Casdin Partners (NASDAQ: BLFS) files Form 144 for 650,000-share resale notice

Rhea-AI Filing Summary

Casdin Partners Master Fund, L.P. submitted a Form 144 notice regarding proposed sales of Common Stock of BLFS. The filing lists 650,000 shares tied to a broker arrangement and records recent dispositions of 300,000 shares on 05/19/2026 and 250,000 shares on 05/20/2026.

Insights

Securities Compliance Counsel

Form 144 notice records planned resale and recent dispositions by a selling holder.

The filing lists 650,000 shares associated with the sale notice and identifies two completed dispositions: 300,000 shares on 05/19/2026 and 250,000 shares on 05/20/2026. It shows broker involvement (BMO Capital Markets) and cash consideration for the past transactions.

Timing and precise proceeds treatment for the 650,000-share notice are not detailed beyond the broker listing; subsequent SEC or exchange reports will reflect actual transactions and settlement details.

Key Figures

Notice shares: 650,000 shares Disposition 1: 300,000 shares Disposition 2: 250,000 shares +2 more

5 metrics

Notice shares 650,000 shares listed with broker on 05/21/2026

Disposition 1 300,000 shares sold on 05/19/2026 for $6,795,000

Disposition 2 250,000 shares sold on 05/20/2026 for $5,925,000

Listed aggregate amount $15,600,000.00 amount shown adjacent to the 650,000-share line in the filing

Reference share figure 48,857,415 numeric value appearing on the securities line in the filing

Key Terms

Form 144, Common Stock, par value $0.001, Broker (BMO Capital Markets)

3 terms

Form 144 regulatory

"submitted a Form 144 notice regarding proposed sales (Form 144 notice)"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Common Stock, par value $0.001 financial

"Common Stock, par value $0.001 per share (security description)"

Broker (BMO Capital Markets) market

"BMO Capital Markets 151 W. 42nd St. New York NY 10036 (broker listed)"

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock, par value $0.001 per share	BMO Capital Markets 151 W. 42nd St. New York NY 10036	650000	15600000.00	48857415	05/21/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock, par value $0.001 per share	08/13/2018	Purchase	The shares were purchased directly from the Issuer.			650000	08/13/2018	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Casdin Partners Master Fund, L.P. 1350 Avenue of the Americas, Suite 2600 New York NY 10019	Common Stock, par value $0.001 per share	05/19/2026	300000	6795000.00
Casdin Partners Master Fund, L.P. 1350 Avenue of the Americas, Suite 2600 New York NY 10019	Common Stock, par value $0.001 per share	05/20/2026	250000	5925000.00

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does BLFS Form 144 filed by Casdin Partners mean?

It notifies the SEC of an intended resale of BLFS common stock by Casdin Partners. The notice lists 650,000 shares and names a broker, indicating a planned resale procedure under applicable rules.

How many BLFS shares did Casdin Partners recently sell?

They reported sales of 300,000 shares on 05/19/2026 and 250,000 shares on 05/20/2026. Each sale lists cash consideration in the filing for those dates.

Who is the broker handling the BLFS resale listed in Form 144?

The filing lists BMO Capital Markets as the broker. The broker's name appears alongside the 650,000-share notice, indicating their role in executing resale transactions.

What proceeds are shown for the recent BLFS dispositions?

The filing shows proceeds of $6,795,000 for 300,000 shares and $5,925,000 for 250,000 shares. Those amounts are recorded in the sale entries in the notice.

Does the Form 144 change BLFS outstanding share count?

No change to outstanding shares is indicated in the notice. The filing documents resale activity by a holder and does not amend company outstanding share totals.