIS · Entity 15550	ConversionClass A Common Stock	1,000,000	$0.00	$0.00	Disclosure SEC source: 0001140361-25-009501 · form4.xml · nonDerivative · entry 1 Yorktown Energy Partners XI, L.P. · CIK 0001667954 · 10% owner Yorktown XI Co LP · CIK 0001698089 · 10% owner Yorktown XI Associates LLC · CIK 0001687163 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnote Disclosed balance after: 1,000,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F1 · price: On March 17, 2025, Yorktown Energy Partners XI, L.P. ("Yorktown XI") requested that 1,000,000 shares of Class B common stock of the Issuer ("Class B common stock") and 1,000,000 units of Solaris Midstream Holdings, LLC ("Solaris LLC") be redeemed, and Solaris LLC elected to redeem such securities for an aggregate of 1,000,000 shares of Class A common stock of the Issuer. F2 · balance_after: The reporting persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interests therein, and this report shall not be deemed an admission that any reporting person is the beneficial owner of the securities for Section 16 or any other purpose. F3 · ownership.nature: These securities are held directly by Yorktown XI, whose general partner is Yorktown XI Company LP ("Yorktown XI Company"), whose general partner is Yorktown XI Associates LLC ("Yorktown XI Associates"). Yorktown XI Company and Yorktown XI Associates are indirect beneficial owners of the reported securities. Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.