Bleichroeder Acquisition Corp. I (MRLN) IPO — S-1 Filing, Stock & Insider Activity

Bleichroeder Acquisition Corp. I IPO — Status & S-1 Filing

Ticker: MRLN
Status: Registered — S-1 filed with the SEC
S-1 filed: 2026-04-15
Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
SEC CIK: 0002028707 · View the S-1 on SEC EDGAR →

Track every registration update on the InsiderAlpha IPO tracker.

Updated Jul 16, 2026 · Last SEC filing 2026-05-22

Bleichroeder Acquisition Corp. I (MRLN) has filed 10 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-22. 2 Form 8-K material event filings were reported by MRLN in the last 90 days. InsiderAlpha tracks every MRLN SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Bleichroeder Acquisition Corp. I (MRLN)

SEC CIK	0002028707

90-Day SEC Filing Activity

Form 4 filings (90d)	10
Form 8-K filings (90d)	2
Latest Form 4 filing	2026-05-22

Recent MRLN Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-05-20	George Matthew Spencer	Chief Executive Officer	A — Grant or award	531.8K	—	—	SEC
2026-05-20	Montelongo Michael	Director	A — Grant or award	37.5K	—	—	SEC
2026-05-20	BLITZER MICHAEL	Director	A — Grant or award	37.5K	—	—	SEC
2026-05-20	Ravestein Leslie Renee	CLO and Secretary	A — Grant or award	199.0K	—	—	SEC
2026-05-20	Brunner Mark Rawlins	Chief Revenue Officer	A — Grant or award	225.9K	—	—	SEC
2026-05-20	Trabuco Carolyn	Director	A — Grant or award	37.5K	—	—	SEC
2026-05-20	Braithwaite Kenneth John	Director	A — Grant or award	37.5K	—	—	SEC
2026-05-20	Carrithers Ryan Michael	CFO & Treasurer	A — Grant or award	256.4K	—	—	SEC
2026-05-20	BRANNON KELYN	Director	A — Grant or award	37.5K	—	—	SEC
2026-05-20	Smith Robert Hanson	Director	A — Grant or award	37.5K	—	—	SEC
2026-03-16	Bleichroeder Sponsor 1 LLC	10% Owner	M — Option exercise	42.5K	—	—	SEC
2026-03-16	George Matthew Spencer	Chief Executive Officer	A — Grant or award	14.89M	—	—	SEC
2026-03-13	Bleichroeder Sponsor 1 LLC	10% Owner	M — Option exercise	8.33M	—	—	SEC
2025-12-09	GOLDMAN SACHS GROUP INC	Insider	S — Open-market sale	3	$10.95	$33	SEC
2025-12-09	GOLDMAN SACHS GROUP INC	Insider	P — Open-market purchase	2	$10.98	$22	SEC

All transactions sourced from SEC EDGAR Form 4 filings for Bleichroeder Acquisition Corp. I (MRLN). Updated in real time as new filings are submitted to the SEC.

Most-Active MRLN Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Carrithers Ryan Michael	2	—
Ravestein Leslie Renee	2	—
Smith Robert Hanson	1	—
George Matthew Spencer	1	—
BLITZER MICHAEL	1	—

Recent MRLN Form 8-K Material Events

2026-05-14 — Item 2.02, 9.01 [SEC]
2026-04-29 — Item 1.01, 3.02, 7.01, 9.01 [SEC]
2026-03-20 — Item 1.01, 2.01, 3.02, 3.03, 4.01, 5.01, 5.02, 5.03, 5.06, 8.01, 9.01 · Acquisition · neutral [SEC]
Inflection Point Acquisition Corp. IV (formerly Bleichroeder Acquisition Corp. I) completed its merger with Merlin Labs, Inc. on March 16, 2026. The combined company is now operating under the name Merlin, Inc. and trades on Nasdaq under ticker MRLN. This is the administrative cl
2026-03-12 — Item 5.07 [SEC]
2026-02-20 — Item 7.01, 9.01 · Other · neutral [SEC]
Inflection Point Acquisition Corp. IV announced that Merlin Labs will host an investor webinar on March 3, 2026 to present to analysts and investors. This is a routine disclosure of a scheduled investor relations event related to the previously announced business combination agre

Recent Insider Filings

2026-05-22 — Carrithers Ryan Michael (CFO & Treasurer)
2026-05-22 — Braithwaite Kenneth John (Director)
2026-05-22 — Smith Robert Hanson (Director)
2026-05-22 — BRANNON KELYN (Director)
2026-05-22 — BLITZER MICHAEL (Director)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MRLN insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

MRLN Insider Trading — FAQ

What is the latest insider trade for MRLN?: Bleichroeder Acquisition Corp. I (MRLN) had 10 insider filings in the last 90 days, with the most recent on 2026-05-22. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying MRLN stock?: 0 insider purchases of MRLN were filed in the last 90 days.
How many insiders are selling MRLN stock?: 0 insider sales of MRLN were filed in the last 90 days.
Where can I see MRLN SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every MRLN SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

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